Home > Archive > 2016 No. 10

2016 No. 10

Publish Date：2016-10-06
ISSN：0258-7998
CN：11-2305/TN
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Special Column-Electronic Techneque of UAVs

The survey of the development of anti-jamming technology for UAV data link

DOI：10.16157/j.issn.0258-7998.2016.10.001

Author：Ding Wenrui1，2，Huang Wenqian2

Author Affilications：1.Unmanned Systems Research Institute，Beihang University，Beijing 100191，China； 2.School of Electronics and Information Engineering，Beihang University，Beijing 100191，China

Abstract：With the development of UAV data link, the data link of different UAVs from different countries and different UAV platforms are varies, but all of them evolve with the development of communication technology. With the UAV is widely used in military and civilian areas, UAV data link is faced with a series of challenges including shortage of spectrum resources, complex spectrum environment, and interference and jamming, increasing the demand for security, reliability and robustness for UAV data link. To meet these challenges, a variety of anti-jamming technology based on boosting capacity and effectiveness of system, cooperative communication technology and cognitive radio technology is widely studied and applied to UAV data link. This survey mainly discusses issues about the development of UAV data link represented by UAV of American, the challenge of anti-jamming for UAV data link and key technologies for anti-jamming.
Key word：
UAV data link
anti-jamming technique
cooperative communication
cognitive radio
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The design and implementation of IP over CCSDS gateway in UAV TT&C and information transmission system

DOI：10.16157/j.issn.0258-7998.2016.10.002

Author：Zeng Yong1，Dai Hong1，2，Chen Qi1，Zhang Weilin1

Author Affilications：1.No.10 Research Institute of China Electronics Technology Group Corporation，Chengdu 610036，China； 2.The Army Aviation Military Representative Office in Chengdu Area，Chengdu 610036，China

Abstract：In this paper, we discuss the the shortcomings in the presence of existing UAV TT&C and information transmission system which using point-to-point transmission,and discuss the development trend of the space communication at present, combining the characteristics of TT&C and information transmission system with the IP over CCSDS link layer protocol implementation method, this proposed an improved CCSDS package service and performance enhancement gateway implementation technology, Seamless connected the equipment in UAV with ground TT&C and information transmission network, achieved the end to end data exchange. Test results show that this technology can better reduce the IP over CCSDS gateway universal processor resources, reduce the CCSDS frame processing delay jitter, greatly improve the transmission efficiency of TCP protocol on space link.
Key word：
IP over CCSDS
unmanned aerial vehicle
TT&C and information transmission system
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Design and implementation of the automatic tracking platform for the ground terminal antenna of the relay UAV

DOI：10.16157/j.issn.0258-7998.2016.10.003

Author：Yuan Zheng，Yang Yong，Yang Ying

Author Affilications：Department of Information Engineering，Armed Police College of PAP，Chengdu 610213，China

Abstract：In order to realize the dynamic tracking of the ground directional antenna to the relay UAV, ensure the antenna main beam moment on the UAV so that the signal strength of the relay communication is at the optimal value, a blind estimation tracking antenna automatic tracking system based on RSSI is designed and developed. The signal is extracted by Telnet connection, and the Kalman filtering algorithm is used to optimize the antenna RSSI signal; improving the initial capture speed by using rectangular scanning method; the antenna dynamic tracking is completed by using the step "cross" tracking scheme. The hardware and software of the automatic tracking platform are designed and tested. The test results show that the tracking platform has better tracking speed and tracking precision that can satisfy the requirements of automatic tracking to the UAV.
Key word：
UAV
antenna tracking
RSSI
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An improved Fuzzy-PID technology of vehicle attitude control system design

DOI：10.16157/j.issn.0258-7998.2016.10.004

Author：Ma Xiaoshuang，Shi Zhengjin

Author Affilications：Institute of Automation and Electrical Engineering，Shenyang Ligong University，Shenyang 110159，China

Abstract：In order to overcome the inaccuracy of vehicle model and all kinds of random factors in the process of flight of interference, improve the accuracy of vehicle attitude control and stable performance, an improved Fuzzy-PID technology of vehicle attitude control system is proposed, and mathematical simulation is conducted. Decide to adopt PID control or Fuzzy control according to the size of attitude angle. At the same time, introduce the automatic tuning factor n in the Fuzzy controller to modify parameters of the Fuzzy controller on-line, enhance self-tuning capabilities of the parameter online. Experimental simulation results show that the proposed method can eliminate the attitude angle deviation rapidly, improve the static and dynamic characteristics of the system, improve adaptive ability of the vehicle.
Key word：
fuzzy control
PID control
vehicle attitude
tuning factors
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Objection recognition algorithm of UAV based on strong uniqueness binary description

DOI：10.16157/j.issn.0258-7998.2016.10.005

Author：Du Yulong，Li Jianzeng，Zhang Yan，Fan Cong

Author Affilications：Unmanned Aerial Vehicle Engineering Department，Ordnance Engineering College，Shijiazhuang 050003，China

Abstract：Aiming at the serious problem that traditional descriptors have low uniqueness, which results in high error matching rate and poor matching behavior between images, an objection recognition algorithm of UAV based on strong uniqueness binary description is proposed. First, based upon the comparison of BRISK and FREAK sampling model, the parameters are determined which have influence on the model performance. Then the effect of parameters is analyzed to choose optimal ones by theoretical modeling. Finally the model is gained with the combination of biotical principle. On the basis, the images are divided according to the gray levels of pixels and smoothed by different scales of Gaussian, and the proposed sampling pattern is taken into them, the strong distinguished and low correlated keypoints descriptor of original image is chosen through the calculation. Comparative experiments show that the proposed algorithm can not only better overcome the influence of various change of scale, viewpoint, rotation, brightness and noise in the battle reconnaissance images, but fully meet the real-time requirements in battle application.
Key word：
UAV
object recognition
binary descriptor
sampling model
Gaussian distribution
multi-scale sub-image
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Design of control system for four rotor flight platform

