GPS和INS组合导航程序，构成不同频率的调制信号，利用自然梯度算法，验证可用，有较好的参考价值，用于信号特征提取、信号消噪，MIMO OFDM matlab仿真。- GPS and INS navigation program, Constituting the modulated signals of different frequencies, Use of natural gradient algorithm, Verification is available, There are good reference value, For feature extraction, signal de-noising, MIMO OFDM matlab simulation.