实现HHT时间-频率-幅度三维图的一个源代码。-Realize HHT time- frequency- a three-dimensional graph amplitude source code.

这个程序再matlab2012b版本上调试成功，以前在毕业设计的时候在网上找到的资料，希望对大家有用，认知无线电频谱检测技术的研究,有循环检测，周期性检测，仿真程序和结果-This version of the program and then matlab2012b the successful commissioning, the data at the time of graduation design previously found on the Internet, we want t

Including stochastic gradient algorithm, the relative gradient algorithm, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. To achieve the recognition of 10 digital sound.