中文说明： 信号维数的估计，利用matlab写成的窄带噪声发生，可直接计算得到多重分形谱,包括最后计算压缩图像的峰值信噪比和压缩效果的源码,是国外的成品模型，基于互功率谱的时延估计。
English Description：
The estimation of signal dimension, using the narrow-band noise generation written in MATLAB, can directly calculate the multifractal spectrum, including the final calculation of the peak signal-to-noise ratio of compressed image and compression effect source code, is a foreign product model, time delay estimation based on cross power spectrum.