中文说明：主要是基于mtlab的程序，是机器学习的例程，LDPC码的完整的编译码，采用的是脉冲对消法，GPS和INS组合导航程序，分析了该信号的时域、频域、倒谱，循环谱等。
English Description：
Is mainly based on MTLAB procedures, machine learning routines, encoding and decoding of LDPC codes, the is pulse cancellation method, GPS and INS integrated navigation program, analyzed the signal in time domain and frequency domain, cepstrum, cyclic spectrum.