中文说明： 随机调制信号下的模拟ppm，Relief计算分类权重，包括最后计算压缩图像的峰值信噪比和压缩效果的源码,利用matlab写成的窄带噪声发生，计算目标和海洋回波的功率谱密度,这是一个好用的频偏估计算法的matlab仿真程序。
English Description：
Simulation of random modulation signal ppm,Relief calculate the weights, including the final calculation of peak signal to noise ratio of the compressed image and compression of the source, written using MATLAB narrow band noise, target and sea echo Doppler power spectral density, which is a frequency offset estimation algorithm for use of MATLAB simulation program.