these are some modification of the spectrum sensing method

source code for spectrum analyisis in matlab

版块是用香浓定理来述说扩频通信时传播原理。并用MATLAB的编程软件去建立一个直接扩频的仿真模型的，在排除其他因素的情况下可以观察曲线和动态图去分析直接扩频的可靠程度-Section in aromatic theorem is used to declare the spread spectrum communication transmission principle. With MATLAB programming software to build a simulation model

matlab音频分析，能够画出元时域图和fft后的图，以及滤波后的fft和倒谱图-Figure matlab audio analysis, time-domain diagram element can be drawn and after fft, fft and filtered and inverted spectrum