本程序为构造小波信号,主要采用上采样的算法实现.-the procedures for constructing wavelet signals, mainly on the sampling algorithm.

采样率转换程序，程序主体分为上采样与下采样-Sample rate conversion process, the program is divided into the main sampling and down-sampling

经典的二阶矩四阶矩信噪比估计，有不经过上采样、成型滤波和经过上采样、成型滤波的两种版本。加噪方式也分别用了matlab自带函数和自写两种版本。望大家参考。-Second Moment classic SNR estimation fourth moment, there is not through the sampling, the shaping filter and sampled, two versions of shaping filter. Plus noise mode were