一种针对目标三维跟踪的多基地雷达系统功率分配算法  

A Power Allocation Approach for 3D Target Tracking in Multistatic Radar Systems

作　　者：严俊坤[1] 戴奉周[1] 秦童[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4期901-907,共7页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60901067;61001212);新世纪优秀人才支持计划(NCET-09-0630);长江学者和创新团队发展计划(IRT0954);中央高校基本科研业务费专项资金联合资助课题

摘　　要：针对实际应用中有效利用多基地雷达系统有限资源的需求,该文提出一种基于目标3维跟踪的功率分配方法。该方法首先推导了目标3维跟踪时均方根误差的贝叶斯克拉美罗下界,并将其作为代价函数进行功率分配。而后,该文用梯度投影算法对由此产生的非线性、凸优化问题进行了求解。仿真结果表明,相对于功率均匀分配的情况,该文提出的功率分配方法能明显提高目标的跟踪精度。For the requirement of making full use of the limited resource in real application, this paper proposes a power allocation scheme for 3D target tracking in nmltistatic radar systems. Firstly, the Bayesian Cramer Rao Lower Bound （BCRLB） for 3D target tracking mean square error is derived and utilized as a criterion for the power allocation ~trategy. Then, the resulting nonlinear convex problem is solved by gradient projection algorithm. Finally, simulation results suggest that the tracking accuracy of the whole system is enormously improved by using the proposed algorithm compared with the results achieved with equal power allocation.

关 键 词：多基地雷达系统 目标3维跟踪 功率分配 

分 类 号：TN953[电子电信—信号与信息处理]