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《Electronics Optics & Control》 2007-01
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On multi-target tracking theory and data association algorithm in phased array radar

WANG Lan-yun,ZHAO Yong-jun(Information Engineering Institute,PLA University of Information Engineering,Zhengzhou 450002,China)  
Target tracking theory is introduced briefly, and the process of data association for multi-target tracking of multifunctional phased array radar is presented.Then,a new approach is proposed for dealing with the uncertainty of measurement origin and the disadvantages of probabilistic data association filter(PDAF)and joint probabilistic data association filter(JPDAF).Unlike the probabilistic data association(PDA) which uses all of the validated measurement with different weights(probabilities),and the JPDA algorithm which needs tracking multiple targets by evaluating the measurement-to-track association probabilities and combining them to find the state estimation,the modified method mainly analyzes the influence of common measurements in different gates on path updating.Monte-Carlo simulation results show that the algorithm has a small computation cost and a better real-time tracking performance,so it is fitted to data processing of phased array radar.
【CateGory Index】: TN958.92
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