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Electronics Optics & Control
Contents
2014
Volume: 21 Issue 2
15 Article(s)
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Research Article
Routing and Wavelength Assignment Algorithm of Avionics All-Optical WDM Network
WANG Yan, and XIONG Ying
With the application of the multicasting information flow in the avionics all-optical Wavelength Division Multiplexing (WDM) network, the multicast routing problem was investigated more and more widely.The proper configuration of multicast router can not only make full use of the network resource, but also improve the
With the application of the multicasting information flow in the avionics all-optical Wavelength Division Multiplexing (WDM) network, the multicast routing problem was investigated more and more widely.The proper configuration of multicast router can not only make full use of the network resource, but also improve the communication efficiency of networks.In this paper, a model of avionics all-optical WDM network is built up and the integer linear programming algorithms with the objective of minimum total cost are proposed separately for network schemes with and without wavelength converter.The algorithms are used in NSFNet network topology for multicast routing configuration.The simulation results show that the algorithm can minimize the cost and ensure the real-time capability..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 1 (2014)
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Critical Technologies for Joint Test of Missiles and the Avionic System
WANG Hai-qing, WANG Yan, ZHAN Qiang, and XIE Xiang-jun
The powerful function of modern avionic system is an important guarantee for fighters to accomplish attack missions.The joint test of missiles and the avionic system is a critical step for verifying if they meet the system specification or not before they are installed.The operational flow of joint test for air-to-air
The powerful function of modern avionic system is an important guarantee for fighters to accomplish attack missions.The joint test of missiles and the avionic system is a critical step for verifying if they meet the system specification or not before they are installed.The operational flow of joint test for air-to-air missile and the avionic system is introduced in this paper, and the critical technologies in the test are analyzed in detail..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 5 (2014)
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Research on Positioning Method of Photoelectric Reconnaissance Platform
YANG Song-pu, WANG Yang-zhu, and HU Yong-hao
The positioning theory, error sources and positioning results of a certain type photoelectric reconnaissance platform are presented.Nonlinear least square method was used to estimate the system error and to modify the system.To make the estimation results with strong generalization ability, the system error was assigne
The positioning theory, error sources and positioning results of a certain type photoelectric reconnaissance platform are presented.Nonlinear least square method was used to estimate the system error and to modify the system.To make the estimation results with strong generalization ability, the system error was assigned to azimuth and elevation angle of photoelectric reconnaissance platform.Flight test shows that the positioning accuracy was improved greatly after the system was modified..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 9 (2014)
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The Model and Algorithm for Active/Passive Radar Synergistic Detection and Tracking
ZHOU Feng, ZHANG Liang-liang, WANG Jian-jun, and ZHANG Zhao
To improve the anti-interference and stealth capability of surface-to-air missile system, a synergistic operating mode, i.e., the passive radar tracking system with assistance of active radar, was proposed based on the advantages of both the active and passive radars.A new cooperated detecting and tracking algorithm wa
To improve the anti-interference and stealth capability of surface-to-air missile system, a synergistic operating mode, i.e., the passive radar tracking system with assistance of active radar, was proposed based on the advantages of both the active and passive radars.A new cooperated detecting and tracking algorithm was designed based on the mode.The operation of the active radar was controlled in real time by introducing the fuzzy reasoning function and using the new practical variance and the change rate of measure error variance as input control variables.This method could not only control the active radar precisely and in real time, but also improve the system tracking precision.Monte Carlo simulation demonstrates the rationality of the synergistic operation model and the availability and correctness of the improved algorithm..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 12 (2014)
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Using Semiconductor Laser Scaling Models as Radiation Source in Simulation of Microwave Landing System
HE Jing, WU De-wei, MENG Wen, and MIAO Qiang
It is difficult to choose or produce an appropriate radiation source for electromagnetic environment simulation of Microwave Landing System (MLS).We proposed to use a semiconductor laser with a big scale factor as the simulation model microwave radiation source.The physical similarities between the microwave and the ra
It is difficult to choose or produce an appropriate radiation source for electromagnetic environment simulation of Microwave Landing System (MLS).We proposed to use a semiconductor laser with a big scale factor as the simulation model microwave radiation source.The physical similarities between the microwave and the radiation signal of semiconductor laser, such as the radiation intensity, spectrum characteristics, radiation field and polarization mode etc, were analyzed.A semiconductor laser was used for simulation of MLS radiation source scale model, and simulation of MLS operating process was realized.The result shows the feasibility of this method, which provides a new means for studying large electromagnetic system using small scale model simulation in laboratory..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 17 (2014)
