详细说明：Goertzel算法是DTMF信号检测的核心，它利用二极点的IIR滤波器计算离散傅立叶变换值，快速有效的提取输入信号的频谱信息。-Goertzel algorithm is the DTMF signal examination core, it uses two extremes the IIR filter computations to be separated Fourier to transform the value, is fast effectively withdraws the input signal the frequency spectrum information.
文件列表:
cal_k.m
decoder.m
generator.m
goertzel_algo.m
GUI.fig
gui.m
ReadME.txt
StringNum.m
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