\u8a08\u6e2c\u3057\u305f\u97f3\u3084\u632f\u52d5\u306e\u30c7\u30fc\u30bf\u306b\u306f\u3001\u77e5\u308a\u305f\u3044\u4fe1\u53f7\u306b\u91cd\u306a\u308b\u5f62\u3067\u300c\u30ce\u30a4\u30ba\uff08\u4e0d\u8981\u306a\u63fa\u3089\u304e\uff09\u300d\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u30ce\u30a4\u30ba\u3092\u9069\u5207\u306b\u6e1b\u3089\u3059\u3068\u3001\u5909\u5316\u306e\u5146\u5019\u304c\u898b\u3048\u3084\u3059\u304f\u306a\u308a\u3001\u8aa4\u691c\u77e5\u3084\u898b\u9003\u3057\u304c\u6e1b\u308b\u3002\u3053\u3053\u3067\u306f\u3001\u73fe\u5834\u3067\u6271\u3044\u3084\u3059\u3044\u4e8c\u3064\u306e\u57fa\u672c\u3092\u4e2d\u5fc3\u306b\u6574\u7406\u3059\u308b\u30021\u3064\u76ee\u306f\u300c\u30d5\u30a3\u30eb\u30bf\u300d\u3067\u5468\u6ce2\u6570\u3054\u3068\u306b\u901a\u3059\uff0f\u6291\u3048\u308b\u3092\u9078\u308a\u5206\u3051\u308b\u65b9\u6cd5\u30012\u3064\u76ee\u306f\u300c\u5e73\u5747\u6e1b\u7b97\u300d\u3067\u3086\u3063\u304f\u308a\u3057\u305f\u504f\u308a\uff08\u30aa\u30d5\u30bb\u30c3\u30c8\u3084\u4e00\u5b9a\u30d1\u30bf\u30fc\u30f3\uff09\u3092\u5f15\u304d\u7b97\u3067\u53d6\u308a\u9664\u304f\u65b9\u6cd5\u3067\u3042\u308b\u3002\u3069\u3061\u3089\u3082\u3001\u304d\u3061\u3093\u3068\u8a2d\u8a08\u3059\u308c\u3070\u4fe1\u53f7\u306e\u5f62\u3092\u4fdd\u3063\u305f\u307e\u307e\u30ce\u30a4\u30ba\u3092\u4e0b\u3052\u3089\u308c\u308b\u3002<\/p>\n\n\n\n
\u307e\u305a\u3001\u30d5\u30a3\u30eb\u30bf\u306e\u8003\u3048\u65b9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u62bc\u3055\u3048\u308b\u3002\u30d5\u30a3\u30eb\u30bf\u306f\u300c\u5fc5\u8981\u306a\u5e2f\u57df\u306f\u901a\u3057\u3001\u4e0d\u8981\u306a\u5e2f\u57df\u306f\u5f31\u3081\u308b\u300d\u9053\u5177\u3067\u3001\u4f4e\u3044\u5468\u6ce2\u6570\u3060\u3051\u901a\u3059\u30ed\u30fc\u30d1\u30b9\u3001\u9ad8\u3044\u5468\u6ce2\u6570\u3060\u3051\u901a\u3059\u30cf\u30a4\u30d1\u30b9\u3001\u72d9\u3063\u305f\u5e2f\u57df\u3060\u3051\u901a\u3059\u30d0\u30f3\u30c9\u30d1\u30b9\u3001\u7279\u5b9a\u5e2f\u57df\u3092\u843d\u3068\u3059\u30d0\u30f3\u30c9\u30b9\u30c8\u30c3\u30d7\uff08\u30ce\u30c3\u30c1\uff09\u304c\u57fa\u672c\u3068\u306a\u308b\u3002\u305f\u3068\u3048\u3070\u6e2c\u5b9a\u306b\u9ad8\u5468\u6ce2\u306e\u30b6\u30e9\u3064\u304d\u304c\u591a\u3044\u306a\u3089\u30ed\u30fc\u30d1\u30b9\u3067\u6ed1\u3089\u304b\u306b\u3057\u3001\u3086\u3063\u304f\u308a\u3057\u305f\u3086\u304c\u307f\uff08\u76f4\u6d41\u30aa\u30d5\u30bb\u30c3\u30c8\u3084\u30c9\u30ea\u30d5\u30c8\uff09\u304c\u90aa\u9b54\u306a\u3089\u30cf\u30a4\u30d1\u30b9\u3067\u53d6\u308a\u53bb\u308b\u3001\u3068\u3044\u3063\u305f\u4f7f\u3044\u5206\u3051\u306b\