电子与信息学报
電子與信息學報
전자여신식학보
JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY
2013年
8期
1875-1881
,共7页
严俊坤%纠博%刘宏伟%保铮
嚴俊坤%糾博%劉宏偉%保錚
엄준곤%규박%류굉위%보쟁
多基地雷达系统%多目标跟踪%聚类分配%功率分配
多基地雷達繫統%多目標跟蹤%聚類分配%功率分配
다기지뢰체계통%다목표근종%취류분배%공솔분배
MultiStatic Radar Systems (MSRS)%Multiple target tracking%Cluster allocation%Power allocation
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。
為瞭使多基雷達繫統(MSRS)能動態地協調各部雷達的髮射參數及其所穫得的量測的使用,進而在繫統資源有限的約束下達到更好的性能,該文提齣一種針對多目標跟蹤的 MSRS 聚類與功率聯閤分配算法。首先,該文推導瞭目標跟蹤誤差的貝葉斯剋拉美囉下界(BCRLB)。然後,以最小化多目標總體跟蹤誤差的 BCRLB 為目標,建立瞭包含聚類方式和髮射功率兩箇優化變量的代價函數,併用循環最小化算法和投影梯度算法對這箇雙變量優化問題進行瞭求解。最後,通過倣真實驗驗證瞭提齣算法的有效性。
위료사다기뢰체계통(MSRS)능동태지협조각부뢰체적발사삼수급기소획득적량측적사용,진이재계통자원유한적약속하체도경호적성능,해문제출일충침대다목표근종적 MSRS 취류여공솔연합분배산법。수선,해문추도료목표근종오차적패협사극랍미라하계(BCRLB)。연후,이최소화다목표총체근종오차적 BCRLB 위목표,건립료포함취류방식화발사공솔량개우화변량적대개함수,병용순배최소화산법화투영제도산법대저개쌍변량우화문제진행료구해。최후,통과방진실험험증료제출산법적유효성。
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.