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Multi-satellite cooperative observation method based on area target gridding

ZHENG Qicun1,2, YUE Haixia1, LIU Dacheng1,2, LI Hua1,2, REN Mingshan1,2, JIA Xiaoxue1   

  1. 1 Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China;
    2 School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-11-07 Revised:2023-03-06 Online:2023-03-21

Abstract: By analyzing the constraints of using multiple SAR satellites to observe a specific large area target, the constraint satisfaction model is established with the objective function of maximizing the observation profit within a given mission time horizon. To improve the global search ability of the traditional tabu search algorithm, an improved tabu search algorithm with variable neighbourhood is proposed. In the implementation of the tabu search algorithm with variable neighbourhood, the area target is gridded to dynamically generate observation patterns, and the observation rates corresponding to the observation patterns are calculated. Compared to the traditional tabu search algorithm, the variable neighbourhood tabu search algorithm proposed in this paper could increase the observation profit by more than 8% with the same computational burden.

Key words: SAR, multi-satellite cooperation, area target, variable neighbourhood tabu search algorithm

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