DOI：10.16157/j.issn.0258-7998.2016.10.006

Author：Yu Danyi1，Ji Jiahui1，Hao Liguo2

Author Affilications：1.Automation Department，Tianjin University of Technology and Education，Tianjin 300222，China； 2.Engineering Training Center，Tianjin University of Technology and Education，Tianjin 300222，China

Abstract：This design uses Atmega128 single-chip microcomputer as the core, with the help of MPU6050 3 axis acceleration sensors and 3 axis of gyroscope. The collected data gose through Kalman filter. Then by the transformation of the four elements and Euler Angle, we finally solve the problem of four rotors of the aircraft in the air flight attitude. Given desired signal by remote control, compared with the current vehicle's attitude, and then through the system PID automatic adjustment, we eliminate the error between expectations and the actual position, making it good in the take-off and landing and stable hover, finishing all kinds of flight movements in relatively poor conditions. Finally realize the four rotor aircraft flying stability control requirements.
Key word：
Atmega128
MPU6050
Kalman filtering
four elements
Euler angles
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Review and Comment

Review of the power supply technologies oriented to energy harvesting

DOI：10.16157/j.issn.0258-7998.2016.10.007

Author：Chen Yi，Ge Yujia，Nan Yurong

Author Affilications：College of Information Engineering，Zhejiang University of Technology，Hangzhou 310023，China

Abstract：Power supply technologies are much significant for energy harvesting, because any breakthrough of them will bring a fundamental revolution of the energy harvesting technologies. The state of the art of the power supply technologies oriented to energy harvesting is introduced, of which the main research areas include power electronics circuits and integration, power management control methods and circuits, and combination and optimization of multi-source energy harvesting and management systems. The research focuses and some representative solutions in the abovementioned three research areas are mentioned in detail, respectively. Finally, considering commercial demands, it is further pointed out that the future development of the power supply technologies oriented to energy harvesting will continue to focus on the solutions for the key scientific and technical problems, three of which are lower-loss circuit startup with lower voltage input, lower-loss maximum power point(MPP) control with better maximum power point track(MPPT) performance, and better compatibility inside the multi-source energy harvesting and management systems.
Key word：
energy harvesting
power supply technologies
power electronics circuits
power management control methods
MPP control
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Microelectronic Technology

Bias dependent modeling of substrate current of nanoscale MOSFET

DOI：10.16157/j.issn.0258-7998.2016.10.008

Author： Wang Lin，Wang Jun，Wang Dandan

Author Affilications：College of Information Engineering，Southwest University of Science and Technology，Mianyang 621010，China

Abstract：Substrate current is fundamental for electrical analysis of nanoscale MOSFET and also is a prerequidite for integrated circuit design. For the reliability analysis and the design of MOSFET circuits, it is necessary to model the substrate current accurately. Based on hot-carrier effect, this paper established a substrate current model of conventional nanoscale MOSFET, and simulation results from that model match the experimental results well, which validated the accuracy of the model. Meanwhile the simulated relations of substrate current to channel length, bias voltage are obtained and analyzed, showing that the substrate current has obvious channel length and bias dependence.
Key word：
substrate current
nanoscale MOSFET
bias dependence
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Built AHB-PCI test platform based on hardware/software codesign

DOI：10.16157/j.issn.0258-7998.2016.10.009

Author：Liu Huan1，Han Jungang1，Li Maoliang2，Yang Zheng1，Li Ming2，Shi Shaoxu2

Author Affilications：1.School of Computer Science，Xi′an University of Posts and Telecommunications，Xi′an 710121，China； 2.School of Electronic Engineering，Xi′an University of Posts and Telecommunications，Xi′an 710121，China

Abstract：According to AHB-PCI bridge circuits, builted a platform to test its functionality. The platform was based on hardware/software codesign. Hardware consists of two-AHB standard RAM, one as the master to request bus, another as the slave to receive data. Software through the driver to configure the PCI, read and write. Through testing, platform was builted using this method of simulation platform than on the modelsim more secure in the verification correct.
Key word：
AHB
PCI
hardware/software codesign
verification platform
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Design of radiation hardened error detection and correction circuit based on OLS code

DOI：10.16157/j.issn.0258-7998.2016.10.010

Author：Dong Liang

Author Affilications：Institute of Communications and Electronics Engineering，University of Qiqihar，Qiqihaer 161006，China

Abstract：Multiple Cell Upsets(MCUs) caused by radiation is a major issue for memory reliability. An option to protect memories against MCUs is using advanced error correction codes(ECCs) that can correct more than one error. A fault-tolerant scheme is presented to protect a memory from MCUs using orthogonal latin square(OLS) code. The advantage of OLS code is that it is a type of one-step majority logic decodable(OS-MLD) codes, which can be decoded using very simple majority circuit. The scheme has been implemented in Verilog HDL, and it has also been validated by ModelSim simulator.
Key word：
MCUs
ECCs
OLS code
OS-MLD code
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A power amplifier performance enhancement design for LTE applications

DOI：10.16157/j.issn.0258-7998.2016.10.011

Author：Huang Liang，He Quan，Zhang Guohao

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

Abstract：A novel and simple design method to improve the performance of power amplifiers(PAs) for LTE applications is presented. A two-stage class F power amplifier with this approach based on InGaP/GaAs HBT technology has been proposed. The introduced PA used include a third order intermodulation reduction technique, an inter-stage harmonic suppression network and an active bias network with temperature compensation circuit to achieve high linearity. In addition, a class F operation output matching network has been adopted to obtain high efficiency. The fabricated PA shows a gain of 27.5 dB, a 1dB compression of 30 dBm, and a maximum power added efficiency(PAE) of 46%, measured with continuous wave(CW) signals at a supply voltage of 3.4 V and at the frequency of 2.35 GHz. Measured with 10 MHz LTE modulation signals, the PA also exhibits a high linearity of -38.4 dBc UTRAACLR1 at an average output power of 28 dBm.
Key word：
third order intermodulation
interstage harmonic suppression
class F
power amplifier
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Implementations of the pixel cache validation platform based on SystemVerilog language

