{"description":"\u524d\u56de\u306e\u8a18\u4e8b\u3068\u540c\u3058\u3067\u3001Sampling Rate\u304c1[Hz]\u3001\u5468\u6ce2\u6570\u304c 1/16, 2/16, 4/16, 8/16[Hz]\u306e\uff14\u901a\u308a\u306e\u30b3\u30b5\u30a4\u30f3\u306e\u6ce2\u5f62\u3092N=16\u70b9\u306eFFT\u3092\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u3001FFT\u306e\u7d50\u679c\u3092real part\u3068imag part\u306b\u5206\u3051\u3066\u8868\u793a\u3057\u307e\u3057\u305f\u3002\u3042\u3068\u3001\u5165\u529b\u6ce2\u5f62\u3092\u30b5\u30a4\u30f3\u306b\u5909\u3048\u3066\u540c\u3058\u3053\u3068\u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3057\u305f\u3002 \u5165\u529b\u6ce2\u5f62\u304ccos\u306e\u5834\u5408\u306b\u306freal part\u306e\u307f\u3001sin\u306e\u5834\u5408\u306b\u306fimag part\u306e\u307f\u306b\u306a\u308b\u3002\u305d\u308c\u306f\u3001\u8907\u7d20\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u306e\u5f0f\u304b\u3089\u3082\u660e\u3089\u304b \u5468\u6ce2\u6570\u30c7\u30fc\u30bf\u306f\u3001Nyquist\u5468\u6ce2\u6570\u3092\u5bfe\u8c61\u306e\u8ef8\u3068\u3057\u3066\u3001real part\u306f\u5076\u5bfe\u79f0\u3001imag part\u306f\u5947\u5bfe\u79f0\u3068\u306a\u308b\u3002Nyquist\u5468\u6ce2\u6570\u306eda\u2026","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/t/toshi532/20120808/20120808164939.jpg","author_name":"toshi532","title":" Matlab\u3067FFT (\u305d\u306e2)","blog_title":"\u30a2\u30ca\u30ed\u30b0LSI\u8a2d\u8a08\u3068\u304b","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftoshi532.hatenadiary.org%2Fentry%2F20120808%2F1344413207\" title=\" Matlab\u3067FFT (\u305d\u306e2) - \u30a2\u30ca\u30ed\u30b0LSI\u8a2d\u8a08\u3068\u304b\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/toshi532/","width":"100%","url":"https://toshi532.hatenadiary.org/entry/20120808/1344413207","provider_url":"https://hatena.blog","blog_url":"https://toshi532.hatenadiary.org/","categories":["LSI"],"provider_name":"Hatena Blog","type":"rich","height":"190","published":"2012-08-08 17:06:47"}