Home > Archive > 2020 No. 04

2020 No. 04

Publish Date：2020-04-06
ISSN：0258-7998
CN：11-2305/TN
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Special Column-5G Co-construction and Sharing Technology

Research on 5G co-construction and shared voice service solution

DOI：10.16157/j.issn.0258-7998.200190

Author：Li Xiao1，Li Zhijun2，Zhou Yuetian1，Zhu Xuetian3

Author Affilications：1.China Telecom Research Institute，Beijing 102209，China；2.China Telecom Group Co.，Ltd.，Beijing 100033，China； 3.China Unicom Network Technology Research Institute，Beijing 100048，China

Abstract：Co-construction and sharing has become a key measure to improve the quality and reduce the cost of 5G mobile network, while the demand of traditional voice service is the basic business of 5G network construction.In this paper, the voice service solutions under different 5G networking modes are discussed, and the VoLTE voice service capability under the shared networking mode of 5G NSA access network is deeply studied. Two technical solutions, VoLTE being carried in the 4G shared anchor point plot of the contractor or in the belonging 4G plot, are proposed.
Key word：
5G
non-standalone(NSA)
co-construction and sharing
voice over long-term evolution(VoLTE)
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Research on 5G network co-construction and sharing technology

DOI：10.16157/j.issn.0258-7998.200194

Author：Zhang Zhirong1，Li Zhijun2，Chen Jiangang2，Zhang Xin2，Zhu Xuetian3

Author Affilications：1.China Telecom Research Institute，Beijing 102209，China；2.China Telecom Group Co.，Ltd.，Beijing 100033，China； 3.China Unicom Network Technology Research Institute，Beijing 100048，China

Abstract：5G Network has huge investment and high operation cost. Our country actively promotes the construction and sharing of 5G infrastructure to achieve cost reduction and efficiency increase. Chinese operators actively respond to the "5G Leading" strategic requirements put forward by the State Council of China, strive to explore the 5G network co-construction and sharing technology and scheme, and build a national 5G network through "innovation, opening and sharing" to meet the needs of people in different regions and at different stages of development. This paper systematically summarizes the important aspects of 5G network co-construction and sharing from the aspects of 5G network co-construction and sharing strategy, significance, classification, foreign cases, technical solutions, evolution routes, network planning, site construction, 4G/5G coordination and collaboration, and voice solutions etc.
Key word：
5G network
massive MIMO
co-construction and sharing
MOCN
MORAN
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The strategy of interoperation in multi-band networking for 5G NSA RAN sharing of single anchor point

DOI：10.16157/j.issn.0258-7998.200191

Author：Zhao Xiaoyin1，Li Zhijun2，Zhu Xuetian3

Author Affilications：1.China Telecom Research Institute，Beijing 102209，China； 2.China Telecom Group Co.，Ltd.，Beijing 100033，China； 3.China Unicom Network Technology Research Institute，Beijing 100048，China

Abstract：Recently, operators shift to 5G non-Standalone(NSA)and tend to share radio access network(RAN).In view of the current situation, network selection technology considering frequency priority and frequency priority scheduling, which performs as the general strategy for interoperation in multi-band networking for 5G NSA RAN sharing of single anchor point,is presented in this paper. From the perspective of both 2.1G mobile operator radio access network(MORAN) and 1.8G multi-operator core network(MOCN), user reselection and handover strategy are investigated, through which the interoperation in multi-band networking is implemented.
Key word：
5G
NSA
single anchor point
multi-band networking
View(23966)

Research on sharing and evolution of 5G wireless access network

DOI：10.16157/j.issn.0258-7998.200193

Author：Zhou Yuetian1，Li Zhijun2，Chen Jiangang2，Zhang Xin2，Zhu Xuetian3

Author Affilications：1.China Telecom Research Institute，Beijing 102209，China；2.China Telecom Group Co.，Ltd.，Beijing 100033，China； 3.China Unicom Network Technology Research Institute，Beijing 100048，China

