{"id":69,"date":"2023-10-03T23:16:30","date_gmt":"2023-10-03T14:16:30","guid":{"rendered":"http:\/\/arei1126.ddns.net\/mozihakkou\/wordpress\/?p=69"},"modified":"2023-10-03T23:16:30","modified_gmt":"2023-10-03T14:16:30","slug":"%e9%96%8b%e7%99%ba%e6%97%a5%e8%aa%8c-10-3","status":"publish","type":"post","link":"https:\/\/arei1126.ddns.net\/mozihakkou\/wordpress\/?p=69","title":{"rendered":"\u958b\u767a\u65e5\u8a8c 10\/3"},"content":{"rendered":"\n
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WebSofa\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u304c\u3001Coedva+Android\u74b0\u5883\u3067\u554f\u984c\u306a\u304f\u52d5\u4f5c\u3057\u305f\u3002<\/p>\n\n\n\n

\/www\u4ee5\u4e0b\u3092\u5168\u90e8\u30b3\u30d4\u30fc\u3057\u305f\u3089\u305d\u306e\u307e\u307e\u52d5\u3044\u305f\u3002\u7d20\u6674\u3089\u3057\u3044\u3002<\/p>\n<\/div>\n\n\n\n

\n

\u3084\u3063\u3071\u308aWebGL\u3092\u76f4\u63a5\u4f7f\u3046\u306e\u306f\u3084\u3081\u3068\u3053\u3046\u3002<\/p>\n\n\n\n

\u305d\u306e\u4ee3\u308f\u308a\u306bThree.js\u3092\u5229\u7528\u3057\u3088\u3046\u3068\u601d\u3046\u3002<\/p>\n<\/div>\n\n\n\n

\n

C\u8a00\u8a9e\u3067\u306f\u3058\u3081\u308b\u3000\u97f3\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/p>\n\n\n\n

\u97f3\u58f0\u30d5\u30a1\u30a4\u30eb\u306f\u3044\u308f\u305a\u3082\u304c\u306a\u3001\u6642\u9593\u3067\u533a\u5207\u3089\u308c\u305f\u632f\u5e45\u306e\u30c7\u30fc\u30bf\u3067\u3042\u308b\u3053\u3068\u3092\u5ff5\u982d\u306b\u3002\u6ce2\u306e\u8868\u3057\u65b9\u306b\u306f\u3001\u8ef8\u3092\u6642\u9593\u3067\u3068\u308b\u304b\uff08\u6642\u9593\u9818\u57df\u3001\u3042\u308b\u6642\u9593\u306e\u632f\u5e45\u306e\u5927\u304d\u3055\uff09\u5468\u6ce2\u6570\u3067\u3068\u308b\u304b\uff08\u5468\u6ce2\u6570\u9818\u57df\u3001\u3042\u308b\u5468\u6ce2\u6570\u306e\u5f37\u3055\uff09\u306e\uff12\u3064\u306e\u8868\u3057\u65b9\u304c\u3042\u308b\u3002\u6642\u9593\u9818\u57df \uff1d\uff1e\u5468\u6ce2\u6570\u9818\u57df\u306e\u5909\u63db\u3092\u30d5\u30fc\u30ea\u30a8\u5909\u63db \uff08FT\uff09\u305d\u306e\u9006\u3092\u9006\u30d5\u30fc\u30ea\u30a8\u5909\u63db\uff08IFT\uff09\u304c\u62c5\u3046\u3002\u96e2\u6563\u306e\u5834\u5408\u306fDFT, IDFT\u3067\u5b9f\u969b\u306b\u306f\u3088\u308a\u9ad8\u901f\u306b\u8a08\u7b97\u3067\u304d\u308b\u9ad8\u901f\u30d5\u30fc\u30ea\u30a8\u5909\u63db\uff08FFT\uff09\u304c\u4f7f\u308f\u308c\u308b\u3002<\/p>\n\n\n\n

