Journal of Xidian University ›› 2021, Vol. 48 ›› Issue (5): 231-238.doi: 10.19665/j.issn1001-2400.2021.05.026

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A multi-frame track before detect algorithm utilizing measurement space clustering

ZHANG Jiaqi1(),TAO Haihong1(),ZHANG Xiushe2(),HAN Chunlei2()   

  1. 1. National Key Laboratory of Radar Signal Processing,Xidian University,Xi’an 710071,China
    2. The Institute of Xi’an Navigation Technology,Xi’an 710068,China
  • Received:2020-07-21 Online:2021-10-20 Published:2021-11-09

Abstract:

A multi-frame track before detect (TBD) algorithm based on Measurement Space clustering is proposed to solve the high computational complexity problem of the existing multi-frame TBD algorithm in the multiple targets scenario.In the proposed algorithm,a track extrapolation strategy is used to construct an association set among the tracks of continuous data frames,and then a label is constructed according to the association set to obtain the distribution information on multiple targets in the measurement space,a multi-frame measurement points is divided into clusterings,and a multi-frame TBD Algorithm is implemented in each clustering.Simulation result and performance analysis show that the detection performance of the proposed algorithm is comparable to that of the existing multi-frame TBD algorithm,and that the computational complexity is greatly reduced.

Key words: target detection, clustering, track before detect, dynamic programming

CLC Number: 

  • TN953+.7