Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (10): 3091-3097.doi: 10.12305/j.issn.1001-506X.2023.10.12

• Sensors and Signal Processing • Previous Articles    

Target plot-to-track association method in Doppler blind zone based on multi-dimension assignment

Wei HAN, Guoshi WANG, Kai YAN, Yawei SONG   

  1. Radar Noncommissioned Officer School, Air Force Early Warning Academy, Wuhan 430345, China
  • Received:2021-09-29 Online:2023-09-25 Published:2023-10-11
  • Contact: Wei HAN

Abstract:

The inherent Doppler blind zone (DBZ) of airborne early warning radar can bring out target track termination with the worse effect in multi-target and clutter environment. Based on two-dimension assignment algorithm with DBZ information, a new plot-to-track association method based on multi-dimension assignment algorithm is proposed. Firstly, the evolution information of target track is used enough, and the radar's continuous multi-frame measurement data are used to perform sliding window processing. Secondly, the cost function of multi-dimension assignment is constructed. Finally, the solution of function on the condition of minimal cost is used as the targets plot-to-track assignment solution. The simulation results show that this method has further descent of track termination rate compared with two-dimension assignment algorithm in multi-target and clutter environment with DBZ.

Key words: airborne early-warning radar, Doppler blind zone (DBZ), plot-to-track association, multi-dimension assignment, cost function, track termination rate

CLC Number: 

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