中文说明： 包括脚本文件和函数文件形式，利用自然梯度算法，计算目标和海洋回波的功率谱密度,算法优化非常好，几乎没有循环，实现串口的数据采集，连续相位调制信号(CPM)产生。
English Description：
It includes script file and function file. The natural gradient algorithm is used to calculate the power spectral density of target and ocean echo. The algorithm optimization is very good, and there is almost no cycle. The data acquisition of serial port and the generation of continuous phase modulation (CPM) signal are realized.