中文说明：这个有中文注释，看得明白，搭建OFDM通信系统的框架，对信号进行频谱分析及滤波，有PMUSIC 校正前和校正后的比较，可以实现模式识别领域的数据的分类及回归，GPS和INS组合导航程序。
English Description：
The Chinese notes, to understand it, build a framework for OFDM communication system, the signal of frequency spectrum analysis and filtering, correction PMUSIC before and after correction of the comparison, can achieve the classification and regression of data in the field of pattern recognition, GPS and INS integrated navigation program.