2016 No. 07-Application of Electronic Technique

Special Column-Key Techniques of 5G and Algorthm Implement

Study on service requirements driven 5G key technologies

DOI：10.16157/j.issn.0258-7998.2016.07.001

Author：Xu Fangmin，Qiu Chao，Zhao Chenglin

Author Affilications：College of Information and Communication Engineering，Beijing University of Posts and Telecommunications，Beijing 100876，China

Abstract：The replacement of previous mobile communication technology is based on the goal of higher data rate, and the main difference is the multiple access techniques. While the fifth generation mobile communication is driven by the various application scenarios of mobile Internet and Internet of Things. The application scenario has diverse performance requirements for the technology. Different key technologies may be utilized for dedicated application scenarios. This paper attempts to explain the relationship among application scenarios, technical requirements and key technologies in the fifth generation mobile communication, and gives a brief introduction for some of the physical layer key technologies.

Key word：
5G

application scenario

technology requirement

key technology

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FPGA implementation of the sparse code multiple access system based on 5G wireless communication

DOI：10.16157/j.issn.0258-7998.2016.07.002

Author：Song Chunxue,Wen Ping，Zhang Xuechen

Author Affilications：College of Communication Engineering，XIDIAN University，Xi′an 710018，China

Abstract：Based on the understanding of the multiple access in the wireless communication, an implementation scheme of the sparse code multiple access system with a low complexity based on 5G wireless communication is put forward. By using synthesizable Verilog language in the Quartus II and ModelSim platform, the simulation of SCMA system and FPGA verification are realized. The results prove that the design can achieve perfect function ,and it can be applied in practice.

Key word：
5G

SCMA

max-log-MPA

FPGA

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An efficient and low-complexity encoding and decoding algorithm of Polar Code

DOI：10.16157/j.issn.0258-7998.2016.07.003

Author：He Tianguang，Du Jiang

Author Affilications：School of Communication Engineering，Chengdu University of Information Technology，Chengdu 610225，China

Abstract：Polar Codes, a new high-performance coding technology, is a research focus in the 5G mobile communication system, and has been widely concerned. The performance of traditional Successive Cancelation(SC) decoding at short to moderate block lengths is disappointing, in order to improve the performance of polar codes, this paper studies the principle and structure of SC decoding algorithm from two aspects of calculation and storage structure, a modified algorithm of SC decoding called CRC - SCL decoding algorithm. For the aims of decreasing the complexity of the algorithm, this paper introduces the "Lazy Copy" algorithm. The simulation results show that compared with the SC algorithm, the SCL algorithm has significantly improve performance.

Key word：
Polar Codes

SC

SCL

Lazy Copy

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F-OFDM algorithm design for 5G system

DOI：10.16157/j.issn.0258-7998.2016.07.004

Author：Gao Yanan，Yang Tao，Hu Bo

Author Affilications：Department of Electronic Engineering，Fudan University，Shanghai 200433，China

Abstract：In this paper, the framework of F-OFDM is applied in the traditional LTE system. Using this new waveform, LTE system can support more flexible parameter configuration, which will meet the increasing needs of the forthcoming 5G wireless communication. By designing proper transmit sub-band filters, the out of band leakage can be greatly suppressed. At the receiver, matched filter is used to realize the data decoupling of each sub-band. Finally, the block error rate(BLER) performance of OFDM and F-OFDM is compared through the computer simulation. The results show that the F-OFDM system performances better than the OFDM one in the presence of the adjacent band interference.

Key word：
F-OFDM

out of band leakage(OOB)

sub-band filter

BLER

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Adaptive interference cancellation for UFMC system based on LMS algorithm

DOI：10.16157/j.issn.0258-7998.2016.07.005

Author：Tian Guangdong，Wang Shan，He Ping，Duan Sirui

Author Affilications：Chongqing University of Posts and Telecommunications，Chongqing 400065，China

Abstract：Universal Filtered Multi-Carrier(UFMC) technology is a 5G candidate waveform to support asynchronous transmission. However, the UFMC systems is sensitive to carrier frequency offset what is the same as the OFDM system.Carrier frequency offset leads to inter-carrier interference(ICI) and inter-band Interference(IBI)，and the performance of the system is decreased dramatically. This paper presents a method to eliminate interference in the Universal Filtered Multi-Carrier(UFMC) system. The method was based on the Least Mean Square algorithm(LMS) that the output of 2N point FFT is mainly processed. The frequency offset error is close to zero in the receiver through the iterative operation and filter processing, which can eliminate the interference caused by frequency offset in the received signal. The simulation results show that the UFMC system has better bit error rate performance after the frequency offset correction.

Key word：
UFMC

LMS

carrier frequency offset

inter-carrier interference

inter-band Interference

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Review and Comment

Review of single event upset experiences about SRAM memory chips in air radiation environment

DOI：10.16157/j.issn.0258-7998.2016.07.006

Author：Wang Peng1，Zhang Daoyang1，2，Xue Qiannan1

Author Affilications：1.Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance， Civil Aviation University of China，Tianjin 300300，China； 2.College of Safety Science & Engineering，Civil Aviation University of China，Tianjin 300300，China

Abstract：With the rapid development of integrated electronic devices, the integration of SRAM memory devices which applied in avionics systems grew more and more high, and the sizes became smaller and smaller. It could also lead to the possibility of single event upset happen in SRAM memory become more and more high. The reliability and security of air flight will have serious hidden troubles. In this paper, we will make a summary about SRAM memory chips experiments from the results of the ground radiation experiments and atmospheric flight experiments which have done by foreign institutions. At the last, the paper will analyse the effect and the failure characteristics of SRAM memory chips when they have single event upset.

Key word：
single event upset

SRAM

irradiation experiment

flight experiment

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Microelectronic Technology

A digital processing board design based on the architecture of 4DSP and FPGA

DOI：10.16157/j.issn.0258-7998.2016.07.007

Author：Dong Xuanming

Author Affilications：Institute of China Electronics Technology Group Co.，LTD.38，Hefei 230088，China

Abstract：In order to satisfy the application of high performance data processing, low power consumption and simple programmability, a 4Digital Signal Processor(4DSP) + Field-Programmable Gate Array(FPGA) architecture digital processing board was designed based on the chip TI TMS320C6678 and XilinxXC5VSX95T, with high bandwidth data input/output interface. This digital processing board implemented by specific hardware circuit will be widely used in aviation equipment, vehicle equipment and other special equipment worked in hard condition, which will effectively improve the data processing performance of the equipment.

