通道失配条件下的MUSIC算法性能分析
A PERFORMANCE ANALYSIS OF THE MUSIC ALGORITHM IN THE PRESENCE OF CHANNEL MISMATCHING
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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。
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关键词:
- 通道失配; 方向估计; 自适应阵列
Abstract: 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. -
Pisarenko V F. The retrieval of harmonics from a covariance function. Geophys. J. Roy. Astron. Soc., 1973, 15(1): 247-266.[2]Schmitdt R O, Multiple emitter location and signal parameter estimation. in proc. RADC Spectral Est. Workshop, Rome, NY, 1979,243-258.[3]Stoica P, Nehorai A. MUSIC, maximum likelihood[4]and Cramer-Rao bound. IEEE Trans. on ASSP. 1990, ASSP-37(5): 720-741.[5][4][6]张林让,保铮,张玉洪.通道响应失配对DBF天线旁瓣电平的影响.机载预警雷达技术交流会论文集.北京,1993.4, 181-188.[7]倪晋麟,李振,张光义.通道失配对自适应阵列的影响.现代雷达,1994,16(3): 53-59.[8]Swindlehurst A, Kailath T. A performance analysis of subspace-based methods in the presence of model error: Part I--The MUSIC algorithm. IEEE Trans. on SP. 1992, SP-40(7): 1758-1774. -
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