Abstract：Co-construction and sharing technology is an effective means to quickly build a 5G network with wide coverage, excellent technology, low investment, good perception and good experience. This paper focuses on the technical scheme of 5G access network co-construction and sharing, studies the advantages and disadvantages of various technical schemes and applicable scenarios, and analyzes the capability and implementation scheme of NSA′s sharing to SA′s sharing, so as to ensure the future competitiveness of 5G shared network.
Key word：
5G
access network sharing
single(double) anchor
independent(shared) carrier
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Review and Comment

New Wi-Fi technology survey after Wi-Fi6

DOI：10.16157/j.issn.0258-7998.191372

Author：Cheng Gang，Yang Zhijie

Author Affilications：Nokia Shanghai Bell Co.，Ltd.，Shanghai 200127，China

Abstract：Wi-Fi6 standard will be major Wi-Fi technology dominated for deployment after 2020. But to support increasing bandwidth requirements and number of access devices per year, Wi-Fi technology and throughput still need to be further developed and improved. This paper will introduce the key technology involved for latest IEEE802.11be standard discussion, describing the major changes on physical and MAC layer, particularly providing the analysis for multi-access point coordination, hybrid automatic repeat request and Wi-Fi full duplex mode. Finally, this paper will introduce the granted progress of latest 6 GHz applied by both new 802.11ax version and 802.11be with related Wi-Fi function impact.
Key word：
802.11ax
Wi-Fi6
802.11be
multi-access point coordination
HARQ
View(11408)

Artificial Intelligence

K-means Weibo topic discovery model based on feature fusion

DOI：10.16157/j.issn.0258-7998.191367

Author：Li Hailei1，Yang Wenzhong1，2，Li Donghao1，Wen Jiebin1，Qian Yunyun1

Author Affilications：1.College of Information Science and Engineering，Xinjiang University，Urumqi 830046，China； 2.National Engineering Laboratory for Public Safety Risk Perception and Control by Big Data(PSRPC)， China Academy of Electronics and Information Technology，Beijing 100041,China

Abstract：Aiming at the shortcomings of high-dimensional sparseness in the short text of Weibo on traditional topic detection methods, a K-means Weibo topic discovery model based on feature fusion was proposed. In order to better express the semantic information of Weibo topics in this paper, the word-pair vector model(Biterm_VSM) co-occurring in sentences is used instead of the traditional vector space model(VSM), and combined with the topic model(Latent Dirichlet Allocation，LDA) to mine the potential semantics of Weibo short text, merging features obtained from the two models, and applying K-means clustering algorithm to discover topics. The Experimental results show that compared with the traditional topic detection method, the model′s adjusted Rand index(ARI) is 0.80, which is 3%~6% higher than the traditional topic detection method.
Key word：
topic detection
Biterm_VSM
LDA
feature fusion
K-means
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An intelligent diagnosis for railway turnout fault

DOI：10.16157/j.issn.0258-7998.191123

Author：Ke Ting1，Ge Xuechun2，Zhang Lidong1，Lv Hui1

Author Affilications：1.College of Science，Tianjin University of Science & Technology，Tianjin 300457，China； 2.Beijing Huatie Information Technology Co.，Ltd.，Beijing 100081，China

Abstract：The traditional turnout fault detection method not only leads to consume a lot of manpower, material resources and financial resources, but also relies on manual experience. With the rapid development of artificial intelligence, designing an intelligent diagnostic system to diagnose the turnout is a key problem. In this paper, an intelligent detection system is proposed, which contains data preprocessing, feature extraction, switch intelligent classifier and more suitable evaluation criterion design. It is simulated by MATLAB, the experimental results on Guangzhou village station switch current data of model W1902# and model W1904# shows that the current intelligent detection method not only has the ability of self-learning, but also can be detected efficiently in the complex changes of the environment, and the recognition time is only 0.04 s, which meets the real-time requirement of railway.
Key word：
railway turnout
fault detection
support vector machine(SVM)
imbalanced datasets
principal component analysis
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Microelectronic Technology