Key word：
DSP

FPGA

SRIO

CPLD

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Design of single-port ternary SRAM cell based on CNFET

DOI：10.16157/j.issn.0258-7998.2016.07.008

Author：Gong Daohui，Wang Pengjun，Kang Yaopeng

Author Affilications：Institute of Circuits and Systems，Ningbo University，Ningbo 315211，China

Abstract：By researching the Carbon Nanotube Field Effect Transistor(CNFET) and Multi-value storage principle, a scheme of single-port ternary SRAM is proposed. In this scheme, the cross-coupling method storages ternary data, using the characteristic of carbon nanotube inverter such as multi-threshold. To reducing the number of interconnections, the single-port technique shares the reading and writing ports. And also, the isolation and cut off cross-coupling structure enhances the stability of ternary SRAM cell. Finally, HSPICE simulation results show that the designed circuit has proper logic functionality. Comparing with conventional CMOS ternary circuit, the proposed circuit improves about 24% in reading and writing speed.

Key word：
carbon nanotube field effect transistor

single-port

ternary SRAM

multi-valued logic

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Design of constant-current control chip for driving high-power LED

DOI：10.16157/j.issn.0258-7998.2016.07.009

Author：Fu Min，Ji Baojian，Huang Shengming，Xia Chenyang

Author Affilications：College of Electrical Engineering and Control Science，Nanjing TECH University，Nanjing 211816，China

Abstract：An IC chip which is based on BUCK and driven by power LED constant current is designed, the chip is integrated by the bandgap reference module, LDO module, bias current generating module, digital dimming module, over temperature protection module, logic control module and driver module. This journal focus on the design of circuit in the band gap reference source module, high voltage LDO module and overheat protection module. The layout of the whole circuit is simulated and optimized by Cadence software. And the layout of the whole circuit is designed and verified, area of the chip is 1 680 μm×1 210 μm. The chip was also manufactured by 0.35 μm 40 V BCD technology of VIS company. The test results show that the chip realizes high-precision based on the mode to control conducting time. It has functions conclude a wide range of input voltage, low voltage reference source and PWM dimming, and the current which used to drive this chip is up to 1.5 A. Furthermore, it can work without compensation very well.

Key word：
LED

on-time control

constant current driving

PWM dimming

modular circuit

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The design of a low-power circuit for ultra-low energy harvest

DOI：10.16157/j.issn.0258-7998.2016.07.010

Author：Rong Xun，Chen Zhimin，Cao Guangzhong

Author Affilications：Shenzhen Key Laboratory of Electromagnetic Control，Institute of Automation Shenzhen University，Shenzhen 518060，China

Abstract：In order to achieve the high efficiency of harvesting various ultra-low energy in the environment, a low-power circuit for ultra-low energy harvesting was designed.Using a voltage convert circuit which is mainly supported by power management chip LTC3588-1,a charging control circuit whose core is charging control chip LTC4071 and a ultra-low harvest circuit which is designed by timer circuit TPL5100,the circuit could storing the energy harvested to lithium battery or supplying power to load.According to the experimental result,the circuit can be used to harvesting the ultra-low energy and the average power consumption of the circuit is low to 182uw, which verifies the feasibility of the network node energy supply. The circuit has the advantages of low power consumption, low cost and so on,and will have prospects.

Key word：
ultra-low energy harvesting

circuit

voltage converted

low-power

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Effect and analysis of jitter on high performance ADC in ATE testing

DOI：10.16157/j.issn.0258-7998.2016.07.011

Author：Yu Kun

Author Affilications：Sino IC Technology Co.，Ltd.，Shanghai 201203，China

Abstract：The high speed ADC test technology are studied. The clock signal and the input analog signal need to be very "clean", which is a signal with small jitter. From the theoretical analysis, the influence of different clock jitter on the ADC test results is analyzed. The actual use of ATE for a 12 bit, 105 MS/s high performance ADC testing, two different clock jitter conditions are used to provide the clock signal and input analog signal, measured the dynamic parameters such as SINAD, SFDR, SNR, compared with two cases to verify the impact of the signal jitter on ADC test results which can not be negletable, such as SNR test results have about 2~5 dB differences in different frequency points.

Key word：
testing

jitter

A/D Converter

SNR

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NoC security reserch based on authenticated ancryption

DOI：10.16157/j.issn.0258-7998.2016.07.012

Author：Chen Songtao，Xu Jinfu，Liu Hangtian

Author Affilications：PLA Information Engineering University，Zhengzhou 450001，China

Abstract：Sensitive information during transmission on NoC may be extracted. In order to solve this security threat, NoC security technology based on authentication encryption is proposed. IP cores that execute the same application and need to exchange sensitive information are divided into one security domain. IP cores in the security domain use Diffie-Hellman protocol to negotiate key. After the key agreement is completed, GCM authenticated encryption algorithm is used to encrypt and authenticate the packets carrying sensitive information, so as to effectively protect the confidentiality and integrity of data packets. Simulation and synthesis results show that the transmission delay caused by safety protection scheme is small, and resource consumption is low, improving the safety and reliability of the NoC.

Key word：
network on chip

security domain

Diffie-Hellman

authenticated encryption

Galois/Counter Mode

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Embedded Technology

Design of frequency measurement system for vibrating wire sensor based on all phase FFT

DOI：10.16157/j.issn.0258-7998.2016.07.013

Author：Chen Ni1，He Huaguang2，Xie Kaizhong3

Author Affilications：1.College of Preclinical Medicine，Guangxi Medical University，Nanning 530021，China； 2.College of Computer and Electronics and Information，Guangxi University，Nanning 530004，China； 3.College of Civil and Architecture Engineering，Guangxi University，Nanning 530004，China

Abstract：The measurement precision declines because of the existence of spectrum leakage and fence effect,when using FFT method in frequency domain. A high precision frequency measurement method based on all phase FFT-Rife double spectrum line correction algorithm is proposed. And the algorithm is transplanted to the STM32 processor as core of the vibrating wire sensor frequency measurement system. Experimental results show that，the absolute error of the system is less than 0.2 Hz, it has a higher frequency measurement accuracy compared with other methods.