u306a\u308b\u3002\u79fb\u52d5\u5e73\u5747\u30d5\u30a3\u30eb\u30bf\uff08\u4e00\u5b9a\u6570\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u5e73\u5747\u3092\u9806\u6b21\u3068\u308b\uff09\u306f\u3082\u3063\u3068\u3082\u7c21\u5358\u306a\u30ed\u30fc\u30d1\u30b9\u3067\u3001\u30e9\u30f3\u30c0\u30e0\u30ce\u30a4\u30ba\u3092\u52b9\u679c\u7684\u306b\u4e0b\u3052\u3089\u308c\u3001\u5b9f\u88c5\u3082\u8efd\u304f\u3066\u9ad8\u901f\u306b\u52d5\u304f\u5b9f\u4f8b\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u308b\u3002\u5e73\u5747\u9577N\u306b\u5bfe\u3057\u3066\u3001\u7121\u76f8\u95a2\u30ce\u30a4\u30ba\u306e\u632f\u5e45\u306f\u6982\u306d1\/\u221aN\u306b\u5c0f\u3055\u304f\u3067\u304d\u308b\u3001\u3068\u3044\u3046\u76f4\u611f\u7684\u306a\u76ee\u5b89\u304c\u3042\u308b\u3002\u305f\u3060\u3057\u79fb\u52d5\u5e73\u5747\u306f\u30a8\u30c3\u30b8\uff08\u6025\u306a\u5909\u5316\uff09\u3082\u5c11\u3057\u4e38\u3081\u308b\u305f\u3081\u3001\u30ab\u30c3\u30c8\u30aa\u30d5\u5468\u6ce2\u6570\u3084\u7a93\u5e45\u306f\u3001\u898b\u305f\u3044\u73fe\u8c61\u3092\u640d\u306a\u308f\u306a\u3044\u7bc4\u56f2\u306b\u8abf\u6574\u3059\u308b\u306e\u304c\u8981\u70b9\u3060\u3002[1][2]\n\n\n\n
\u3082\u3046\u4e00\u6b69\u8e0f\u307f\u8fbc\u3080\u3068\u3001\u30c7\u30b8\u30bf\u30eb\u30fb\u30d5\u30a3\u30eb\u30bf\u306b\u306f\u904e\u53bb\u306e\u5165\u529b\u3060\u3051\u3067\u51fa\u529b\u3092\u4f5c\u308bFIR\u578b\u3068\u3001\u51fa\u529b\u306e\u904e\u53bb\u5024\u3082\u4f7f\u3046IIR\u578b\u304c\u3042\u308b\u3002FIR\u306f\u4f4d\u76f8\u3092\u7d20\u76f4\u306b\u4fdd\u3061\u3084\u3059\u304f\u6ce2\u5f62\u304c\u5d29\u308c\u306b\u304f\u3044\u9577\u6240\u304c\u3042\u308a\u3001IIR\u306f\u5c11\u306a\u3044\u4fc2\u6570\u3067\u92ed\u3044\u7279\u6027\u3092\u5b9f\u73fe\u3057\u3084\u3059\u304f\u8efd\u3044\u3002\u73fe\u5834\u3067\u306f\u3001\u7e70\u308a\u8fd4\u3057\u306e\u59a8\u5bb3\uff08\u4f8b\u3048\u3070\u96fb\u6e90\u5468\u6ce2\u6570\uff09\u306b\u7d30\u304f\u72d9\u3044\u3092\u5b9a\u3081\u308b\u30ce\u30c3\u30c1\u3001\u5e83\u5e2f\u57df\u306e\u30b6\u30e9\u3064\u304d\u3092\u6291\u3048\u308b\u30ed\u30fc\u30d1\u30b9\u3001\u57fa\u7dda\u3086\u308c\u3092\u53d6\u308b\u30cf\u30a4\u30d1\u30b9\u3092\u4f7f\u3044\u5206\u3051\u308b\u306e\u304c\u5b9a\u756a\u3067\u3001\u30a2\u30ca\u30ed\u30b0\u6bb5\u3067\u306f\u30c4\u30a4\u30f3T\u30ce\u30c3\u30c1\u306e\u3088\u3046\u306a\u53e4\u5178\u56de\u8def\u306760Hz\u3092\u843d\u3068\u3059\u8a2d\u8a08\u4f8b\u3082\u77e5\u3089\u308c\u3066\u3044\u308b\u3002\u4e00\u65b9\u3067\u300c\u5e73\u5747\u5316\u3067\u30ce\u30a4\u30ba\u306f\u6e1b\u3063\u3066\u3082\u30a8\u30c3\u30b8\u304c\u307c\u3051