Detect the specific frequency of input signal Using the Goertzel AlgorithmWatch the video of this program:Path1: http://v.youku.com/v_show/id_XNDQwMDcwNDAw.htmlPath2: http://www.youtube.com/watch?v=sIRVT5iqEVQ原文有大量表示公式的图片,不便转载。请击:原文链接:http://blog.sina.com.cn/s/blog_55a4cddc01017lr4.html