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The 3D Modeling and Visualization of Multi-AEW Radar Cooperative Detection Range
FU Ying, TANG Zi-yue, and SUN Yong-jian
The detection performance of single airborne early warning (AEW) radar is generally constrained by airspace covering blind area and Doppler blind zone (DBZ).A 3D model of the AEW radar detection range was established based on analysis to the airspace covering blind area and DBZ.Simulation results show that the 3D visua
The detection performance of single airborne early warning (AEW) radar is generally constrained by airspace covering blind area and Doppler blind zone (DBZ).A 3D model of the AEW radar detection range was established based on analysis to the airspace covering blind area and DBZ.Simulation results show that the 3D visualization model makes the airspace coverage of AEW radar for the targets at different heights in surveillance area more intuitive, and can produce the dynamic detection range of AEW radar.The multi-AEW radar cooperative detection can not only improve the airspace coverage of the surveillance area, but also make up the DBZ each other..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 22 (2014)
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Distributed Target Tracking in Binary Sensor Network Based on Recursive Centroid Algorithm
ZHOU Hong-bo, WAN Fu, and DING Jing-xiao
One important application of sensor network is in target locating and tracking.The use of binary sensor is a good choice for decreasing transmission consumption.Based on the recursive centroid algorithm and dynamic clustering structure, a distributed recursive centroid algorithm was proposed and used in distributed tar
One important application of sensor network is in target locating and tracking.The use of binary sensor is a good choice for decreasing transmission consumption.Based on the recursive centroid algorithm and dynamic clustering structure, a distributed recursive centroid algorithm was proposed and used in distributed target tracking in binary sensor network.Simulations results show that the new algorithm can track target effectively, decrease energy consumption and computing complexity in the case of high density nodes, large detection range and short sampling period, thus can prolong the lifetime of the network..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 28 (2014)
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A Fault Prediction Approach for Multiple Performance Measures Based on Distance Analysis
ZHANG Guo-long, CAI Jin-yan, LIANG Yu-ying, LV Meng, and LU Gang
The reliability analysis based on performance degradation data has become an effective and economic assessment approach in nowadays.The existed researches mainly limited to one performance measure.However, many products have multiple performance measures.Therefore, we proposed a reliability analysis approach based on m
The reliability analysis based on performance degradation data has become an effective and economic assessment approach in nowadays.The existed researches mainly limited to one performance measure.However, many products have multiple performance measures.Therefore, we proposed a reliability analysis approach based on multivariate distance analysis, and presented the concepts of multiple performance measure distance and failure threshold of distance.A method for solving the weights was also given, which could compensated for shortcoming of complexity of the existed method based on the assumption of multivariate normal joint probability density function.Simulation examples demonstrated the validity of this approach..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 32 (2014)
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Bayesian Estimation Algorithm of UWB Channel Based on the Optimized Sensing Matrix
WANG Ping, RUAN Huai-lin, and FAN Fu-hua
The coherence of sensing matrix may affect seriously the estimation accuracy of Ultra-Wideband (UWB) channel based on Compressive Sensing(CS), thus a method is proposed which combines the optimized sensing matrix with Bayesian algorithm.Taking the cross cumulative coherence as the principle, the optimized sensing matri
The coherence of sensing matrix may affect seriously the estimation accuracy of Ultra-Wideband (UWB) channel based on Compressive Sensing(CS), thus a method is proposed which combines the optimized sensing matrix with Bayesian algorithm.Taking the cross cumulative coherence as the principle, the optimized sensing matrix is obtained by optimizing and regularizing the weighted sensing matrix.Bayesian algorithm is then used to reconstruct the UWB channel.Both the theoretical analysis and the experimental results show that the optimized sensing matrix has weaker coherence compared with the sensing matrix, and the estimation accuracy of UWB channel is improved effectively.At the same time, the UWB communication channel can be accurately reconstructed with low compressive ratio and SNR..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 36 (2014)
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Coning Error Compensation Algorithm Based on Angular Rate Input
XU Zi-feng, LU Yan-e, PANG Chun-lei, and WANG Zhu-xin
In the strap-down inertial navigation system (SINS), if the angular rate is converted into angular incremental and the traditional coning error compensation algorithm based on the angular increment is used, the attitude calculation will have a decreased accuracy and increased calculation cost.To solve the problem, a co
In the strap-down inertial navigation system (SINS), if the angular rate is converted into angular incremental and the traditional coning error compensation algorithm based on the angular increment is used, the attitude calculation will have a decreased accuracy and increased calculation cost.To solve the problem, a coning error compensation algorithm that taking directly the angular rate as input was proposed.The concrete form of the three-sample-algorithm was given in detail.In order to further improve the accuracy and reliability, the algorithm was optimized under the condition of coning motion.The result of the proposed algorithm was compared with that of the analytical method by simulation under the condition of typical coning motion.The simulation result showed that the proposed algorithm is effective, feasible and has higher accuracy..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 41 (2014)
