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
卓娅玲 1李响 2左磊 1胡娟1
作者信息
- 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
- 折叠
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.
Abstract
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Key words
multi-target tracking/netted radar/complex scene/power allocation引用本文复制引用
基金项目
国家自然科学基金面上项目(62371379)
国家自然科学基金面上项目(62371447)
出版年
2024
NETL
NSTL
万方数据