Key word：
full phase FFT-Rife correction algorithm

vibrating wire sensors

frequency measurement

STM32

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Embedded temperature monitoring system based on RFID temperature tag

DOI：10.16157/j.issn.0258-7998.2016.07.014

Author：Si Yu，Feng Peng，Yu Shuangming，Wu Nanjian

Author Affilications：State Key Laboratory for Superlattices and Microstructures，Institute of Semiconductors，Chinese Academy of Sciences， Beijing 100083，China

Abstract：An embedded temperature monitoring system based on passive UHF RFID temperature tags is designed. The system consists of passive UHF RFID tags with CMOS temperature sensor，the ZY-H2000 handheld reader and an embedded temperature monitoring software developed on the handheld. Since the temperature tags need to work in optimum transmit power, a dynamic power matching algorithm is designed, which ensures the accuracy of temperature data. The algorithm with timer mechanism and RSSI value to determine the starting power, greatly reduces the time required for the temperature measurement. The test results show that when the distance between the tag and the handheld is respectively 10 cm，30 cm and 50 cm, the temperature measurement error is less than ±1 ℃.

Key word：
RFID

handheld

passive UHF temperature tag

dynamic power matching algorithm

CMOS temperature sensor

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Hardware-in-the-Loop system of GPS receiver baseband processor based on FPGA

DOI：10.16157/j.issn.0258-7998.2016.07.015

Author：Wang Jiaran，Wang Feng，Wei Dongming，Li Chuanmai

Author Affilications：School of Information Engineering, Guangdong University of Technology，Guangzhou 510006，China

Abstract：To solve the cumbersome and complex problem of parameter tuning of the GPS tracking loop, and the time-consuming problem of repeated compilation of FPGA, a kind of Hardware-in-the-Loop system of GPS receiver baseband processing unit based on FPGA is designed. The system used the GPS baseband processing unit designed by FPGA as the core to complete the acquisition of the satellite signal and baseband signal processing. The processing results are transmitted to tracking loop designed by the Simulink in real time through the Ethernet. After processing, the results are fed back to the baseband processing unit to complete the acquisition and tracking of the satellite signal. By test, the system realizes the acquisition and tracking of the satellite signal, the validity and accuracy of the platform are verified, and the efficiency of the design, tuning, verification and implementation of the GPS tracking loop is improved. It is useful for rapid development of GNSS IC and system.

Key word：
GPS

FPGA

Hardware-in-the-Loop

Simulink

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The design of a submarine multi-mode measurement and control system based on ARM Cortex-M3/M4

DOI：10.16157/j.issn.0258-7998.2016.07.016

Author：Yu Haibin1，Yuan Jiuyi1，Li Guanbao2，Yan Haiyu1

Author Affilications：1.Electronic Information College，Hangzhou Dianzi University，Hangzhou 310018，China； 2.First Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China

Abstract：The acoustic characteristics of seabed sediments are of great significance in seabed resource exploration, military affairs, geophysical research and other fields. Considering the problems of current in-situ acoustic sediment probe device including single working mode and a great limitation in use, this article designed and achieved an in-situ acoustic measurement and control system, which synchronously has real-time monitoring mode, touch-ground self-contained model and delayed self-contained model. With STM32 processor as the core, this system provided multiple functions，such as electric machine control, acquisition and transmission of acoustic signals and sensor signals, underwater video monitoring and job log storage. Test results demonstrated that this system was characterized by stable and reliable performance and its ability met the design requirements under different working modes.

Key word：
multi-mode

STM32

data acquisition

video supervision

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Measurement Control Technology and Instruments

Gesture recognition base on wearable controller

DOI：10.16157/j.issn.0258-7998.2016.07.017

Author：Xu Jun，Liu Chunhua，Meng Yuexia，Ma Jing

Author Affilications：School of Automation，Harbin University of Science and Technology，Harbin 150080，China

Abstract：With the development of wearable electronic devices, human-machine interactions based on gesture recognition has become a research hotspot. In order to miniaturize the size of wearable devices and optimize gesture recognition algorithm, a finger wearable controller with gesture recognition function is proposed. The controller is composed of MEMS accelerometer and gyro inertial sensor, Wi-Fi module and embedded microprocessor, which exports finger gestures to PC via Wi-Fi protocol. Six basic features is extracted, the gestures are classified by a decision tree classifier combined with the attitude angle without any template matching. Results based on 20 experiments, achieves an overall recognition accuracy of 97%, and the algorithm can be used for finger gesture recognition without user training process prior.

Key word：
gesture recognition

feature extraction

wearable controller

MEMS inertial sensor

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Multi-FPGA acquisition of FHDS satellite TT&C signal

DOI：10.16157/j.issn.0258-7998.2016.07.018

Author：Chen Xiao，Li Guangxia，Li Zhiqiang，Zhu Wenming

Author Affilications：College of Communications Engineering，PLA University of Science and Technology，Nanjing 210007，China

Abstract：A multi-FPGA system is devised to implement the acquisition of a hybrid fast frequency hopping and direct-sequence spread spectrum satellite TT&C signal under large time delay and high dynamics. The system searches the Doppler frequency in time-division manner, while one main FPGA manages the acquisition control and the fast wiping off FH carrier and DS code and N-supplementary FPGAs deal with the finer time searching and coherent accumulating. According to the signal paradigm and acquisition requirements, the processors are of Xilinx XQR4VFX-series. With fewer programming files and low power consumption, the complex signal acquisition problem is solved while the space-grade processor with higher performance is not available.

