有循环检测，周期性检测，考虑雨衰 阴影 和多径影响，用MATLAB实现动态聚类或迭代自组织数据分析，信号处理中的旋转不变子空间法，连续相位调制信号(CPM)产生，LDPC码的完整的编译码，实现了对10个数字音的识别程。- There are cycle detection, periodic testing, Consider shadow rain attenuation and multipath effects Using MATLAB dynamic clustering or iterative self-organizing data analysis, Signal Processing ESPRIT method, Continuous phase modulation signal (CPM) to produce, Complete codec LDPC code, Realization of 10 digital audio recognition progra.