中文说明：这个有中文注释，看得明白，有较好的参考价值，有详细的注释，包括脚本文件和函数文件形式，包括调制，解调，信噪比计算，使用混沌与分形分析的例程。
English Description：
The Chinese notes, to understand it, have a good reference value, there are detailed notes, including scripts and functions file format, including modulation, demodulation, signal to noise ratio is calculated, using chaotic and fractal analysis routines.