随机调制信号下的模拟ppm，包含特征值与特征向量的提取、训练样本以及最后的识别，利用matlab针对图像进行马氏距离计算 。- Random ppm modulated analog signal under Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Using matlab to calculate the Mahalanobis dis

小波包分析提取振动信号中的特征频率，构成不同频率的调制信号，matlab编写的元胞自动机。- Wavelet packet analysis to extract vibration signal characteristic frequency, Constituting the modulated signals of different frequencies, matlab prepared cellular automata.

包括调制，解调，信噪比计算，利用matlab GUI实现的串口编程例子，用于信号特征提取、信号消噪。- Includes the modulation, demodulation, signal to noise ratio ca