Design of 12-bit 6 GS/s high speed DAC with>63 dB SFDR in InP HBT

DOI：10.16157/j.issn.0258-7998.191424

Author：Wang Ming1，2，Zhang Youtao1，2，3，Ye Qingguo2，Luo Ning2，Li Xiaopeng1，2

Author Affilications：1.Nanjing Electronic Devices Institute，Nanjing 210016，China；2.Nanjing GuoBo Electronics Co.，Ltd.，Nanjing 210016，China； 3.Science and Technology on Monolithic Integrated Circuits and Modules laboratory，Nanjing 210016，China

Abstract：The paper presents a 12 bit 6 GS/s current-steering digital-to-analog converter(DAC) based on a 0.7 μm ft=280 GHz InP heterojunction bipolar transistor(HBT) technology. Current switch uses the new architecture to enlarge output impedance and make it stability. Besides, Deglitch circuit is used in DAC output to eliminate glitches generated during DAC switch flip, which can optimize the spurious-free-dynamic-range(SFDR). Simulation results show that the chip achieves a DNL/INL of 0.75/0.5 LSB respectively. The Deglitch circuit can increase the SFDR of the DAC by 10 dB at high frequencies, and achieve SFDR>63 dB over the whole Nyquist region, greatly improving the dynamic performance of the DAC.
Key word：
digital-to-analog converter(DAC)
current-steering
InP HBT
Deglitch
spurious-free-dynamic-range(SFDR)
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Reconfiurable multi-launch pipeline processing architecture for block cipher

DOI：10.16157/j.issn.0258-7998.200005

Author：Xue Yuqian，Dai Zibin

Author Affilications：Information Engineering University，Zhengzhou 450001，China

Abstract：With the wide application of reconfigurable design technology in the field of cryptography, the existing reconfigurable cryptography system can hardly meet the needs of high-speed communication and equipment miniaturization.Therefore, it is the goal of this paper to design a high performance reconfigurable processing architecture that can flexibly implement block cipher algorithms.Based on the reconfigurable array structure and the multi-launch mechanism, this paper proposes a reconfigurable multi-launch pipeline processing architecture to solve the problems of low throughput and low resource utilization of the reconfigurable cryptography system.This architecture is able to transmit multiple packets in parallel and pipeline processing, and has higher throughput and unit utilization, which greatly improves the algorithm performance of the reconfigurable system.Experiments show that the throughput of AES can reach 3.19 Gb/s under the operating frequency of 350 MHz.Compared with the single-launch structure, its performance improved by about 1.1 times.
Key word：
reconfigurable
array
multi-launch
pipeline
AES
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Design and implement of a 1 GHz to 6 GHz phase interpolator with wideband and high-linearity

DOI：10.16157/j.issn.0258-7998.191333

Author：Liu Ying1，Tian Ze1，2，Lv Junsheng1，2，Shao Gang1，2，Hu Shufan1，Li Jia1

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

Abstract：In order to enhance the performances of clock and data recovery circuit(CDR) in the high speed multichannel serial transceiver system, a novel phase interpolator(PI) circuit used in CDR has been proposed in the paper. It adopts four groups of differential signal and DAC to act on common load resistance, generates complementary thermometer code through digital filter to control DAC output current, realizes phase weight allocation for differential input clock to make 128 times interpolated, and optimizes the differential signal by input stage four phase correction circuit and duty cycle adjustment circuit. This chip is fabricated in 40 nm CMOS process, the simulation results show that PI has good linearity from 1 GHz to 6 GHz, and DNL is no more than 1.4 LSB, INL is no more than 1.5 LSB, and has been successfully applied to a variety of high speed SerDes.
Key word：
phase interpolator
clock and data recovery circuit
linearity
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Measurement Control Technology and Instruments

Research on fuzzing method of stateful network protocol based on Q-learning algorithm

DOI：10.16157/j.issn.0258-7998.191091

Author：Jing Chen1，2，Fu Xiaotong1，Dong Wei2，Zhao Yunfei2

Author Affilications：1.School of Cyber Engineering，Xidian University，Xi′an 710071，China； 2.National Computer System Engineering Research Institute of China，Beijing 102209，China

