利用MATLAB对DTMF信号的产生与检测进行模拟仿真，检测端采用Goertzel算法-Use MATLAB to generate DTMF signals for simulation and testing, testing client using Goertzel algorithm

运用FFT技术来综合和分析电话拨号的过程，matlab来分解了这一过程，希望能提供帮助- TOUCHTONE Use FFT to synthesize and analyze telephone dialing The dual tone multi-frequency (DTMF) standard specifies that the tone generated by a button on a telephone key pad is the sum of two sin