摘要
本文分析了通道幅相误差对空间目标参数估计算法MUSIC的影响 .推导了幅相误差下空域谱的统计表达式 ,揭示了幅相误差对空域谱影响的机理 .计算机仿真证明了理论分析的正确性 .结果表明 :幅相误差降低了空域谱峰值 ,从而造成方向估计误差 ,也降低了分辨能力 .
This paper presents an analysis of the effect of the amplitude and phase perturbation (modeling error) on the performance of the MUSIC algorithm.The theorectical expression of the statistical spatial spectrum for the case of modeling error existing in the system is derived.The theoretical analysis reveals the relationship between the error of spectrum and the variance of perturbation.The theoretical prediction is validated by computer simulating.The amplitude and phase perturbation decrease the peak values of spectrum and lower the resolution power.The results are of great significance to the array designer.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2000年第6期105-107,共3页
Acta Electronica Sinica
基金
国防科工委基金资助
