信号处理中的旋转不变子空间法，实现了对10个数字音的识别程序是国外的成品模型，毕业设计有用，仿真效率很高的，搭建OFDM通信系统的框架。- Signal Processing ESPRIT method, Realization of 10 digital audio recognition program Foreign model is finished, Graduation useful High simulation efficiency, Build a framework OFDM communication system.