“包络” 谱图的术语不是对信号处理过程的确切描述，但仍是我们为了简化时所用的术语。 这个ppt描述包络的基本知识-"Envelope" of the spectrum, the term is not precise descr iption of signal processing, but still is when we have to simplify the terminology used. This ppt describes the basics of the enve

现代希尔伯特变换解调分析，一个求包络线和包络谱的程序-Modern Hilbert transform demodulation analysis, a program seeking envelope and envelope spectrum

列文森-杜宾算法,用于语音的线性预测控制中,也可以用于谱包络,,(Levinson - durbin algorithm for linear predictive control, the voice can also be used for spectral envelope,,)