说明：  一个仿真了色噪声的程序源码（文档格式）。色噪声与高斯白噪声不同，有更好的实际意义
(The function essentially simulates the colored noise which essentially is a correlated process and unlike the white noise does not have flat PSD. Although white noise is a realistic process color noise seems more practical and hence it requires correct modeling and simulation.)