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Maximum Likelihood Estimation Intersection Method for Multi-station Optical and Radar External Ballistic Test Data

  • LUO Chengqiang 1, 2 ,
  • HU Qiuping 2 ,
  • ZHANG Hua 2 ,
  • HU Wenhua 1
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  • 1 Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China
  • 2 Huayin Ordnance Test Center of China, Shaanxi Huayin 714200, China

Received date: 2018-07-18

  Online published: 2025-05-12

Abstract

In external ballistic networking measurement mode, the coordinate precision of the center-guided data rendezvous algorithm cannot meet the requirement of 10 meters and the solving time is more than 50 ms. To solve this problem,this paper proposed a distance-based rendezvous algorithm, which uses a real-time solution method based on solid mesh to obtain the target’s probabilistic position by limiting the space coordinate range of the target to be solved. In the three-dimensional mesh with the initial value as the center and a radius which is 3 times of the accuracy, the maximum vaule of likelihood function in the mesh can be obtained by the ergodic method. The simulation results show that the coordinate solution precision is equivalent to that of multi station least square method. The calculation time of 6-station intersection is better than 15 ms and the precision is higher than 3 m.

Cite this article

LUO Chengqiang , HU Qiuping , ZHANG Hua , HU Wenhua . Maximum Likelihood Estimation Intersection Method for Multi-station Optical and Radar External Ballistic Test Data[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2019 , 39(5) : 27 -30 . DOI: 10.15892/j.cnki.djzdxb.2019.05.007

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Outlines

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