一种基于信息几何的矩阵DP-TBD算法  

A Matrix DP-TBD Algorithm Based on Information Geometry

作　　者：赵兴刚[1] 王首勇[1] 郑岱堃[1] 

机构地区：[1]空军预警学院三系重点实验室,湖北武汉430019

出　　处：《电子学报》2017年第4期882-889,共8页Acta Electronica Sinica

基　　金：国家自然科学基金(No.61179014);青年科学基金(No.61302193)

摘　　要：由于单帧相参积累在一些情况下存在较严重的信息损失,且这种损失会随着多帧非相参积累而进一步放大,使得传统动态规划检测前跟踪(DP-TBD)算法的性能下降.本文基于信息几何理论提出了一种矩阵DP-TBD算法,该方法直接利用每个分辨单元的协方差矩阵进行多帧积累,将单帧和多帧积累融为一体,避免了单帧积累存在的信息损失,具有更好的检测和跟踪性能.最后通过仿真实验验证了本文算法的有效性.The coherent accumulation in a single frame usually suffers serious information loss in some cases and it will be even worse through multi-frame incoherent accumulated, influencing the performance of DP-TBD algorithm. A new DP-TBD algorithm is proposed based on information geometry theory which uses the covariance matrix in every resolution cell to implement multi-frame accumulation directly,avoiding the information loss of coherent accumulation in a single frame with better detecting and tracking performance. Finally, the effectiveness of the proposed algorithm is verified by simulation test.

关 键 词：动态规划 检测前跟踪 信息几何 测地线距离 黎曼均值 

分 类 号：TN957.51[电子电信—信号与信息处理]