DOI：10.16157/j.issn.0258-7998.2016.10.012

Author：Yang Zheng1，Han Jungang1，Li Maoliang2，Liu Huan1

Author Affilications：1.School of Computer Science，Xi′an University of Posts & Telecommunications，Xi′an 710121，China； 2.School of Electronic Engineering，Xi′an University of Posts & Telecommunications，Xi′an 710121，China

Abstract：Based on SystemVerilog，build a reusable verification platform for GPU "Firefly 2nd" pixel cache which is the independent research and development of school. The platform can automatically complete the verification process, and print the results to a Linux terminal and file to facilitate the programmer checks to verify the results. Experimental results show that the functional verification coverage verification platform for pixel cache can be 100% and have good reusable, fully and correctly complete RTL-level verification, and effectively improve the efficiency of the verification and quality.
Key word：
pixel cache
verification platform
SystemVerilog
reusable
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Embedded Technology

Research of a hardware-friendly synthetic fingerprint discrimination algorithm

DOI：10.16157/j.issn.0258-7998.2016.10.013

Author：Xu Zhiyong，Tang Genwei，Jiang Xinquan，Chang Sheng

Author Affilications：Department of Microelectronics，School of Physics and Technology，Wuhan University，Wuhan 430072，China

Abstract：Synthetic fingerprint is an emerging forged fingerprint, which makes a great threat to the security of automatic fingerprint identification system(AFIS). A hardware-friendly fingerprint discrimination algorithm aiming at synthetic fingerprint is proposed. The real and synthetic fingerprint′s characteristic factors—gray average and variance features, Harris corner number feature, are extracted to structure feature vectors which are used to train an intelligent computing model by support vector machine′s polynomial kernel function, and this model can discriminate synthetic fingerprints successfully. The algorithm is constructed based on a hardware-friendly idea, which brings the advantages of hardware circuit′s high execution speed into full play. The experiments show that the hardware-friendly algorithm can process and discriminate a synthetic fingerprint image in 18 ms based on Qsys, which greatly shortens the discrimination time compared with the traditional software way. The discrimination accuracy rate is over 97%.
Key word：
hardware-friendly
synthetic fingerprint
discrimination
support vector machine
Qsys
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Design of portable GNSS signal capture and playback system based on ARM and FPGA

DOI：10.16157/j.issn.0258-7998.2016.10.014

Author：Zhang Wanming1，Li Qi1，Li Jinhai2，Wang Feng2，Gao Yu1，Dong Meng1

Author Affilications：1.School of Electronic And Information Engineering，Hebei University of Technology，Tianjin 300401，China； 2.Institute of Microelectronics，Chinese Academy of Sciences，Beijing 100029，China

Abstract：A portable GNSS navigation signal capture and playback system based on ARM and FPGA is designed. This system can capture complex navigation satellite signals, control gain, and provide a specific signal source for navigation receiver testing. This system receives satellite signals via the RF circuit which is converted to a digital IF signal, and then the data is saved to the SATA hard disk after the processing by FPGA. The ARM processor works as a monitor which send commands to the FPGA, controls the FPGA to collect and playback navigation data, and receives the packets from monitoring receiver through serial port, as well as extracts the CNR and draw the histogram. This system is based on embedded Linux, using Qt4 to design graphical user interface. It has the advantage of scalabilityes and portability, and provides a guarantee for the subsequent development. Experimental results show that the quality of signal reach the requirements. The data processing time by ARM processor is between 200 ms and 500 ms which has good probability for real time application.
Key word：
GNSS
FPGA
ARM
capture and playback
embedded Linux
Qt4
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Design of a wrist-worn heart rate meter based on STM32 and PPG technology

DOI：10.16157/j.issn.0258-7998.2016.10.015

Author： Liu Jinsong，Zhu Chunwu，Yang Li

Author Affilications：College of Automation，Wuhan University of Technology，Wuhan 430070，China

Abstract：A kind of anti-noise and wrist-worn wearable cardio tachometer is designed based on STM32 and reflection-type photoplethysmography(PPG) technology. The open up and turn off of the infrared light source are controlled by PWM wave generated by STM32. The light intensity signals acquired by the photoelectric sensor are transformed into electrical signals. After being processed for the circuit of I/V transformation and signal amplifying and filtering, the PPG signals are transmitted to STM32 for further processing. After which the measured heart rate parameter is sent to the LCD via Bluetooth 4.0. In addition, a LMS adaptive filtering algorithm is proposed to filter out the interference noise in PPG signals. Finally, a series of experiments show that the heart rate meter has high measurement accuracy during three kinds of common physical activities(standing, walking and running).
Key word：
STM32
photoplethysmography
wrist-worn
LMS adaptive filtering algorithm
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Multi-component attestation scheme on trusted mobile platform

DOI：10.16157/j.issn.0258-7998.2016.10.016

Author：Li Xiaoce1，2，Pan Xiaozhong1，2，Chen Fei1，2，Li Ningbo1，2

Author Affilications：1.Key Laboratory of Network and Information Security of the PAP，Xi′an 710086，China； 2.Department of Electronic Technology，Engineering University of the PAP，Xi′an 710086，China

Abstract：Focused on the issue that the remote attestation is expensive and not effective on the mobile platform to apply, a remote attestation based on Trusted Execution Environment(TEE) is proposed. The scheme is based on ARM TrustZone technology which is widely used on mobile platform, and could be applied to mostly mobile device without any hardware modify. Making use of the performance advantage on TEE, signature scheme optimized by super increasing sequence was used on to increase scheme efficiency. The experimental result shows that scheme is more efficient than the remote attestation based on attribute-based signature, especially in numerous components.
Key word：
trusted computing
remote attestation
mobile platform
TrustZone
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Design of intelligent power distribution system for ship building industry based on WiFi and STM32