\u30c7\u30a3\u30ec\u30a4\uff08\u3084\u307e\u3073\u3053\uff09\u306e\u3088\u3046\u306a\u3082\u306e\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u30d5\u30a3\u30eb\u30bf\u3092\u5229\u7528\u3059\u308b\u3002\u30d5\u30a3\u30eb\u30bf\u306f\u3001\u8a00\u8449\u306b\u3059\u308c\u3070\u305d\u306e\u4fe1\u53f7\u3088\u308a\u904e\u53bb\u306e\u4fe1\u53f7\u306b\u4f55\u304b\u3057\u3089\u306e\u91cd\u307f\u3064\u3051\u3066\u8db3\u3057\u5408\u308f\u305b\u308b\u3082\u306e\u3002\u3053\u306e\u8a08\u7b97\u3092\u300c\u305f\u305f\u307f\u8fbc\u307f\u300d\u3044\u3046\u3002y(n)=sigma(m=0 to J) b(m)x(n-m)<\/strong> x\u306f\u5165\u529b\u3001y\u306f\u51fa\u529b\u3001n\u306f\u73fe\u6642\u70b9\u3067\u306e\u6642\u523b\u306e\u533a\u5207\u308a\u3001J\u56de\u5206\u306e\u904e\u53bb\u3092\u53c2\u7167\u3059\u308b\u3002b(m)\u306e\u6570\u5217\u304c\u30d5\u30a3\u30eb\u30bf\u3092\u65b9\u5411\u3065\u3051\u308b\u3002\u3053\u306e\u5f62\u306e\u30d5\u30a3\u30eb\u30bf\u3092Finite Impulse Response \u6709\u9650\u30a4\u30f3\u30d1\u30eb\u30b9\u5fdc\u7b54\u30d5\u30a3\u30eb\u30bf\u3068\u3044\u3046\u3002<\/p>\n\n\n\n

\u30a4\u30f3\u30d1\u30eb\u30b9\u3068\u306f\u3001x(0)=1 x(not 0)=0 \u306a\u77ac\u9593\u7684\u306a\u97f3\u30c7\u30fc\u30bf\u3067\u3001\u305d\u308c\u3092\u30d5\u30a3\u30eb\u30bf\u306b\u5165\u529b\u3059\u308b\u3068\u3001b(m)\u304c\u3067\u3066\u304f\u308b\u304b\u3089\u3002\u3069\u3061\u3089\u304b\u3068\u3044\u3046\u3068\u3001\u30a4\u30f3\u30d1\u30eb\u30b9\u5fdc\u7b54\u3092\u8a08\u6e2c\u3057\u305f\u7d50\u679c\u304b\u3089\u30d5\u30a3\u30eb\u30bf\u3092\u4f5c\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u3002<\/p>\n\n\n\n

\u306a\u304a\u3001y(n)=-sigma(m=0 to I) a(m)y(n-m)<\/strong> +<\/strong> sigma(m=0 to J) b(m)x(n-m)<\/strong> \u3068\u3044\u3046\u611f\u3058\u306b\u51fa\u529b\u3082\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3059\u308b\u3082\u306e\u3092Infinite Impulse Response Filter \u3068\u3044\u3046\u3002\u5b9f\u969b\u306f\u3001\u7a93\u95a2\u6570\u3068\u3044\u3046\u9b54\u6cd5\u3067\u3001\u3046\u307e\u3044\u3053\u3068\u7121\u9650\u306e\u8a08\u7b97\u3092\u907f\u3051\u308b\u3089\u3057\u3044\u3002<\/p>\n\n\n\n

