[关键词]
[摘要]
分析了基于小波变换系数极大值原理的小波阈值降噪算法。由于导引头接收信号的信噪比影响了MUSIC超分辨算法的测角精度,因此提出将小波阈值降噪算法用于MUSIC超分辨算法精度分析,并进行了仿真验证,实现了改善信噪比,提高导引头测角精度的目的。
[Key word]
[Abstract]
Based on the theory of wavelet transform coefficient maxima, wavelet thresholding algorithmic to lower noise is analyzed. Because the signal to noise ratio by the seeker taken over influences the precision of measure angle of MUSIC super resolution algorithmic, wavelet thresholding algorithmic to lower noise appling to the precision analysis of MUSIC super resolution algorithmic is proposed. The Simulation results show the signal to noise ratio and the precision of measure angle are improved.
[中图分类号]
TJ765.331
[基金项目]
国防科技预研项目 (99J1.4 .1.JB2 0 0 4 )