DOI：10.16157/j.issn.0258-7998.2016.10.017

Author：Yang Zhengming，Xu Yiqun

Author Affilications：Provincial Key Laboratory of Naval Architecture & Ocean Engineering，Institute of Marine Engineering， Jimei University，Xiamen 361021，China

Abstract：Due to the chaos of the construction site of the shipbuilding industry, management can not accurately measure the construction site electricity data，leading to energy vulnerability and serious waste of electricity. Taking STM32F407ZET6 as control core, RM04 wireless WiFi module for wireless communication, using RFID as the CR95HF module of the chip, this paper designs a intelligent power distribution system for the ship manufacturing industry. The hardware circuit and software flow of system are introduced. After testing,the power consumption, the card number and the time data indicate that the system can meet the real-time wireless data acquisition and transmission. It has good application prospects in the field of intelligent power distribution system of shipbuilding industry.
Key word：
STM32
information acquisition
RFID
WiFi
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Measurement Control Technology and Instruments

Design and implementation of high speed data acquisition and fiber-optical transmission system

DOI：10.16157/j.issn.0258-7998.2016.10.018

Author：Chen Yibo，Yang Yuhua，Wang Hongliang，Wang Chaojie，Hu Xiaofeng

Author Affilications：Key Laboratory of Instrumentation Science & Dynamic Measurement North University of China，Taiyuan 030051，China

Abstract：For the problem of high speed data acquisition and transmission system in aerospace, radar, communication and other field has a low sampling rate, and the transmission rate is insufficient, this paper designed a high-speed data acquisition and optical fiber transmission system. System takes FPGA as main control chip, uses 8-channel AD9226 acquisition circuit to realize high speed data collection, uses two high speed optical fiber transmission link based on Aurora to realize high speed data transmission, and designs the edge trigger, door control trigger and manual trigger. A large number of experiments show the system stability, high reliability and wide applicable scope, its high sampling rate is 60 MHz，transmission rate can be up to 7.68 Gb/s. At present, the system has been successfully used in a certain type of high speed data recorder.
Key word：
high-speed data acquisition
AD9226
Aurora protocol
high-speed fiber-optical transmission
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Design of multiple isolated Modbus protocol converter

DOI：10.16157/j.issn.0258-7998.2016.10.019

Author：Wu Zhijie，Wang Xinxia，Kong Fanmin，Li Kang

Author Affilications：School of Information Science Engineering，Shandong University，Jinan 250100,China

Abstract：In the industry system, the equipment based on Modbus RTU protocol is widely used,but master control machine doesn′t control multiple equipment isolated through Ethernet. This paper designed a protocol converter in order to solve this problem. Also,it was viable to use the mobile phone to control the equipment. This protocol converter was based on the ARM and HLK-RM04. The Modbus RTU data was converted into TCP data by using the converter. This converter used SLIP protocol to pack the data and ADM2587E to isolate multiple equipment. PC software was also developed，which used Delphi to control the equipment. This design has been applied in the water storage air conditioning control system,and it has a broad prospect in engineering application.
Key word：
ARM
HLK-RM04
ADM2587E
Modbus
SLIP
Delphi
multiple isolated
protocol conversion
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Non-contact location study of automotive collision avoidance system

DOI：10.16157/j.issn.0258-7998.2016.10.020

Author： Tian Haijun，Yang Ting，Zhao Yanghui

Author Affilications：School of Automation Engineering，Northeast Dianli University，Jilin 132000，China

Abstract：Whole design of automotive collision avoidance system is presented by this article based on pulsed flying time according to its measurement mechanism. The hardware and software on vehicles is designed with low speed and close range. The overall structure of the system is composed of laser emission module, laser receiving module and time discrimination unit, by which high precision time digital conversion chip TDC-GP22, high performance STM32 microcontroller as the main controller, SPLLL90_3 semiconductor laser diode and AD500-9 as a receiving photoelectric detector are adopted. Measurement results are read by microcontroller though SPI Interface technology then transmitted to the LCD12864 indicator until they are processed by microcontroller. Based on the driving direction of the car, repulsive force is calculated to change plan path according to range value returned by laser range, by which automotive collision avoidance and alarm problems have been solved effectively.
Key word：
pulsed flying time
high precision
TDC-GP22
automotive collision avoidance
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Wireless transmission module in the application of cable eccentricity detection system

DOI：10.16157/j.issn.0258-7998.2016.10.021

Author：Liu Yanping，Hu Dongyang，Liu Zeyu

Author Affilications：School of Electronic and Information Engineering，Hebei University of Technology，Tianjin 300401，China

Abstract：The wiring mode using the traditional wired connection is more complicated in the ultrasonic data collection and transmission module of the cable eccentricity detection system. A kind of wireless data collection and transmission module based on RF transceiver chip nRF2401 is proposed in this paper, which uses the wireless transmission method solve the limitations of wired transmission. The FPGA chip EP4CE6F17C8 of Altera company is chosen in the system as the control core of the whole module. The hardware interface circuit between FPGA to nRF2401 and TLC549 is designed. The control flows of software for the transmitting and receiving part is introduced in detail. The results show that the module works stably and can achieve the accurate transmission of the data.
Key word：
cable detection
data collection
wireless transmission
FPGA
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The design and implementation of zone order picking system based on electronic tag

DOI：10.16157/j.issn.0258-7998.2016.10.022

Author：Huang Zhuiliang1，Chen Jianxiong2

Author Affilications：1.School of Economics & Management，Fuzhou University，Fuzhou 350116，China； 2.School of Mechanical Engineering and Automation，Fuzhou University，Fuzhou 350116，China

