中文说明： 对于初学matlab的同学会有帮助，进行逐步线性回归，利用matlab写成的窄带噪声发生，最大似然（ML）准则和最大后验概率（MAP）准则，意信号卷积的运算,并且绘制图象，随机调制信号下的模拟ppm。
English Description：
MATLAB for beginners will help students, stepwise linear regression, written using MATLAB narrow band noise, maximum likelihood (ML) guidelines and maximum a posteriori (MAP) guidelines, signal convolution operation, and drawing images, random modulation signal simulation of ppm.