Abstract：For the current stateful network protocol fuzzing technology, the auxiliary type message repeated interaction affects the test efficiency and ensures the validity of the test case by inputting the corresponding test case according to the state of the protocol entity, so that the message abnormality input sequence test cannot be performed. In this paper, a stateful network protocol fuzzing method is designed based on Q-learning algorithm. The auxiliary message of the boot state is not required, and the message abnormality input sequence test can be performed under the premise of ensuring the validity of the test case. Experimental results show that this fuzzing method can significantly improve test efficiency and vulnerability mining capabilities.
Key word：
fuzzing
vulnerability mining
Q-learning algorithm
reinforcement learning
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Design and simulation of wireless charging transmission system based on electromagnetic induction

DOI：10.16157/j.issn.0258-7998.190620

Author：Tian Xiaosong1，Yang Hua2，Cai Xianyun1，Gu Miao3

Author Affilications：1.Zunyi Bozhou Power Supply Bureau，Guizhou Power Grid Co.，Ltd.，Zunyi 563000，China； 2.Zunyi Power Supply Bureau，Guizhou Power Grid Co.，Ltd.，Zunyi 563000，China； 3.Zhuhai Heishi Electrical Automation Technology Co.，Ltd.，Zhuhai 519000，China

Abstract：Aiming at the shortcomings of the existing wired charging mode, such as complex wiring and lack of flexibility, a wireless charging transmission system for electric vehicles is designed. The electromagnetic and circuit parts are studied and designed respectively. The coil model of the wireless charging transmission system is obtained and the coil is manufactured successfully. The design coil is simulated by ANSYS Maxwell software. The inductance coefficient, mutual inductance coefficient and coupling coefficient between coils are obtained. The simulation results verify the feasibility of the design system.
Key word：
electric bicycle
wireless charging
system design
simulation analysis
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Numerical simulation analysis of shock waves in closed cube explosion

DOI：10.16157/j.issn.0258-7998.190974

Author：Guo Tao1，2，Zhang Qiwei1，2，Yuan Jingchao1，2

Author Affilications：1.State Key Laboratory of Electronic Test Technology，North University of China，Taiyuan 030051,China； 2.Key Laboratory of Instrument Science & Dynamic Measurement，Ministry of Education， North University of China，Taiyuan 030051，China

Abstract：In this paper, the damage effect of shock wave on the closed cubic structure is studied. Based on the free-field shock wave theory, the propagation law and characteristics of the explosion shock wave in the closed cube are analyzed, and the conduction formula is derived. By adopting method of the theoretical calculation of the feature points of the cube model and the numerical simulation of LS-DYNA finite element analysis software, the theoretical calculation values and numerical simulation values of the first shock wave over-pressure of different measuring points were compared. The results show that the simulation values of the three characteristic points in the closed cube are consistent with the theoretical calculation values, which can provide a theoretical reference for the selection of the sensor and the arrangement of the measuring points in the actual measurement.
Key word：
explosion shock wave
closed cube
propagation law
LS-DYNA
numerical simulation
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An improved particle filter track-before-detect algorithm

DOI：10.16157/j.issn.0258-7998.190984

Author：Gao Guangshun，Chen Xiao

Author Affilications：National Defense Key Discipline Laboratory of Communication and Information Transmission and Fusion Technology， Hangzhou Dianzi University，Hangzhou 310018，China

Abstract：Aiming at the problem of missed targets that easily occur when there are large differences in signal-to-noise ratio, this paper proposes an improved multi-target dual-layer particle filter track-before-detect algorithm(IM-PF-TBD). The algorithm uses a two-layer particle filter structure. In the target detection layer, the method of tournament selection is used to resample the detected particle group, select multiple particles with large weight differences, and simultaneously detect multiple targets through clustering. The existence probability of weak target in early detection is improved. In addition, the algorithm proposes a particle swarm fusion method for verification of newly discovered targets, which facilitates the removal of false targets after target detection. Simulation results show that the proposed algorithm can effectively improve the detection probability of targets with small signal-to-noise ratio and reduce the target RMSE.
Key word：
particle filter
track-before-detect
multiple target
tournament selection
particle swarm fusion
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Computer Technology and Its Applications