Abstract：The electronic tag technology can effectively improve the efficiency of the order picking system, which is widely used in the distribution center. Firstly, the software and hardware structure of the zone order picking system based on electronic-tagging was investigated under the mode of zone picking. Then a picking system operation model was built. In addition, the two “zone-storage” levels of the database model were developed to implement the system zone configuration function. Furthermore, the order zone state strategy matrix was proposed to control the picking operation and configure the strategy of zone picking online. Finally, the practice shows that the picking system has the advantages of high scalability and flexibility. In the order picking operations, the picking area can be divided into several zones with different sizes and online configuration according to the actual demand for warehousing operation.
Key word：
zone picking
electronic tag
order picking system
state strategy
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Image edge detection based on Sobel algorithm in FPGA implementation

DOI：10.16157/j.issn.0258-7998.2016.10.023

Author：Du Zhengcong1，Ning Longfei2

Author Affilications：1.Electrical Information Engineering College，Panzhihua University，Panzhihua 617000，China； 2.School of Mechanical Engineering，Xihua University，Chengdu 610039，China

Abstract：Aiming at the problem that embedded software can′t meet the digital image real-time processing speed，this thesis puts forward the idea of using hardware accelerators, that is, using FPGA hardware to implement Sobel edge detection algorithm. Through Ping-pong operation,parallel processing data and pipeline design, the processing speed of the algorithm is greatly improved. The hardware design of module ensures the portability and scalability of the system. Finally, this thesis applies Verilog HDL programming to realize the algorithm processing and uses Modelsim and MATLAB to make simulation and verification.
Key word：
FPGA
Sobel edge detection
hardware accelerators
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Active disturbance rejection control for side-slip angle of four in-wheel driven electric vehicle

DOI：10.16157/j.issn.0258-7998.2016.10.024

Author：Chen Rui，Sun He，Song Xinfei，Zhang Qiang

Author Affilications：Department of Aeronautical Electronic Engineering，the First Aeronautical College of Air Force，Xinyang 464000，China

Abstract：The side-slip angle of vehicle has a great influence on stability and safety. The control for four in-wheel independent drive(4WID) electric vehicles side-slip angle is designed. A two layer control model (direct yaw-moment control layer and torque distribution layer) is presented to achieve the high performance control. In the upper layer, a direct yaw-moment controller based on Active Disturbance Rejection Control(ADRC) is built through carefully analyzing the control system. Then the deviation torque is calculated for the purpose of control. In the lower layer, an algorithm is designed to distribute torque to the motor drive systems. In the end, the effectiveness of the controller is examined using a driving simulator system.
Key word：
four in-wheel independent drive
side-slip angle
ADRC
direct yaw-moment control
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Communication and Network

Hybrid-GA based static schedule generation for time-triggered Ethernet

DOI：10.16157/j.issn.0258-7998.2016.10.025

Author：Li Bingqian，Wang Yong，Tan Xiaohu，Liu Da

Author Affilications：Aeronautics and Astronautics Engineering College，Air Force Engineering University，Xi′an 710038，China

Abstract：Time-triggered Ethernet(TTE) has its unique TT traffic schedule to guarantee a global communication scheme. To promote the performance of scheduled TT traffic and create extra space in time domain for further use, this paper introduced genetic algorithm in searching for global solution and proposed a hybrid genetic algorithm(hybrid-GA), which combined bin-packing and genetic algorithm. The problem is transformed into a typical bin-packing model and it is solved with hybrid-GA, which fused both bin-packing algorithm and genetic algorithm. The experiments using hybrid-GA show that the proposed algorithm could effectively satisfy real-time demands and perform well in time slot consuming. Compared to pure genetic algorithm, hybrid-GA converges faster for its local searching ability benefiting by fused bin-packing algorithm.
Key word：
time-triggered Ethernet
schedule
genetic algorithm
bin-packing problem
flexibility
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Research on cognitive joint relay selection and precoding in multi relay network coding algorithm

DOI：10.16157/j.issn.0258-7998.2016.10.026

Author：Song Minghong1，Wu Bo2，Liu Chunxiao3

Author Affilications：1.Institute of Digital Information，Zhejiang Technical Institute of Economics，Hangzhou 310018，China； 2.Modern Education and Technology Center，Zhengzhou University of Industry Technology，Zhengzhou 451199，China； 3.College of Computer and Information Engineering，Zhejiang Gongshang University，Hangzhou 310023，China

Abstract：In the cognitive relay network scenarios, the relay node using the cognitive base station and user perceptions of different common channel for the communication between forwarding data, can improve the spectrum utilization ratio and system throughput. Cooperative communication issues in cognitive radio system is studied in this paper based on AF mode under the joint optimization of relay selection and precoding design scheme. By semi fixed relaxation technique and ignore 1 rank constraint condition, at the same time, the Charnes-Cooper transform, the original optimization problem is transformed into a semi definite programming, semidefinite programming(SDP). Finally, the existing interior point algorithm toolbox CVX is effective to solve the problem. The simulation results show that the proposed precoding scheme can achieve higher average throughput.
Key word：
cognitive radio
cooperative relay
MIMO
pre encoding
convex optimization
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A resource management scheme based on heterogeneous wireless network

DOI：10.16157/j.issn.0258-7998.2016.10.027

Author： Jia Guoqing1，2，Pei Dong2

Author Affilications：1.School of Pyhsics and Electronic Information Engineering，Qinghai University for Nationalities，Xining 810007，China； 2.Shanghai Institue of Microsystem & Information Technology，Chinese Academy of Sciences，Shanghai 200050，China

Abstract：A cloud based HetNet architecture with limited network resources and multiple queues regarding to users′ requirements is presented and two different users′ arrival scenarios with and without burst traffic are studied. Then a novel High Stable dynamic Resource Management Scheme(HS-RMS) for the HetNet is proposed. Specifically, a dynamic backpressure technique based framework for multiple queues′ stability is presented, and then a Lyapunov drift method is applied to keep users′ requirement queues stable. A Hungarian algorithm based allocation scheme is provided to allocate resources to each queue member efficiently. Extensive simulations have been done, and results show that the proposed resource allocation scheme is very robust to keep the queues stable and the overhead is low as compared to conventional proportional fairness or round-robin algorithms.
Key word：
heterogenous network
access control
radio resource allocation
queueing theory
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Timing and frequency synchronization scheme based on CAZAC sequence and its FPGA implementation

