摘要
在阵列输出数据长度一定的情况下,讨论了阵列输出数据时域平滑预处理时-空二维 MUSIC 算法的数学机理及其统计性能分析,得出了最佳时域平滑长度探讨了在信号发生时域或空域兼并时,时-空二维 MUSIC 算法的有效性.计算机模拟与理论分析结果一致.
Provides an analytic performance evaluation of the errors of the direction-of-arrival and Dopoler estimation obtained by the time-space two dimen-sional MUSIC algorithm for preprocessing of temporal smoothing.Explicit asymptotic formulas are derived for the covariances of the estimates.The efficiency of the time-space two dimensional MUSIC algirithm is analysed in the circumstance that signal annexation takes place temporally or spatially Finally,it is illustrated by several test cases that the relative efficiency of the time-space two dimensional MUSIC algorithm is greatly dependent on the number of the temporal smoothing.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1997年第A00期153-161,共9页
Journal of Xidian University
基金
国家自然科学基金资助
关键词
脉冲多普勒雷达
MUSIC算法
雷达
信号处理
the time-space two dimensional MUSIC algorithm
preprocessing of temporal smoothing
signal annexation
asymptotic property