Research on fault diagnosis of solar photovoltaic module based on CNN-LSTM

DOI：10.16157/j.issn.0258-7998.191066

Author：Cheng Qize1，Chen Zehua1，Zhang Yunqin1，Jiang Wenjie2，Liu Xiaofeng1，Shen Liang2

Author Affilications：1.College of Data Science，Taiyuan University of Technology，Taiyuan 030001，China； 2.Jinneng Clean Energy Co.，Ltd.，Taiyuan 030001，China

Abstract：The solar photovoltaic industry has developed rapidly in recent years. Accurate diagnosis of the location and type of PV module faults can improve the efficiency of operation and maintenance personnel. In this paper, a deep learning diagnostic model based on convolutional neural networks-long short term memory(CNN-LSTM) is proposed, which can be used to complete the detection task. In this paper, a fault classification method based on current performance is established. The algorithm firstly designs a feature extraction algorithm based on the layout characteristics of the PV array, and extracts the lateral and vertical features of the PV array current to obtain the spatial and temporal characteristics. The CNN network further extracts the lateral features and compresses the vertical features to solve the problem of single feature types and slow training. Finally, the LSTM neural network is used to complete the fault diagnosis of the PV modules.
Key word：
photovoltaic module
feature extraction
CNN
LSTM
fault diagnosis
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Algorithm of minimum test case set generation using matrix recursion

DOI：10.16157/j.issn.0258-7998.191029

Author：Huang Xiaolun，Wang Dong

Author Affilications：Chongqing Health Information Center,Chongqing 401120，China

Abstract：The algorithm of minimum test case set conforming to MC/DC criterion has important practical value.Firstly,the Boolean expression is transformed into a syntax binary tree,and then the matrix combinational logic operation is used to recurse layer by layer to obtain a complete set of MC/DC minimum test cases.It is proved that the method of matrix combinational logic operation is reasonable and correct.The method can quickly obtain complete MC/DC minimum test case set for nontrivial Boolean expressions,and can also deal with complex Boolean expressions with coupling conditions.
Key word：
MC/DC
test cases
coupling conditions
recursion
algorithms
View(15864)

Fast algorithm for VPx intra-frame compression

DOI：10.16157/j.issn.0258-7998.191074

Author：Hu Jinyan，Song Shaojing

Author Affilications：School of Computer and Information Engineering，Shanghai Polytechnic University，Shanghai 201209，China

Abstract：Aiming at the high complexity of VPx video compression, a fast algorithm is proposed. The nearest sub-block is firstly determined according to the spatial position of the luma sub-block in the macro-block in an image. Then the possible prediction mode of the current sub-block is judged by the best prediction mode of its nearest sub-block, sub-block reconstruction and rate distortion comparison. The final prediction mode for intra-frame compression of the current sub-block can be obtained by introducing the rate-distortion threshold. The experimental results show that this method can effectively reduce the computational complexity including frequency domain transform, quantization, inverse quantization and inverse frequency domain transform caused by the reconstructions in VPx intra-frame compression. Thus, the performance of intra-frame compression is improved while the compression quality is guaranteed.
Key word：
VPx
intra-frame compression
sub-block reconstruction
prediction mode
View(8502)

Signal Processing

State augmentation-based modified iterated extended Kalman filtering

DOI：10.16157/j.issn.0258-7998.190501

Author：Liu Meihong1，Gao Shanfeng1，Li Wei2，Xie Bin3

Author Affilications：1.Department of Automation，Shanxi University，Taiyuan 030006，China； 2.Department of Automation，Taiyuan University of Technology，Taiyuan 030024，China； 3.Mitsubishi Heavy Industries Haier(Qingdao)Air-Conditoners Company，LTD.，Qingdao 266200，China