Key word：
FHDS hybrid spread spectrum

multi-FPGA

TT&C

signal acquisition

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Estimation of battery SOC based on extended Kalman filter with neural network algorithms

DOI：10.16157/j.issn.0258-7998.2016.07.019

Author：Han Zhonghua1，2，Liu Shanshan1，2，Shi Gang2，Dong Ting3

Author Affilications：1.Faculty of Information and Control Engineering，Shenyang Jianzhu University，Shenyang 110000，China； 2.Laboratory of Industrial Control Network and System Shenyang Institute of Automation of China，Shenyang 110000，China； 3.China Electronics Standardization Institute，Beijing 100007，China

Abstract：An extended Kalman filter algorithm(EKF) with neural network is used to estimate the state of lithium battery(SOC)，which is based on Thevenin equivalent circuit. In the process of extended Kalman filter estimation, the real-time model parameters should be updated with the different SOC regard to the different SOC the different model parameters. The traditional approach which has a big error is that the fitting curve between SOC and the various separate parameters is common. To solve this problem neural network is applied to fit curve between the parameters of circuit model and the SOC separately. Finally,the results with the error less than 3% show that compared with the pure extended Kalman algorithm, the method can realize the more accurate estimation of the remaining battery power.

Key word：
SOC of Li_ion battery

extended Kalman filter algorithm

neural network

RC equivalent circuit

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Research on industrial control protocol vulnerability mining technology based on Fuzzing test

DOI：10.16157/j.issn.0258-7998.2016.07.020

Author：Li Hang，Dong Wei，Zhu Guangyu

Author Affilications：National Engineering Laboratory for Industrial Control System Information Security Technology Industrial Control System Security Testing Center， The 6th Research Institute of China Electronics Corporation，Beijing 102209，China

Abstract：In order to discover the problem of information security in industrial control system， analysis and research on MMS protocol of industrial control system protocol were done based on the successful experience of Fuzzing testing technology in the field of software testing， and the relay protection equipment in the field of power system automation was used to carry out the Fuzzing test of MMS protocol by means of bridge， which mined vulnerabilities of measured equipment effectively and led to the DUT′s denial of service. Some analysis about the problem of vulnerability was done. The research shows that the Fuzzing test technology of industrial control protocol can be used to effectively carry out the work of vulnerability mining in industrial control information security.

Key word：
ICS

security

Fuzzing

MMS

vulnerability discovery

protocol

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The intelligent two-way sign language translation system

DOI：10.16157/j.issn.0258-7998.2016.07.021

Author：Li Haoliang1，Mao Xiaobo1，Song Jiyuan2，Zhang Xiaoning3

Author Affilications：1.School of Electrical Engineering，Zhengzhou University，Zhengzhou 450001，China； 2.School of Mechanical Engineering，Zhengzhou University，Zhengzhou 450001，China； 3.School of Physical Engineering，Zhengzhou University，Zhengzhou 450001，China

Abstract：This paper designs a set of intelligent bionic two-way sign language translation system, which is mainly composed of STM32 microprocessor, LD3320 non specified speech recognition module, SYN6288 speech synthesis chip components, and so on， it can realize two-way translation of voice and gestures. Voice turn gestures of speech recognition can be realized，according to the instructions to complete translation for sign language robot. By data glove capturing arm movements and gestures，gestures to speech part can identify sign and control the voice of sign language robot. The system has the advantages of low cost, high degree recognition and the convenience, and has a good application prospect.

Key word：
STM32

data glove

speech recognition

sign language translation

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Communication and Network

An analysis of Doppler shift and MIMO performance in a brief 3-D geometric channel model

DOI：10.16157/j.issn.0258-7998.2016.07.022

Author：Yao Yingli1，Zhou Jie1，2，Wang Yi1，Liu Peng1

Author Affilications：1.Jiangsu Key Lab. of Meteorological Observation and Information Processing， Nanjing University of Information Science and Technology，Nanjing 210044，China； 2.Dept.of Electronic and Electrical Engineering，Niigata University，Niigata 950-2181，Japan

Abstract：In multi-path environments, in order to solve the problem of mobile communication in the three-dimensional space, this paper presents a new statistical model of the 3D spatial domain, which mainly studies the performance of the MIMO multi antenna system. In macrocell mobile communication environment, the model is able to estimate the multipath fading channel of important space channel parameters, the multipath fading channel of AOA probability density distribution are derived. In addition, the channel MIMO performance influencing factors is analyzed, including MIMO spatial correlation, channel capacity and antenna array configuration. The results of numerical simulation are compared with 3D multipath fading channel model，which shows that the channel parameters of the model estimated are in line with the theory and the actual communication environment，and it provides innovative research to evaluate the MIMO antenna receiving system and simulation of wireless communication system.

Key word：
geometrical-based channel model

multipath fading

angle of arrival

MIMO

capacity

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Adaptive spatial steganography based on the correlation of wavelet coefficients for digital images in spatial domain

DOI：10.16157/j.issn.0258-7998.2016.07.023

Author：Li Ningbo，Pan Feng，Zheng Zhiheng，Li Xiaoce，Liu Jia

Author Affilications：Key Laboratory of CAPF for Cryptology and Information Security，Engineering University of Armed Police Force， Xi′an 710086，China

Abstract：Defining the pixel′s embedding distortion is a key of image adaptive steganography. In order to improve the security of image adaptive steganography, this paper proposes an adaptive spatial steganography in spatial domain based on the correlation of wavelet coefficients for digital images according to the principle of minimizing a suitable defined distortion. Firstly, one-dimensional high-pass and low-pass filters are used to construct directional filters. Secondly, images are dealed with direction filtering through the direction of horizontal, vertical and diagonal, and the distortion cost function is designed according to the correlation of wavelet coefficients. Finally, the secret message is embedded by Syndrome Trellis Code(STC) according to the pixel′s embedding distortion. The experiment results illustrate that the proposed method can not only make the embedding region focus on the texture regions whose content is complex, but also can resist the common steganalysis detection effectively.

Key word：
adaptive steganography

minimizing the embedding distortion

wavelet coefficient

distortion cost function

STC

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Performance analysis of chaotic spread spectrum based on iterated concatenated map

DOI：10.16157/j.issn.0258-7998.2016.07.024

Author：Yu Yiding，Wang Yongchuan，Wang Changlong

Author Affilications：Unmanned Aerial System Engineering Department，Ordance Engineering College，Shijiazhuang 050003，China

Abstract：Aiming at these problems of simple structure and low complexity of the single-stage chaos map, a new chaos map is proposed based on the iterated concatenation of the modified Logistic map and Chebyshev map, which efficiently expands the secret key space of the chaos system. A new chaotic spread spectrum is acquired by the digital quantization of the new chaos map. By analysing and comparing the properties of the new chaotic spread spectrum with traditional Single-stage chaos sprectrum, it is proved that this new chaotic spread spectrum has a good performance of correlation and balance，better performance of complexity and anti-jamming.

