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.
出处
《电子学报》
EI
CAS
CSCD
北大核心
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)
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
dynamic programming
track before detection
information geometry
statistic manifold
riemannian mean