DOI：10.16157/j.issn.0258-7998.2016.10.028

Author：Chang Ning，Yan Ruijun，Hu Hanfei

Author Affilications：China Electronics Technology Group Corporation NO.7 Research Institute，Guangzhou 510310，China

Abstract：This paper proposed an OFDM time and frequency synchronization scheme based on CAZAC sequence, and it gave the FPGA implementations of various parts of the algorithm and hardware circuit measured result. First, synchronized symbols are used for timing synchronization with subsection correlation. Then, combining with ML algorithm, coarse frequency estimation is completed. What′s more, integer frequency estimation using the difference between two CAZAC sequences which are transferred to frequency domain is accomplished. At last, fine frequency is estimated by the two CAZAC sequences mentioned before. Simulation results show that the scheme gives very accurate estimates of symbol timing synchronization and fine estimation of frequency with good engineering practicability.
Key word：
OFDM
CAZAC sequence
timing synchronization
frequency synchronization
engineering practicability
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SCF-GAM：Communication gap in Vehicular Ad Hoc Network analytical model

DOI：10.16157/j.issn.0258-7998.2016.10.029

Author：Liu Zhengbo1，Zhu Liang2

Author Affilications：1．Department of Mobile Communications，Telecommunications Engineering， Shijiazhuang Posts and Telecommunications Technical College，Shijiazhuang 050000，China； 2．School of Mathematics and Computer Science，Hebei University，Baoding 071002，China

Abstract：In Vehicular Ad Hoc Network(VANET)，there are generally very few communicating vehicles along a routing path in low traffic density areas. Existing schemes based on the Store-Carry-Forward(SCF) technique have utilized a moving vehicle to bridge the communication gap among disconnected vehicles. Therefore, this paper investigates network performance over multiple communication gaps in SCF-based vehicular routing. To investigate the influence of the transmission range on the end-to-end delivery delay, this paper develops an analytical model to quantify the performance in term of the Laplace transform of the end-to-end delay. Extensive simulation results are presented to validate the proposed model.
Key word：
vehicular ad hoc network
store-carry-forward
communication gap
delay
model
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Computer Technology and Its Applications

Improvement on mode decision process of depth map intra-predicted in 3D-HEVC

DOI：10.16157/j.issn.0258-7998.2016.10.030

Author：Lei Haiwei1，Liu Wenyi1，Wang Anhong2

Author Affilications：1.Key Laboratory of Instrumentation Science & Dynamic Measurement，Ministry of Education，North University of China， Taiyuan 030051，China； 2.School of Electronic Information Engineering，Taiyuan University of Science and Technology，Taiyuan 030024，China

Abstract：The use of depth modelling mode can effectively reduce the artifact effects at the sharp edges of the encoded depth map，and thus improve the encoding quality of the depth map. But it also greatly increase the computational complexity of encoding. In order to reduce the computational complexity，the mode decision process of the depth map intra-predicted and the existing fast mode decision scheme are analyzed. Meanwhile，the usage of depth modelling mode in the case of different block sizes is gathered. Then，the mode decision process is improved based on the characteristic and the size of the block to be encoded. Experimental results show that the improved scheme can effectively accelerate the mode decision process of intra-prediction with negligible coding quality loss.
Key word：
3D-HEVC
depth map coding
intra-predicted
mode decision
View(6428)

Research and implementation of antibiotic fermentation expert diagnosis system

DOI：10.16157/j.issn.0258-7998.2016.10.031

Author：Ding Yuanchao，Long Wei，Li Fugui

Author Affilications：Information Engineering Institute，Nanchang University，Nanchang 330031，China

Abstract：Most of the existing antibiotic fermentation systems do not have the function of automatic diagnosis. In order to improve the automation level of antibiotic fermentation, an expert diagnosis system is put forward. The system combines the characteristics of antibiotic fermentation process by relational database technology to design a generated tree type structure of knowledge base, combined with snort rules in three dimensional linked list structure to optimize the knowledge base, control strategy using efficient hybrid derivation rules, an expert diagnostic system for antibiotic fermentation is gotten finally. The experimental results show that the system can realize the prediction of abnormal condition in the process of antibiotic fermentation, and it is valuable to improve the production target of the antibiotic fermentation rate.
Key word：
antibiotic fermentation
relational database
Snort rule base
expert diagnosis system
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The construction of visual tracking robot

DOI：10.16157/j.issn.0258-7998.2016.10.032

Author： Zhang Ziyang，Sun Zuolei，Zeng Liansun

Author Affilications：College of Information Engineering，Shanghai Maritime University，Shanghai 201306，China

Abstract：The low cost robot Rovio WowWee is employed as the slave machine. With the program deployed on the master machine, the monocular image and infrared data are parsed online, then the specified object is recognized, and the potential feature point is selected by valuing forward-backward consistency error, all these above construct the visual tracking robot system. In order to improve the target tracking performance, the online learning approach, Tracking-Learning-Detection(TLD), is involved. Robot servo control uses PID method. Furthermore, three experiments demonstrate the feasibility of the proposed system. All the demos are implemented by programming on Linux with C++, the code, which can be freely use for research, is available on Github. It has a certain reference value for the research and application.
Key word：
visual tracking
mobile robot
online learning
PID
open source
View(9150)

Image steganography algorithm optimization analysis based on Fisher criterion

DOI：10.16157/j.issn.0258-7998.2016.10.033

Author：Luo Yongyou1，Huang Li2

Author Affilications：1.Modern Education Center，Liuzhou Vocational & Technical College，Liuzhou 545006，China； 2.School of Computer and Communication Engineering，Guangxi University of Science and Technology，Liuzhou 545006，China