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On Current Research Status of UUV and Its Critical Technologies
XIAO Yu-jie, QIU Zhi-ming, and SHI Zhang-song
The research status and development trend of foreign Unmanned Undersea Vehicle(UUV) are introduced in detail, taking the America military UUV as an example.Then, the domestic studies on UUV are presented.The shape and overall layout of UUVs are described.On which basis, the main bottleneck problems in UUV development a
The research status and development trend of foreign Unmanned Undersea Vehicle(UUV) are introduced in detail, taking the America military UUV as an example.Then, the domestic studies on UUV are presented.The shape and overall layout of UUVs are described.On which basis, the main bottleneck problems in UUV development are pointed out, such as energy and underwater communication..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 46 (2014)
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Function Architecture of UAV CGCS Supporting Network Application
WANG Fang, ZHOU Hai-rui, and SHAO Jing
To be adaptable to the joint operation in the future, the function requirements of Unmanned Aerial Vehicle (UAV) common ground control station (CGCS) that can support network application are analyzed corresponding to the composition and the networked application pattern of CGCS.The function architecture of UAV CGCS und
To be adaptable to the joint operation in the future, the function requirements of Unmanned Aerial Vehicle (UAV) common ground control station (CGCS) that can support network application are analyzed corresponding to the composition and the networked application pattern of CGCS.The function architecture of UAV CGCS under network environment is researched, and some critical technologies are provided..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 50 (2014)
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A Brief Review on Modeling and Simulation in Aircraft Battle Damage Repair Studies
ZHAO Pei-zhong, JI Bo-lin, WEI Hua-kai, DAI Jing-tao, and HU Fang-you
Aircraft Battle Damage Repair (ABDR) is the most effective method to restore and keep the battle effectiveness during the wartime.However, because there is few actual ABDR data in the long peaceful time, the mathematical modeling and simulation technologies were used more and more widely in ABDR studies.The new studies
Aircraft Battle Damage Repair (ABDR) is the most effective method to restore and keep the battle effectiveness during the wartime.However, because there is few actual ABDR data in the long peaceful time, the mathematical modeling and simulation technologies were used more and more widely in ABDR studies.The new studies on modeling and simulation methods of ABDR in the recent years are presented in this paper.With the development of modeling and simulation technologies and ABDR studies, the application is becoming more and more comprehensive and elaborate..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 55 (2014)
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Application of Optocoupler Circuit in EMCCD Power Supply
YU Da, LIU Jin-guo, XUE Xu-cheng, WU Xing-xing, LI Guang-ze, ZHOU Lei, and MEI Gui
In order to meet the special requirements of EMCCD, an EMCCD power supply was designed based on optocouplers characteristics.The isolation of the input and control signals was realized by use of the photoelectric isolation characteristic of the optocoupler.The continuous adjustment of the output voltage was achieved b
In order to meet the special requirements of EMCCD, an EMCCD power supply was designed based on optocouplers characteristics.The isolation of the input and control signals was realized by use of the photoelectric isolation characteristic of the optocoupler.The continuous adjustment of the output voltage was achieved by working in the active region of optocouplers receiving transistor.The power-on initial state was controlled by using the saturation and cutoff characteristics of the optocouplers receiving triode.The high-speed optical receiving diode and totem pole circuit were used to achieve the synchronous control of the DC-DC power.The temperature characteristics of optocoupler circuit were analyzed, and feedback circuits were added to reduce the temperature effects.Experiment results show that:1) the EMCCD power supply designed based on optocoupler can meet the application requirements;and 2) the temperature caused change rate of output voltage is 8.9% of the one before improvement..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 60 (2014)
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Infrared Optical System Design for Imaging Guidance of Image Space Scanning
SUN Lu-lu, LIU Chun-hua, ZHANG Peng, PAN Zhi-feng, and CHEN Jian-fa
A new kind of infrared optical system for imaging guidance of image space scanning is described.The scanning system has the advantages of small size and simple structure, wide FOV for searching and narrow FOV for distinguishing.An infrared optical system was designed.The system has an operating waveband of 3.7~4.8 μm,
A new kind of infrared optical system for imaging guidance of image space scanning is described.The scanning system has the advantages of small size and simple structure, wide FOV for searching and narrow FOV for distinguishing.An infrared optical system was designed.The system has an operating waveband of 3.7~4.8 μm, an effective focal length of 80 mm, the total scanning FOV of ±15° and instantaneous FOV of 5°.The MTF is higher than 0.5 at the spatial frequency of 17 lp/mm across the full FOV.The RMS spot diameter is less than 30 μm.The specifications can meet the requirements of the optical systems..
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Electronics Optics & Control
Publication Date: Jan. 01, 1900
Vol. 21, Issue 2, 65 (2014)
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