摘要
本文分析了通道失配对高分辨率谱估计算法(MUSIC)的影响.推导了通道失配与方向估计误差的关系表达式,给出了Cramer-Rao界和计算机模拟结果。理论和仿真结果表明:通道失配会增大方向估计误差,使其性能变坏。
This paper presents the performance analysis of the MUSIC algorithm in the presence of channel mismatching. Theoretical expression for the error of DOA estimating with MUSIC algorithm and Cramer-Rao bound are derived. It is compared with simulations performed for some representative cases. The results of theoretical expression and simulation show that existence of channel mismatching will increase the error of DOA estimating and degrade its performance.
关键词
通道失配
方向估计
阵列信号处理
Channel mismatching, Estimation of Direction-of-Arrival(DOA), Adaptive array
