Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (8): 1710-1717.doi: 10.3969/j.issn.1001-506X.2020.08.10

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Complex ballistic group targets tracking based on adaptive compressed sensing

Qiang HUANG(), Jianguo YU*(), Pengfei SHI()   

  1. Nanjing Research Institute of Electronics Technology, Nanjing 210039, China
  • Received:2019-12-10 Online:2020-07-25 Published:2020-07-27
  • Contact: Jianguo YU E-mail:rador@126.com;yu5203202002@163.com;shipengfeibit@163.com

Abstract:

The complex ballistic group targets are spaced highly close, and they are mutual occlusive. Hence, how to distinguish and precisely track the complex ballistic target under a presented radar working band has become an urgent problem. To solve this problem, an adaptive local compressed sensing (CS) algorithm based cognition for group targets resolution is proposed according to prediction bias with resolution threshold. The algorithm first predicts the group center by two-body movement, then adaptively using local CS algorithm according the threshold to improve the resolving ability for group targets. Secondly, the track segment stitching (TSS) method is induced using track file to construct test hypothesis, then to correlate and smooth the track segments and finally to manage the batch, which can greatly reduce the batch mismatch and nonlinear estimation error. Simulation results show that the proposed algorithm greatly increases the resolving time and the resolving ability raises up to 80%.The average tracking time is double compared with the traditional algorithm, and the tracking root mean square error (RMSE) is significantly decreased during track interrupt. The group targets are consecutively tracking and keep the unique batch, which provides a new precise tracking method for ballistic group targets.

Key words: group target, compressed sensing (CS), track segment stitching (TSS)

CLC Number: 

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