Key word：
chaos

spread spectrum

concatenated map

correlation

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Prioritization scheme design of orthogonal pulse group in time domain based on nonsinusoidal wave function

DOI：10.16157/j.issn.0258-7998.2016.07.025

Author：Liu Xudong1，Mao Zhongyang2，Liu Xiao2，Li Qichao3

Author Affilications：1.Department of Scientific Research，Neusoft Institute，Guangdong，Foshan 528225，China； 2.Department of Electrical and Information Engineering，Naval Aeronautical and Astronautical University，Yantai 264001，China； 3.Training Base of Naval Aeronautical and Astronautical University，Qingdao 266108，China

Abstract：Prolate Spheroidal Wave Functions(PSWF) with the best energy concentration in time and frequency domain have natural advantages in improving spextral efficiency and reducing interference between inter-frequency, and optimization parameters designing of pulse group is a determinant element to the nonsinusoidal communication system based on prolate spheroidal wave function. Spectrum overlapping degree and time-bandwidth product are choosed as typical parameters, and energy efficiency and spectrum efficiency are choosed as main index to analyze the influence of different parameters, on this basis, preferred embodiment is introduced. Theory analysis and simulation show that the modulated signal has a high energy concentration of 99.7% while bandwidth efficiency of the system fast approaching the Nyquist limits 2 Baud/Hz, and the complex rate of system is low.

Key word：
prolate spheroidal wave functions

spectrum overlapping degree

time-bandwidth product

spectrum efficiency

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Research of the correction methods in Hurst estimations

DOI：10.16157/j.issn.0258-7998.2016.07.026

Author：Zhu Linglei1，Yao Yuancheng1，Jiang Jun2，Qin Mingwei1

Author Affilications：1.Robot Technology Used for Special Environment Key Laboratory，School of Information Engineering， Southwest University of Science and Technology，Mianyang 621010，China； 2.Engineering Institute，University of Tibet，Lhasa 850000，China

Abstract：Hurst is an important parameter which can characterize the self similarity of network traffic, accurate estimating the Hurst parameters of the burst traffic can directly affects the network flow control and buffer resource allocation. This paper gives a detail implementation of the four Hurst parameter estimation methods, and proposes modified methods for these four estimation methods. The flour estimations before they are modified and after modified are compared though estimating the self similar traffic on different Hurst parameters, results shows that the relative error of each estimation methods reduced by using the modified method. Among them, the R/S method is reduced by 2 percentage points, and the aggregated variance method decreases by 8 percentage points, the relative error of the periodogram method and the wave estimator is reduced by an order of magnitude.

Key word：
self-similarity

fractal Gaussian noise

Hurst

R/S method

aggressive variance

wave

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Sparse detection algorithm based on GSSK in large-scale MIMO

DOI：10.16157/j.issn.0258-7998.2016.07.027

Author：Chen Fatang，Ding Yueyou，Feng Yongshuai

Author Affilications：Chongqing Key Lab of Mobile Communications，Chongqing University of Posts and Telecommunications，Chongqing 400065，China

Abstract：The features of Generalized Space Shift Keying(GSSK) are that only a few antennas are activated at any time slot and antennas indices are exploited to convey information. Though Maximum Likelihood(ML) detector has optimal detection performance, the computational complexity is extremely high. In order to achieve a better tradeoff between the performance and complexity, this paper improves a novel GSSK detection algorithm based on Compressive Sensing(CS). Simulation results show that the detection performance of the proposed algorithm is similar to ML algorithm and its complexity is about 2% of ML.

Key word：
GSSK

maximum likelihood

sparsity

CS

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Cloud storage based on privacy protection and efficient micro-encryption scheme

DOI：10.16157/j.issn.0258-7998.2016.07.028

Author：Song Ke，Wu Hongjian

Author Affilications：College of Computer Science & Technology，Nanjing Tech University，Nanjing 210000，China

Abstract：For the issues of user attributes uncertainty and openness access structure，which would lead to user information subject to disclosure in cloud storage environment，this paper provides cloud storage based on privacy protection and efficient micro-encryption scheme.Hidding access structure completely, using proxy re-encryption technology into properties revocation mechanisms,while providing the length nothing to do with a number of attributes of the decryption key,a property-based encryption scheme is designed，which is a more safe and efficient for a wide range. The results show that the scheme can achieve flexible access to storage data,increase privacy protection for sensitive information and be suitable for the micro-storage devices which space is constrained.

Key word：
cloud storage

hidding access structure

attributes revocation

privacy protection

micro

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Computer Technology and Its Applications

Error correction of parameter forecasting model of wind farm based on Markov Chain

DOI：10.16157/j.issn.0258-7998.2016.07.029

Author：Gao Shujie，Tian Jianyan，Wang Fang

Author Affilications：College of Information Engineering，Taiyuan University of Technology，Taiyuan 030024，China

Abstract：Focused on the characteristics of randomness and intermittency of wind speed, there are large forecasting errors of parameter models of wind farm. The method of the Markov Chain(MC) is proposed to correct the forecasting error of models. Firstly, the error series between the actual values and the forecasting values of the parameter are obtained. Secondly, the fuzzy C-average clustering is used to divide transfer states, then, state transition probability matrixs are calculated according to the error states. Finally, the correction values of the forecasting error are calculated, and higher forecasting precision is obtained. MC method is used to correct forecasting errors of GRNN model, T-S model and Elman model respectively, and the three kinds of model revised by MC are applied to the simulation experiment research on the different steps of wind speed forecasting of wind tower in a wind farm in Shanxi province. And the correction effects of MC are emphatically discussed. Simulation results show that the proposed error correction method can improve the accuracy of wind speed forecasting of wind tower effectively, which is an effective and useful method for the forecasting models.

