随机数据丢包情况下组网雷达功率分配算法  

Power allocation algorithm with random data packet loss in netted radar

作　　者：卓娅玲 李响 左磊[1] 胡娟 ZHUO Yaling;LI Xiang;ZUO Lei;HU Juan(National Key Laboratory of Radar Signal Processing,Xidian University,Xi’an 710071,China;Department of Electronic Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]西安电子科技大学雷达信号处理全国重点实验室,陕西西安710071 [2]清华大学电子工程系,北京100084

出　　处：《系统工程与电子技术》2024年第6期1957-1966,共10页Systems Engineering and Electronics

基　　金：国家自然科学基金面上项目(62371379,62371447)资助课题。

摘　　要：在组网雷达系统中,由于节点间通信信号传播存在路径衰落等问题,雷达量测数据与资源调度数据的传输接收存在随机性。引入随机丢包变量,用以表征数据接收的随机性,建立丢包状态下组网雷达多目标跟踪功率分配模型,推导了该模型多目标跟踪误差期望下界,最终建立了总功率一定条件下,以最小化目标威胁度加权期望跟踪误差下界的数学优化模型,并通过凸优化算法求解。仿真结果表明,与不考虑随机丢包变量的功率分配算法相比,所提算法在多种场景下均能有效提高目标跟踪精度。Due to factors such as path fading in communication signal propagation,the transmission and reception of radar measurement data and resource scheduling data are random in the netted radar system.In this paper,the random packet loss variable is introduced to characterize the randomness of data reception,and the multi-target tracking power allocation model of netted radar under packet loss state is established.The expected lower bound of multi-target tracking error of the model is derived.Finally,a mathematical optimization model is established to minimize the weighted expected tracking error lower bound of the target threat under the condition of certain total power,and solved by the convex optimization algorithm.Simulation results show that the proposed algorithm can effectively improve the target tracking accuracy in various scenarios,compared with the power allocation algorithms without considering the random packet loss variable.

关 键 词：多目标跟踪 组网雷达 复杂场景 功率分配 

分 类 号：TN953[电子电信—信号与信息处理]