一种针对多目标跟踪的多基雷达系统聚类与功率联合分配算法  

Joint Cluster and Power Allocation Algorithm for Multiple Targets Tracking in Multistatic Radar Systems

作　　者：严俊坤[1] 纠博[1] 刘宏伟[1] 保铮[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,西安710071

出　　处：《电子与信息学报》2013年第8期1875-1881,共7页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(61271291;61201285);新世纪优秀人才支持计划(NCET-09-0630);全国优秀博士学位论文作者专项资金(FANEDD-201156);中央高校基本科研业务费专项资金资助课题

摘　　要：为了使多基雷达系统(MSRS)能动态地协调各部雷达的发射参数及其所获得的量测的使用,进而在系统资源有限的约束下达到更好的性能,该文提出一种针对多目标跟踪的MSRS聚类与功率联合分配算法。首先,该文推导了目标跟踪误差的贝叶斯克拉美罗下界(BCRLB)。然后,以最小化多目标总体跟踪误差的BCRLB为目标,建立了包含聚类方式和发射功率两个优化变量的代价函数,并用循环最小化算法和投影梯度算法对这个双变量优化问题进行了求解。最后,通过仿真实验验证了提出算法的有效性。This paper proposes a joint cluster and power allocation algorithm for multiple targets tracking in multistatic radar system.By selecting an optimal subset of radars with predetermined size to cluster around each target and implementing the power allocation strategy among those selected radars,this algorithm can achieves better performance under the resource constraints.Firstly,the Bayesian Cramer Rao Lower Bound（BCRLB） is derived.Then,a criterion minimizing the total BCRLB on the mean square error in multiple targets tracking is derived,and the corresponding optimization problem with two independent vectors is solved by cyclic minimization algorithm incorporating gradient projection method.Finally,the validity of the proposed method is demonstrated with the simulation results.

关 键 词：多基地雷达系统 多目标跟踪 聚类分配 功率分配 

分 类 号：TN953.7[电子电信—信号与信息处理]