Key word：
error correction

Markov Chain

forecasting models

wind speed forecasting

View(9746)

A texture image retrieval approach based on Curvelet correlogram

DOI：10.16157/j.issn.0258-7998.2016.07.030

Author：Li Lei

Author Affilications：Western Business School，Southwestern University of Finance and Economics，Chengdu 610075，China

Abstract：Texture is a ubiquitous feature of image and is easily to be perceived, whereas it is difficult to be described. Texture features of most images contain a wealth of information and texture offers a new clue to image retrieval. In this paper, a new algorithm is presented for texture image retrieval. According to the new algorithm, firstly the Curvelet transform is applied for texture image multi-scale decomposition. Since the coarse scale reflects the contour of image and the fine ones reflect the texture information, different quantization levels are used after threshold processing,and then auto-correlograms of Curvelet coefficients are computed which show the proportion and spatial correlation of different coefficients. Finally, feature vectors are constructed for similarity comparison. Experiments based on Brodatz benchmark database turn out that the new algorithm has an improvement in effectiveness compared with other retrieval methods based on Curvelet in texture image retrieval. By using the new method, image texture features can be expressed better, which leads to the more accurate retrieval.

Key word：
multi-resolution analysis

Curvelet correlogram

texture image retrieval

View(4756)

Research of data allocation problem based on hybrid binary particle swarm & genetic algorithm

DOI：10.16157/j.issn.0258-7998.2016.07.031

Author：Li Shiwen1，Zhang Hongmei1，Zhang Xiangli1，Ban Wenjiao2

Author Affilications：1.Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex Systems， GuiLin University of Electronic Technology，Guilin 541000，China； 2.Key Laboratory of Cognitive Radio & Information Processing, the Ministry of Education， Guilin University of Electronic Technology，Guilin 541000，China

Abstract：In response to the deficiencies of optimal allocation seeking and efficiency in distributed database allocation algorithm, a data allocation method based on hybrid binary particle swarm & genetic algorithm is proposed. The method introduces binary particle swarm optimization algorithm to the data distribution method of improving genetic algorithm, which inherits from binary particle swarm optimal algorithm the feature of speedy and memory ability, and also keeps the global search and mutation capability features of genetic algorithm. The allocation algorithm improves the search efficiency, and gets global optimal solution quickly and efficiently. Experimental results show that the proposed data allocation method is better than the method based on genetic algorithm in global optimal solution searching, and its searching speed is faster than Enumeration and the method based on genetic algorithm.

Key word：
genetic algorithm

binary particle swarm optimization algorithm

data distribution

the search efficiency

optimal solution

View(6224)

ECCC algorithm on image sequences of stem cells

DOI：10.16157/j.issn.0258-7998.2016.07.032

Author：Zhang Ruihua

Author Affilications：School of Physics and Information Engineering，Jianghan University，Wuhan 430000，China

Abstract：For the adherent cells, ECCC(Eleven components Chain Code) is proposed.Firstly the chain code is counted and the corner is detected based on the pre-treated edge binary image. The improved algorithm solves the problem of high computation complexity in the traditional Freeman 8 neighborhood chain code mode by adding a new chain code element that represents the edge inflection point in the chain code. Then the real segmentation points are detected by calculating the chain code difference of the inflection point in the cell edge.Finally, the adherent cells are separated by linear interpolation of real segmentation points. For two adhesion and three adhesion cells,this method is proved by experimental results to have higher computering speed and better denoising performance than traditional chain code method. The success rate of the segmentation algorithm is 100% and 98% respectively and the average consumption time is 0.42 s and 0.67 s respectively. ECCC has certain validity and feasibility in the complex cell image segmentation.

Key word：
image processing

image segmentation

cell adhesion

chain code

View(7718)

Target tracking algorithm based on particle filter and compressive sensing

DOI：10.16157/j.issn.0258-7998.2016.07.033

Author：Yang Fengrui1，2，Liu Ting1，Liu Xiongfeng1

Author Affilications：1.Chongqing University of Posts and Telecommunications，Chongqing 400065，China； 2.Chongqing Chongyou Information Technology(Group) Co.Ltd，Chongqing 400065，China

Abstract：In order to solve the problem of object occlusion and illumination change in the process of target tracking, a target tracking algorithm based on particle filter and compressive sensing is proposed in this paper. The color feature and texture feature are fused to describe the object to improve the robustness of the algorithm under the illumination change and complex environment. The theory of compressive sensing is used to reduce the dimension of the feature, and it can improves the real-time performance of the algorithm. Finally, the target condition is estimated according to the principle of particle filter, and then the target position is obtained. The experimental results show that the algorithm can effectively reduce the running time of the algorithm, and can accurately track the target under occlusion and illumination changes.

Key word：
particle filter

compressive sensing

target occlusion

illumination changes

View(8830)

Power Supply Technology and Its Application

The simulation research on small wind-light complementary system at low temperature in Antarctica

DOI：10.16157/j.issn.0258-7998.2016.07.034

Author：Pei Yujing1，Dou Yinke1，Liu Lei1，Chang Xiaomin2

Author Affilications：1.Institute of Electrical and Power Engineering，Taiyuan University of Technologyb，Taiyuan 030024，China； 2.Water Conservancy Engineering College Taiyuan，Taiyuan University of Technologyb，Taiyuan 030024，China

Abstract：This paper analyses the influence of the small wind-light complementary system at low temperature in the polar region. And then build model of photovoltaic cells and small fan for the maximum power point tracking(MPPT) simulation by imitating Antarctic Kunlun station environments. The simulation results prove that the polar environment have an impact on small wind-light complementary system and verify the validity of the strategy. At last, the paper calculates the capacity of the small wind-light complementary system based on the meteorological data of Antarctic Kunlun station. Results show that small wind-light complementary system can satisfy the load demand.

Key word：
wind-light complementary

Antarctica

maximum power tracking

the calculation of the capacity of the small wind-light complementary system

View(13282)

A new snubber circuit based on PWM inverter

DOI：10.16157/j.issn.0258-7998.2016.07.035

Author：Zhu Xiumin1，Wei Jincheng1，Wei Li1，Long Yong2，Wang Yao2，Cao Taiqiang2

Author Affilications：1.School of Electrical Engineering and Electronic Information，Xihua University，Chengdu 610039，China； 2.School of Electrical and Information Engineering，Southwest University for Nationalities，Chengdu 610041，China

Abstract：The traditional snubber circuit(RCD) consume energy，raising the temperature reducing the life of the switch. This paper presents a new lossless passive sunbber regenerative to achive soft-switching purpose，the energy consumption is solved and energy recovery is achieved.Based on theoretical analysis of the causes of overvoltage when IGBT shut off,and the working principle of RCD and LPSSS,LPSSS circuit provide dv/dt and low switching stresses,energy feedback is achieved and and improve the energy utilization. The simulation show that this method reduce the overvoltage of IGBT to 5.2%,and the feasibility and validity are verified.