Abstract：In view of the distortion of image steganographic function problem of establishing and vehicle model, this paper proposes a Gibbs sampling image steganalysis optimization method based on Fisher criterion. First of all, the paper holds the sub-array segmentation Giibs sampling and STC(Syndrome-trellis code) coding based on the idea of clustering in the field of array in steganographic image segmentation. Then, the method makes full use of sub-matrix image in the direction of the information(including horizontal, vertical and diagonal), with the method of weighted sum given steganographic distortion function, and maintains the high order statistical characteristic images. The paper realizes information embedding by using Gibbs sampling theory, and embeds to minimize distortion of steganographic image as well as the characteristics of the model. The simulation results show that the method in this paper reduces the distortion of the image model，at the same time, it effectively improves the steganographic image classification error, and enhances the security of steganography.
Key word：
image steganography
Gibbs sampling
distortion function
array segmentation
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Power Supply Technology and Its Application

Design of remote controlled multi-channel DC supply powered by PV and gird

DOI：10.16157/j.issn.0258-7998.2016.10.034

Author：Zhu Jingjie1，Cai Hongkun1，Wang Shizhong1，Kang Ning1，Li Chunming2，Zhang Jianjun1

Author Affilications：1.College of Electronic and Optical Engineering，Nankai University，Tianjin 300350，China； 2.AiYiCheng Technologies(Tianjin) Co. Ltd，Tianjin 300071，China

Abstract：Traditional direct current(DC) power supply is normally powered by the grid, and rarely has the remote control function. This paper presents a new design method of multi-channel DC power supply, which adopts joint power strategy of photovoltaic(PV) and grid to reduce the consumption of electric energy and uses wireless control technology to achieve remote control of the power supply. Combining with the application background of the laser range finder, we designed a DC power supply with three-way outputs. This supply can output 70 V~203 V continuous adjustable DC high voltage when the input voltage is 5.5 V~36 V, and its driving ability can meet the needs of the avalanche diode. The test results show that the power supply can achieve remote control of the power supply through the mobile phone, and the output voltage ripple of this supply is small, which can meet the general requirements.
Key word：
photovoltaic power generation
remote control
direct current power supply
direct current high voltage
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Research on the composite frequency tracking strategy of ultrasonic power

DOI：10.16157/j.issn.0258-7998.2016.10.035

Author：Li Changyou，Li Shuaitao，Liu Zun

Author Affilications：School of Mechanical and Power Engineering，Henan Polytechnic University，Jiaozuo 454000，China

Abstract：Aiming at the problem that the ultrasonic power output resonant frequency is fixed and unable to lock the multi-modal resonance of ultrasonic transducer,the paper presents a composite frequency tracking strategy which is based on digital phase-locked frequency tracking technology combined with the way of variable step search current extreme. This strategy integrate the advantages of digital lock-in technique and search current extreme way,sampling loop power system voltage and current phase information through digital phase detector circuit.The control system of ultrasonic power adjust the frequency according to the phase difference and the current extreme value,so as to achieve frequency tracking.This paper established circuit simulation model in Multisim,the experimental results show that the composite frequency tracking strategy can achieve frequency tracking,and dynamic multi-resonant transducer lock mode effectively.
Key word：
frequency tracking
ultrasonic power
digital phase-locked loop
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Research of adaptive magnetically coupled resonant wireless power transfer system

DOI：10.16157/j.issn.0258-7998.2016.10.036

Author：Liu Yicheng，Song Junlin，Tu Haiyan，Zhang Junge，Wu Xing

Author Affilications：School of Electrical Engineering and Information，Sichuan University，Chengdu 610065，China

Abstract：This paper addresses adaptive Magnetically Coupled Resonant Wireless Power Transfer(MCR-WPT) system based on distance detection. Firstly transmission characteristics is analyzed for the MCR-WPT system using coupled mode theory. Subsequently, a class E power amplifier is designed by employing ADS and load-pull technology. Then a high Q highly and integrated resonator is constructed with PCB printed planar spiral inductor. Aiming at the phenomenon of frequency splitting, transmission distance is measured by an ultrasonic sensor, and an adaptive frequency adjustment scheme is proposed to improve transmission efficiency based on Expert Control algorithm. A FPGA processor and Direct Digital Synthesis technology are applied to implement dynamic frequency adjustment. The experimental results show that the transmission efficiency of the proposed scheme is significantly improved in the frequency splitting range compared with a fixed frequency one.
Key word：
wireless power transfer
magnetically coupled resonant
adaptive frequency adjustment
PCB printed planar spiral inductor
direct digital frequency synthesis
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Special Column-ARINC859 Bus Technology

The review of ARINC659 bus technology

DOI：10.16157/j.issn.0258-7998.2016.10.037

Author：Xu Hongjie1，2，Liu Yufeng3，Xia Jie4，Liu Hao1，2

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.Beijing Keeven Aviation Instrument CO.LTD，Beijing 100086，China； 4.Xi′an Xiangteng Microelectronics Technology CO.，LTD，Xi′an 710068，China

Abstract：ARINC659 bus is a multi-drop communication bus，which bases on the timescale drive and could be used to transfer serial data， and the transmission time on the bus is determinate，it also has the features of high fault tolerance and high reliability，and it could meet the technical requirements of the new-type backplane bus for the aviation weapon equipment’s. This paper introduces the background of ARINC659 backplane bus at first，and the technical characteristics are analysed in detail about the topological construction，the system and the principle. Finally，this paper summaries the application of ARINC659 bus，and it lays the foundations for the research in detail and application of ARINC659 bus.
Key word：
ARINC659 bus
integrity
fault tolerance
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A design and implementation of ARINC659 protocol analyzer based on FPGA