Abstract：This paper derives a state augmentation-based modified iterated extended Kalman filter(SMIEKF) by making use of the state augmentation technique, in which the state variables are directly augmented with the measurement noise. The improved performance is then demonstrated by a target tracking problem involving radar measurements of an atmospheric re-entry vehicle. Simulation results clearly show that the proposed filtering algorithm exhibits faster convergence rate and better estimate accuracy compared to the modified iterated extended Kalman filter(MIEKF) and traditional extended Kalman filter(EKF).
Key word：
state augmentation
convergence rate
estimation accuracy
modified iterated extended Kalman filter
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Hand gesture recognition using sparse feature based on electromyography signal

DOI：10.16157/j.issn.0258-7998.191336

Author：Li Zhaochun1，Gu Quan1，2，Wang Yucheng2

Author Affilications：1.School of Mechanical and Electrical Engineering，Nanjing Forestry University，Nanjing 210037，China； 2.Changzhou Institute of Advanced Manufacturing Technology，Hefei Institute of Material Sciences， Chinese Academy of Sciences，Changzhou 213000，China

Abstract：Gesture recognition technology based on sEMG is an important research direction in the field of human-computer natural interaction. The key to the realization of gesture recognition technology is how to extract the effective features of sEMG signal. This paper presents an effective method to extract sparse features of sEMG signal for multi-class gesture recognition. In this method, sparse representation is used as a feature extraction tool, and support vector machine(SVM) is used as a classifier to recognize multiple gestures. Firstly, double threshold method is used to detect and segment the active segment of gesture. Secondly, some motion samples are randomly selected to initialize the sparse representation dictionary, and the over-complete dictionary and sparse coefficient are unsupervised updated by KSVD method. Finally, SVM is used to classify sparse coefficient feature vectors to realize recognition of different gestures. Through experimental tests on public database and private database, the results show that the average recognition accuracy of 16 gestures can reach 98.4% by combining sparse features and SVM classification method.
Key word：
surface electromyography
sparse representation
gesture recognition
human-computer interaction
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Power Management

Research on a maximum efficiency and constant voltage output control technology for wireless power transfer system

DOI：10.16157/j.issn.0258-7998.191148

Author：Shen Pengfei，Xie Yue

Author Affilications：Institute of Mechanical and Electrical Engineering，China Jiliang University，Hangzhou 310018，China

Abstract：Aiming at the problems of constant voltage output and maximum efficiency of wireless power transfer technology, a wireless power transfer technology based on energy injection and phase-shifted constant voltage control methods is proposed. Firstly, the characteristic functions such as system voltage gain and transmission efficiency are obtained through circuit analysis. Based on this, a novel control method is designed. By changing both the energy injection duty cycle and phase shift angle of the inverter, both the maximum efficiency and constant voltage output of the system are realized when the load changes. The experimental results verify the feasibility of the proposed technology and the correctness of the theoretical analysis. The overall efficiency of energy injection and phase-shifted constant voltage control method is 3%~10% higher than that of the common phase-shifted constant voltage control method within the whole load variation range. At full load, the overall efficiency reaches 89%.
Key word：
wireless power transfer
energy injection
constant voltage
maximum efficiency
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Time-sharing power supply full-bridge buck mode dual-input DC-DC converter

DOI：10.16157/j.issn.0258-7998.200042

Author：Li Zhaoqin，Chen Daolian

Author Affilications：College of Electrical Engineering，Qingdao University，Qingdao 266071，China

Abstract：In the distributed generation system with multiple new energy joint supply, using a multi-input DC-DC converter instead of multiple single input DC-DC converters can simplify the circuit structure and reduce the cost. The circuit topology, maximum power output energy management control strategy and steady-state principle characteristics of the time-sharing power supply full bridge buck mode dual input DC-DC converter are analyzed and studied. The experimental results are given. The circuit topology is composed of two parallel selection branches and a buck mode converter in cascade. The control strategy indirectly realizes the maximum power output energy management control by controlling the instantaneous value of output current and the ratio of output power of two input sources. The 3 kW double input DC converter designed and developed has the advantages of small volume and weight, low cost and so on, which verifies the correctness and feasibility of the converter.
Key word：
time-sharing power supply
buck full-bridge
dual-input DC-DC converter
energy management
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Special Column

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

FPGA and Artificial Intelligence

Innovation and Application of PKS System

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

License policy