Key word：
snubber circuits

PWM inverter

SABER simulation

View(10926)

Study on MPPT of self seeking optimal perturbation method

DOI：10.16157/j.issn.0258-7998.2016.07.036

Author：Wang Chuanchuan1，Sun Xia1，Qian Hui1，Xu Yandong2

Author Affilications：1.Anhui University of Science and Technology，Huainan 232000，China；2.73682 Troops，Xuzhou 221000，China

Abstract：In this paper, we first introduce the basic principle of photovoltaic cells and photovoltaic power generation system, and on this basis of traditional MPPT algorithm research and make further improvement, integration of the constant voltage method, perturbation and observation method has the advantages of, overcome the defect of the given invariant the past the initial voltage value, and a combination of long step perturbation method and the step length perturbation method, put forward a kind of improved self optimization of perturb and observe method. Through the Simulink simulation verify the the method with dynamic response speed, waveform distortion rate is small, and improve the accuracy and stability of the whole system.

Key word：
photovoltaic system

maximum power point tracking

variable step size disturbance

self optimization of voltage

View(21286)

Design of complementary sensitivity PID controller for load frequency control

DOI：10.16157/j.issn.0258-7998.2016.07.037

Author：Wei Lin1，Xiong Jinlong2，Fan Lipan3

Author Affilications：1.Hubei University of technology，Hubei collaborative Innovation Center for High-efficiency Utilization of Solar Energy， Wuhan 430068，China； 2.Maintenance Branch of State Grid Hubei Electronic Power Company，Wuhan 430051，China； 3.Hubei Electronic Power Research Institute of State Grid，Wuhan 430077，China

Abstract：An improved PID controller feedback control structure is proposed based on Relay identification technique for estimating power system dynamics. In this presented control structure, the complementary sensitivity function is adopted to evaluate the influence of load, the transfer function model between system parameters and controller parameters are established, and the controller parameters are obtained by using Laurent series to expand controller transfer function. Based on the model parameters and load disturbance interference, the MATLAB/SIMULINK simulation results show that the designed controller can swiftly settle the system frequency error, the tie-line power error and ACE to zero and have strong anti-interference for load disturbances, and the proposed scheme leads to substantial control performance improvement, especially for the disturbance rejection. Simulation examples are provided to show the superiority of the proposed design method for system performance indexes of transient process, compared with those of traditional PID regulator.

Key word：
load frequency control

PID controller

complementary sensitivity function

Laurent series

View(9728)

Special Column-GJB288A Bus

The technology review of high-speed GJB289A bus

DOI：10.16157/j.issn.0258-7998.2016.07.038

Author：Tian Ze1，2，Wang Jing3，Kou Xuefeng4，Tian Zhen3

Author Affilications：1.AVIC Computing Technique Research Institute，Xi′an 710068，China； 2.Aviation Key Laboratory of Science and Technology on Integrated Circuit and Micro-System Design，Xi′an 710068，China； 3.Xi′an Xiangteng Microelectronics Technology CO.，LTD，Xi′an 710068，China； 4.AVIC Shaanxi Baocheng Aviation Instrument CO.，LTD，Baoji 721006，China

Abstract：GJB289A data bus is mainly used in military equipment field of electronic information, with high transmission reliability, using simple and flexible characteristics, has become China′s air force in active service the main advanced avionics data bus. With the development of avionics systems, standards of GJB289A bus (1 Mb/s) have been unable to meet the demand of high-speed communication development, the need to develop high-speed GJB289A data bus.

Key word：
GJB289A data bus

high-speed

development

View(38616)

Analysis and research of the GJB289A bus application layer protocol

DOI：10.16157/j.issn.0258-7998.2016.07.039

Author：Yang Feng1，2，Liao Yinlong1，2，Wang Xin3，Jiao Fengfeng3

Author Affilications：1.AVIC Computing Technique Research Institute，Xi′an 710068，China； 2.Aviation Key Laboratory of Science and Technology on Integrated Circuit and Micro-System Design，Xi′an 710068，China； 3.Xi′an Xiangteng Microelectronics Technology CO.，LTD，Xi′an 710068，China

Abstract：The GJB289A bus application protocol for data definition,use,and the way of system definition are illustrated, clear the GJB289A data bus system in the process of application data word format and message format definition, media design method, design method of terminal and system control design method for the content, but with the application of the GJB289A data bus system, there is a bus system topology selection,the design of the system bus terminal, bus system control strategy, bus performence assessment and other issues. This article analyze the GJB289A bus protocol of the practical application, the study of bus scheduling policy,the emphasis on improved static bus control protocol(ISBC)application and principle of the GJB289A data bus system development,applied research has played a guiding role.

Key word：
GJB289A data bus

GJB289A bus protocol

bus scheduling policy

ISBC protocol

View(15348)

Research and design of the GJB289A data bus system

DOI：10.16157/j.issn.0258-7998.2016.07.040

Author：Huai Zhihua1，2，Wang Xin3，Lou Xiaoqiang1，2，Zhao Jiangtao3

Author Affilications：1.AVIC Computing Technique Research Institute，Xi′an 710068，China; 2.Aviation Key Laboratory of Science and Technology on Integrated Circuit and Micro-System Design，Xi′an 710068，China； 3.Xi′an Xiangteng Microelectronics Technology CO.，LTD，Xi′an 710068，China

Abstract：With the development of the data bus technology and the widespread application, the system need to consider factors in the process of design is becoming more and more, which not only include cost and transaction of system design, but also include the system applied in the process of technology maturity, stability, reliability, system realtime performance and robustness. In this paper, a high-speed GJB289A data bus system, analyzes the topology design, design of BC、RT、and bus control, the design of key technologies such as bus ICD design, bus communication control table configuration, bus communication simulation，bus test, the bus monitor, remote terminal, repeater, a full range of application solutions, high technical maturity, this system has been a certain type airborne bus communication experiment, stable, reliable, multifunctional and convenience and easy to operate, to provide users with good human interface interface,which can realize high-speed GJB289A bus half physical configuration/simulation/monitor//relay/performance analysis, can assist to complete the airborne avionics, validation, and comprehensive.

