航空学报 > 2022, Vol. 43 Issue (1): 324776-324776   doi: 10.7527/S1000-6893.2020.24776

基于合作博弈的组网雷达分布式功率分配方法

靳标, 邝晓飞, 彭宇, 张贞凯   

  1. 江苏科技大学 电子信息学院, 镇江 212000
  • 收稿日期:2020-09-22 修回日期:2020-12-21 出版日期:2022-01-15 发布日期:2020-12-18
  • 通讯作者: 靳标 E-mail:biaojin@just.edu.cn
  • 基金资助:
    国家自然科学基金(61701416,61871203,62001194);江苏省自然科学基金(BK20211341)

Distributed power allocation method for netted radar based on cooperative game theory

JIN Biao, KUANG Xiaofei, PENG Yu, ZHANG Zhenkai   

  1. College of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang 212000, China
  • Received:2020-09-22 Revised:2020-12-21 Online:2022-01-15 Published:2020-12-18
  • Supported by:
    National Natural Science Foundation of China(61701416,61871203,62001194);Natural Science Foundation of Jiangsu Province of China(BK20211341)

摘要: 对于去中心化的雷达网络,由于网络拓扑切换和信息传输延时的存在,各雷达节点给出的全局资源分配方案可能不一致。针对此问题,将合作博弈的思想应用于多目标跟踪场景下的组网雷达节点功率分配问题。首先,将信干噪比(SINR)刻画为目标空间位置和雷达发射功率等参量的函数。然后,将去中心化的组网雷达节点功率分配问题建立为以SINR为特征函数的合作博弈模型。采用加权图的思想改进合作博弈Shapley值的计算方法,以降低其计算复杂度,并基于此提出合作博弈模型的快速求解算法。所提方法无需使用复杂的优化算法,实时性较好。仿真实验分析了不同雷达布阵方式对功率分配结果的影响,通过将不同的功率分配方法与所提方法进行对比,表明所提方法可以明显提升组网雷达的目标跟踪性能。

关键词: 组网雷达, 功率分配, 合作博弈, Shapley值, 多目标跟踪

Abstract: Due to the existence of network topology switching and information transmission delay in the decentralized radar network, the global resource allocation scheme given by each radar node may be inconsistent. To solve this problem, the cooperative game theory is applied to the power allocation of netted radar nodes in multi-target tracking Scenario. Firstly, the Signal to Interference Noise Ratio(SINR) is described as a function of the target spatial position and radar transmitting power. Then, the problem of radar node power allocation in the decentralized network is regarded as a cooperative game model with SINR as the characteristic function. The weighted graph is used to improve the calculation method of the Shapley value of the cooperative game to reduce the computational complexity. A fast algorithm for solving the cooperative game model is then proposed. The proposed method does not need to use the complex optimization algorithm, and has good real-time performance. Simulation results show that the proposed method can significantly improve the target tracking performance of the netted radar.

Key words: netted radar, power allocation, cooperative game, Shapley value, multitarget tracking

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