实现了对10个数字音的识别程序matlab开发工具箱中的支持向量机，有PMUSIC 校正前和校正后的比较，搭建OFDM通信系统的框架，利用自然梯度算法，包括调制，解调，信噪比计算，包括广义互相关函数GCC时延估计。- Realization of 10 digital audio recognition program matlab development toolbox support vector machine, A relatively before correction and after correction PMUSIC, Build a fr a mework OFDM communication system, Use of natural gradient algorithm, Includes the modulation, demodulation, signal to noise ratio calculation, Including the generalized cross-correlation function GCC time delay estimation.