Key word：
bus system

ICD design

bus performance

View(15090)

Design of the miniaturization of GJB289A data bus protocol processing SoC chip

DOI：10.16157/j.issn.0258-7998.2016.07.041

Author：Guo Meng1，2，Suo Gaohua3，Huo Weitao1，2，Liu Sha3

Author Affilications：1.AVIC Computing Technique Research Institute，Xi′an 710068，China； 2.Aviation Key Laboratory of Science and Technology on Integrated Circuit and Micro-System Design，Xi′an 710068，China； 3.Xi′an Xiangteng Microelectronics Technology CO.，LTD，Xi′an 710068，China

Abstract：Traditional GJB289A bus node adopted separate devices to realize the corresponding function, thre are varieties, low maintainability, large volume, high power consumption,this design of HKS1553BCRT chips using SoC technology will processor, protocol handler on-chip integration of resources such as memory, can greatly reduce the power consumption of the system is reduced to one eighth of the original, reduced size is reduced to a quarter of the original, reduced weight is reduced to one sixth of the original, and improve the system reliability, the transfer rate of 1~10 Mb/s, satisfy design requirements of the airborne/defense GJB289A bus BC/RT node. HKS1553BCRT chip architecture is expounded in detail in this paper, the function definition,working principle and design method of each module,through multi-level, multiangle, prove chip features stable performance, the chip has been finalize the design process, high maturity, high integration, reliability improved significantly.

Key word：
GJB289A data bus

HKS1553BCRT SoC chip

high level of integration

reliability

View(16120)

The design and realization of 1553 module based on the GJB289A bus system SoC chip

DOI：10.16157/j.issn.0258-7998.2016.07.042

Author：Liu Hang1，2，Zhao Chuan3，Kou Xuefeng4，Li Bo3

Author Affilications：1.AVIC Computing Technique Research Institute，Xi′an 710068，China； 2.Aviation Key Laboratory of Science and Technology on Integrated Circuit and Micro-System Design，Xi′an 710068，China； 3.Xi′an Xiangteng Microelectronics Technology CO.，LTD，Xi′an 710068，China； 4.AVIC Shaanxi Baocheng Aviation Instrument CO.，LTD，Baoji 721006，China

Abstract：The traditional 1553 module was mainly adopted to design of the DIP encapsulation protocol handler，timer and transceiver, PCB board weight big, high power consumption, poor reliability and maintainability,it is difficult to meet the needs of new weapons and equipment of small, low, light and other requirements. This paper proposes a high-speed GJB289A bus based on independent positive(1~10 Mb/s) 1553 module of SoC chip design，software design. This paper expounds the SoC chip based on GJB289A bus 1553 module design and implementation process, and put forward the technical advantages of the module. The module is an integrated terminal SoC chip of GJB289A bus communication equipment，realize the BC/RT function of GJB289A bus. The module has been through a model of unmaned aerial vehicle to finalize the design process, low power consumption, function stable and reliable performance, strong portability, high integration, high maturity, bus design of airborne avionics system, has been successfully used in a variety of models.

2016 No. 07

Publish Date：2016-07-06

ISSN：0258-7998

CN：11-2305/TN

Special Column-Key Techniques of 5G and Algorthm Implement

Key word： 5G application scenario technology requirement key technology View(23306)

Key word： 5G SCMA max-log-MPA FPGA View(35702)

Key word： Polar Codes SC SCL Lazy Copy View(21306)

Key word： F-OFDM out of band leakage(OOB) sub-band filter BLER View(33024)

Key word： UFMC LMS carrier frequency offset inter-carrier interference inter-band Interference View(13088)

Review and Comment

Key word： single event upset SRAM irradiation experiment flight experiment View(16540)

Microelectronic Technology

Key word： DSP FPGA SRIO CPLD View(14426)

Key word： carbon nanotube field effect transistor single-port ternary SRAM multi-valued logic View(8366)

Key word： LED on-time control constant current driving PWM dimming modular circuit View(13852)

Key word： ultra-low energy harvesting circuit voltage converted low-power View(23798)

Key word： testing jitter A/D Converter SNR View(14848)

Key word： network on chip security domain Diffie-Hellman authenticated encryption Galois/Counter Mode View(8104)

Embedded Technology

Key word： full phase FFT-Rife correction algorithm vibrating wire sensors frequency measurement STM32 View(10224)

Key word： RFID handheld passive UHF temperature tag dynamic power matching algorithm CMOS temperature sensor View(9528)

Key word： GPS FPGA Hardware-in-the-Loop Simulink View(15798)

Key word： multi-mode STM32 data acquisition video supervision View(6988)

Measurement Control Technology and Instruments

Key word： gesture recognition feature extraction wearable controller MEMS inertial sensor View(9062)

Key word： FHDS hybrid spread spectrum multi-FPGA TT&C signal acquisition View(17524)

Key word： SOC of Li_ion battery extended Kalman filter algorithm neural network RC equivalent circuit View(16748)

Key word： ICS security Fuzzing MMS vulnerability discovery protocol View(18686)

Key word： STM32 data glove speech recognition sign language translation View(14242)

Communication and Network

Key word： geometrical-based channel model multipath fading angle of arrival MIMO capacity View(15424)

Key word： adaptive steganography minimizing the embedding distortion wavelet coefficient distortion cost function STC View(7976)

Key word： chaos spread spectrum concatenated map correlation View(5704)

Key word： prolate spheroidal wave functions spectrum overlapping degree time-bandwidth product spectrum efficiency View(5036)

Key word： self-similarity fractal Gaussian noise Hurst R/S method aggressive variance wave View(8318)

Key word： GSSK maximum likelihood sparsity CS View(7882)

Key word： cloud storage hidding access structure attributes revocation privacy protection micro View(5376)