TDOA and track optimization of UAV swarm based on D-optimality

查看全文 作　　者：ZHOU [1]Ronghua;SUN [1]Hemin;LI [1]Hao;LUO [1]Weilin

机构地区：[1]Department of Intelligence,Air Force Early Warning Academy,Wuhan 430019,China

出　　处：《Journal of Systems Engineering and Electronics》索引2020年第31卷第6期,共12页

基　　金：This work was supported by the National Natural Science Foundation of China(61502522);the Equipment Pre-Research Field Fund(JZX7Y20190253036101);the Equipment Pre-Research Ministry of Education Joint Fund(6141A02033703);the Hubei Provincial Natural Science Foundation(2019CFC897). 摘　　要：To solve the problem of time difference of arrival(TDOA)positioning and tracking of targets by the unmanned aerial vehicles(UAV)swarm in future air combat,this paper adopts the TDOA positioning method and uses time difference sensors of the UAV swarm to locate target radiation sources.Firstly,a TDOA model for the target is set up for the UAV swarm under the condition that the error variance varies with the received signal-to-noise ratio.The accuracy of the positioning error is analyzed by geometric dilution of precision(GDOP).The D-optimality criterion of the positioning model is theoretically derived.The target is positioned and settled,and the maximum value of the Fisher information matrix determinant is used as the optimization objective function to optimize the track of the UAV in real time.Simulation results show that the track optimization improves the positioning accuracy and stability of the UAV swarm to the target. 关键词：time difference of arrival(TDOA) unmanned aerial vehicles(UAV)swarm D-OPTIMALITY track optimization

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TDOA and track optimization of UAV swarm based on D-optimality

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