DOI：10.16157/j.issn.0258-7998.2016.10.038

Author：Wang Quan1，2，Sun Haiyang3，Shao Zhiyang3，Ma Chao1，2

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 increase of the complexity of the aviation system, it is an important problem that how to effectively monitor the bus data behavior, real-time data analysis, fault diagnosis and location. This paper presents a design of ARINC659 bus analyzer based on FPGA development, which mainly implements ARINC659 bus data monitoring, sampling, storing and fault injection test, can trigger data analysis and access behavior through the communication interface bus，which provides a perfect and reliable testing method for the real-time data analysis of the ARINC659 bus.
Key word：
ARINC659
monitor
analyse
capture
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Analysis and research of ARINC659 bus protocol

DOI：10.16157/j.issn.0258-7998.2016.10.039

Author：Guo Liang1，2，Liu Yufeng3，Zhao Chuan4，Shi Jiatao4

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.Beijing Keeven Aviation Instrument CO.LTD，Beijing 100086，China； 4.Xi′an Xiangteng Microelectronics Technology CO.，LTD，Xi′an 710068，China

Abstract：With the development of aviation system，the data bus between airborne-equipment has a higher request for the high- bandwidth and high real-time. At present，the traditional backplane bus，such as PCI，VME and Compact PCI and so on，can not meet the data communication requirements for the new generation of avionics systems. So a new bus of high reliability，fault tolerance and high integrity is defined，which is based on the existing industrial backplane bus——ARINC659 backplane bus. Aiming at the applications of ARINC659 backplane bus in avionics systems，this paper analyses the characteristics and limitations of the ARINC659 protocol and puts forward the future development and improvement direction. The research has positive significance for the development of ARINC659 backplane bus and the selection of avionics system backplane bus.
Key word：
ARINC659 bus protocol
protocol analysis
protocol features
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Design and realization of ARINC659 bus system

DOI：10.16157/j.issn.0258-7998.2016.10.040

Author：Liu Ningning1，2，Wang Yao3，Suo Gaohua3，Yan Zhe1，2

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：ARINC659 backplane bus is a high level reliability and a fault tolerant cabinet linearity multi-drop communication bus，that the transmission time on bus is determinate. In the avionics electronic systems，it is used on the data transmitting between line replaceable modules. This paper introduces ARINC659 backplane bus system architecture at first，that bases on the technology protocol of the backplane bus，and gives the data bus communication mechanism which accords with the protocol specifications. Then the key technologies are analyzed as a keystone in the designing of ARINC 659 backplane bus. Finally，this paper summaries the feature and application trend of ARINC 659 backplane bus.
Key word：
ARINC659
backplane bus
LRM
avionic system
synchronization mechanism
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Research and design of ARINC659 bus protocol processing chip

DOI：10.16157/j.issn.0258-7998.2016.10.041

Author：Tian Ze1，2，Huai Zhihua1，2，Pei Xijie1，2，Fan Feihu3

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：HK659 chip is the basis and key for ARINC659 backplane bus system，which has been widely used in a new generation airborne electronic system. This paper puts forward the chip’s view of system design with high integrity and high fault tolerance，that bases on a fully understanding and refining the ARINC659 bus protocol and communication mechanism of the ARINC659 backplane bus，and the chip architecture，the principle and the technical enhances are analysed in detail. The chip is a communication processing chip which integrates the rich resources of the PCI host interface，ARINC659 bus protocol consistency，the interface of the command table automatically loading，the clock reset circuit and the on-chip memory，and it owns the proprietary intellectual property rights，that solved the key techniques and the bottleneck of the backplane bus application with high integrity and high fault tolerance.
Key word：
ARINC659 bus
HK659 chip
configurable bus
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Special Column

High Speed Wired Communication Chip

High Performance Computering

Information Flow and Energy Flow in Industrial Digital Transformation

Special Antenna and Radio Frequency Front End

Radar Target Tracking Technology

Key Technologies of 5G-A and 6G

Key Technologies of 5G and Its Evolution

Key Technologies of 5G and Its Evolution

Processing and Application of Marine Target Characteristic Data

Smart Power

Antenna Technology and Its Applications

5G-Advanced and 6G

Smart Agriculture

5G Vertical Industry Application

Microelectronics in Medical and Healthcare

Key Technologies for 6G

Application of Edge Computing in IIoT

Deep Learning and Image Recognization

6G Microwave Millimeter-wave Technology

Radar Processing Technology and Evaluation

Space-Ground Integrated Technology

Industrial Ethernet Network

5G Vertical Industry Application

Innovation and Application of PKS System

FPGA and Artificial Intelligence

5G Network Construction and Optimization

RF and Microwave

Edge Computing

Network and Business Requirements for 6G

5G and Intelligent Transportation

5G R16 Core Network Evolution Technology

Satellite Nevigation Technology

5G R16 Evolution Technology

5G Wireless Network Evolution Technology

5G Network Planning Technology

5G Indoor Coverage Technology

5G MEC and Its Applications

5G Co-construction and Sharing Technology

Expert Forum

5G and Emergency Communication

5G Slicing Technology and Its Applications

Industrial Internet

5G Terminal Key Realization Technology

5G and Artificial Intelligence

5G and Internet of Vehicles

Terahertz Technology and Its Application

Signal and Information Processing

Artificial Intelligence

5G Communication

Internet of Things and the Industrial Big Data

Electronic Techniques of UAV System

Power Electronic Technology

Medical Electronics

Aerospace Electronic Technology

Robot and Industrial Automation

ADAS Technique and Its Implementation

Heterogeneous Computing

2016 IEEE International Conference on Integrated Circuits and Microsystems

ARINC859 Bus Technology

FC Network Technology

Measurement and Control Technology of Bus Network

GJB288A Bus

Key Techniques of 5G and Algorthm Implement

IEEE-1394 Bus

Signal Conditioning Technology of Sensors

AFDX Network Technology

Discrete Signal Processing

Energy-Efficient Computing

Motor control

2012 Altera Electronic Design Article Contest

WeChat shop

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