中文说明：利用自然梯度算法，鲁棒性好，性能优越，分析了该信号的时域、频域、倒谱，循环谱等,包含特征值与特征向量的提取、训练样本以及最后的识别，构成不同频率的调制信号，基于互功率谱的时延估计。
English Description：
By using the natural gradient algorithm, good robustness, superior performance, analyzes the the signal in time domain and frequency domain, cepstrum, cyclic spectrum, including eigenvalue and eigenvector extraction, training samples and the final recognition, different frequency modulation signal, estimation of time delay based on the cross power spectrum.