\u3068\u3053\u308d\u3067\u3001\u6642\u9593\u9818\u57df\u306ey(n) x(n) b(n) a(n) <\/strong>\u306f\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u3067\u3001 Y(f) X(f) b(f) a(f)<\/strong>\u3068\u5468\u6ce2\u6570\u9818\u57df\u306b\u5909\u63db\u3067\u304d\u308b\u3002\u3053\u308c\u3092\u3059\u308b\u3068FIR\u30d5\u30a3\u30eb\u30bf\u3068IIR\u30d5\u30a3\u30eb\u30bf\u306fY(f)=B(f)X(f), Y(f)=-A(f)Y(f) + B(f)X(f)<\/strong> \u3068\u3001\u305f\u3060\u306e\u4e57\u7b97\u3067\u8868\u305b\u308b\u3002\u3059\u3054\u3044\uff01\u51fa\u529b\/\u5165\u529b\u306e\u6bd4\u304c\u4f1d\u9054\u95a2\u6570\u3002H(f)\u306e\u5834\u5408\u304c\u7406\u89e3\u3057\u3084\u3059\u3044\u3002\u3069\u306e\u9ad8\u3055\u306e\u97f3\u304c\u3069\u308c\u304f\u3089\u3044\u4f1d\u308f\u308a\u3084\u3059\u3044\u306e\u304b\u3092\u8868\u3059\u304b\u3089\u3060\u3002<\/p>\n\n\n\n

\u30d5\u30ec\u30fc\u30e0\u5358\u4f4d\u306bFIR\u30d5\u30a3\u30eb\u30bf\u3092\u9069\u5fdc\u3059\u308b\u3068\u304d\u306b\u306f\u3001\uff11\u3064\u524d\u306e\u30d5\u30ec\u30fc\u30e0\u3092\u8a08\u7b97\u306b\u52a0\u3048\u308b\u3053\u3068\u3002<\/p>\n\n\n\n

\u30d5\u30a1\u30f3\u30d5\u30a1\u30af\u30c8\uff1a\u3000\u30dc\u30fc\u30ab\u30eb\u30ad\u30e3\u30f3\u30bb\u30e9\u30fc\u3068\u3044\u3046\u30d5\u30a3\u30eb\u30bf\u304c\u3042\u308b\u3002\u697d\u66f2\u306f\u30de\u30b9\u30bf\u30ea\u30f3\u30b0\u306e\u904e\u7a0b\u3067\u3001\u30dc\u30fc\u30ab\u30eb\u306f\u4e2d\u592e\uff1dLR\u540c\u3058\u97f3\u91cf\u3001\u697d\u5668\u306f\u5de6\u53f3\u306b\u632f\u3063\u3066\uff1dLR\u9055\u3046\u97f3\u91cf\u306b\u3059\u308b\u3002\u305d\u3053\u3067\u3001L\u3068R\u306e\u5dee\u5206\u3092\u53d6\u308b\u3053\u3068\u3067\u3001\u30dc\u30fc\u30ab\u30eb\u304c\u6d88\u3048\u308b\u3068\u3044\u3046\u5bf8\u6cd5\u3060\u3002<\/p>\n<\/div>\n\n\n\n

\n

\u63a5\u89e6\u4e0d\u826f\u3092\u304a\u3053\u3057\u305f\u58ca\u308c\u304b\u3051\u306e\u30a4\u30e4\u30db\u30f3\u304c\u4e2d\u9014\u534a\u7aef\u306b\u3064\u306a\u304c\u3063\u305f\u3068\u304d\u3001\u30dc\u30fc\u30ab\u30eb\u3060\u3051\u805e\u3053\u3048\u306a\u304f\u306a\u308b\u73fe\u8c61\u306b\u898b\u821e\u308f\u308c\u305f\u3053\u3068\u304c\u3042\u308b\u3060\u308d\u3046\u3002\u3042\u308c\u306f\u304d\u3063\u3068\u3001\u306a\u3093\u304b\u306e\u62cd\u5b50\u306bLR\u304c\u9006\u4f4d\u76f8\u3067\u6df7\u3056\u3063\u3066\uff08\u3053\u3053\u306f\u8b0e\u3002\u96fb\u5b50\u56de\u8def\u308f\u304b\u3089\u3093\uff09\u30dc\u30fc\u30ab\u30eb\u30ad\u30e3\u30f3\u30bb\u30e9\u306b\u306a\u3063\u305f\u3063\u3066\u3053\u3068\u3060\u3063\u305f\u308f\u3051\u3060\uff01<\/p>\n\n\n\n

\u3000<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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