系统工程与电子技术

• 传感器与信号处理 • 上一篇    下一篇

面向目标跟踪的单平台主被动传感器长期调度

单甘霖, 张子宁   

  1. (军械工程学院电子与光学工程系, 河北 石家庄 050003)
  • 出版日期:2014-03-24 发布日期:2010-01-03

Non-myopic sensor scheduling in a single platform for target tracking

SHAN Ganlin, ZHANG Zining   

  1. (Department of Electronic and Optical Engineering, Ordnance Engineering College, Shijiazhuang 050003, China)
  • Online:2014-03-24 Published:2010-01-03

摘要:

以目标跟踪为背景,研究了单平台上主被动传感器的长期调度问题。通过合理、实时地切换主被动传感器,使得有限时域内的跟踪精度和辐射风险达到合理的平衡。将该调度问题构建成部分可观马氏决策过程(partially observable Markov decision process, POMDP)以同步实现目标跟踪和辐射控制。提出以容积采样法估算长期精度收益,以隐马氏模型滤波器推导长期辐射代价。最终将原问题转化成决策树并利用分枝定界法进行求解。仿真结果证明了本方法的有效性。

Abstract:

A non-myopic scheduling problem of how to intelligently and dynamically select active/passive sensors in a single platform for target tracking is studied. The goal is to develop a nonmyopic scheme to make an optimal tradeoff between the tracking accuracy and the radiation risk in a period of time. The problem is formulated as a partially observable Markov decision process (POMDP) to solve target tracking and emission control together. The cubature sampling is proposed to evaluate the longterm accuracy reward, and the longterm radiation cost is derived from the hidden Markov model filter. The original problem is transformed into a decision tree and solved using the branch and bound method. Simulation results demonstrate the effectiveness of the proposed scheduling approach.