matlab程序，高阶谱分析，信号谱分析的方法一起就存在了，高价谱分析是当代信号处理的主要工具。--Matlab procedures, higher order spectral analysis, signal spectral analysis method in existence, high spectral analysis of contemporary signal processing major tools.

基于麦克风阵波束形成的谱相减方法在语音增强中的应用-Microphone array beamforming based on the spectral subtraction method speech enhancement application