\u308b\u300d\u300c\u5f37\u304f\u524a\u308a\u3059\u304e\u308b\u3068\u4fe1\u53f7\u306e\u5927\u4e8b\u306a\u7d30\u90e8\u3082\u5931\u3046\u300d\u3068\u3044\u3046\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306f\u907f\u3051\u3089\u308c\u306a\u3044\u3002\u753b\u50cf\u51e6\u7406\u306e\u5e73\u6ed1\u5316\u3067\u3082\u540c\u3058\u73fe\u8c61\u304c\u6307\u6458\u3055\u308c\u3001\u4e2d\u592e\u5024\uff08\u30e1\u30c7\u30a3\u30a2\u30f3\uff09\u306a\u3069\u76ee\u7684\u306b\u5fdc\u3058\u3066\u6700\u9069\u306a\u5e73\u6ed1\u6cd5\u3092\u9078\u3076\u91cd\u8981\u6027\u304c\u5f37\u8abf\u3055\u308c\u3066\u3044\u308b\u304c\u3001\u3053\u306e\u8003\u3048\u65b9\u306f\u6642\u7cfb\u5217\u306e\u30ce\u30a4\u30ba\u4f4e\u6e1b\u306b\u3082\u901a\u3058\u308b\u3002[3][4][5]\n\n\n\n
\u6b21\u306b\u3001\u5e73\u5747\u6e1b\u7b97\u306e\u8003\u3048\u65b9\u3092\u6574\u7406\u3059\u308b\u3002\u5e73\u5747\u6e1b\u7b97\u306f\u300c\u30c7\u30fc\u30bf\u306e\u5e73\u5747\uff08\u3086\u3063\u304f\u308a\u3057\u305f\u504f\u308a\uff09\u3092\u898b\u7a4d\u3082\u3063\u3066\u5f15\u304d\u7b97\u3059\u308b\u300d\u3053\u3068\u3067\u3001\u76f4\u6d41\u30aa\u30d5\u30bb\u30c3\u30c8\u3084\u7e70\u308a\u8fd4\u3057\u306e\u59a8\u5bb3\u30d1\u30bf\u30fc\u30f3\u3092\u53d6\u308a\u9664\u304f\u65b9\u6cd5\u3067\u3042\u308b\u3002\u6700\u3082\u5358\u7d14\u306b\u306f\u3001\u6642\u9593\u7a93\u306e\u5e73\u5747\u5024\u3092\u9010\u6b21\u5f15\u304f\u3068\u3001\u57fa\u7dda\u304c\u30bc\u30ed\u8fd1\u304f\u306b\u6574\u3044\u3001\u30cf\u30a4\u30d1\u30b9\u306b\u4f3c\u305f\u52b9\u679c\u304c\u5f97\u3089\u308c\u308b\u3002\u7e70\u308a\u8fd4\u3057\u5e72\u6e09\uff08\u305f\u3068\u3048\u3070\u4e00\u5b9a\u5468\u671f\u306e\u96fb\u78c1\u30ce\u30a4\u30ba\uff09\u304c\u91cd\u306a\u308b\u30b1\u30fc\u30b9\u3067\u306f\u3001\u5e72\u6e09\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u306b\u540c\u671f\u3057\u3066\u591a\u6570\u56de\u306e\u5e73\u5747\u6ce2\u5f62\uff08\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\uff09\u3092\u4f5c\u308a\u3001\u539f\u4fe1\u53f7\u304b\u3089\u305d\u306e\u5e73\u5747\u6ce2\u5f62\u3092\u6e1b\u7b97\u3059\u308b\u3068\u6c5a\u308c\u304c\u5927\u5e45\u306b\u4e0b\u304c\u308b\u3002\u96fb\u6c17\u751f\u7406\u306a\u3069\u306e\u5206\u91ce\u3067\u306f\u3001\u3053\u306e\u300c\u540c\u671f\u5e73\u5747\u2192\u6e1b\u7b97\u300d\u306b\u3088\u308aAC\u30e9\u30a4\u30f3\u3084\u7e70\u308a\u8fd4\u3057\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u3092\u6291\u3048\u308b\u65b9\u6cd5\u304c\u63d0\u6848\u3055\u308c\u3001\u5e73\u5747\u306e\u4f5c\u308a\u65b9\uff08\u5358\u7d14\u5e73\u5747\u3001\u52a0\u91cd\u5e73\u5747\uff09\u3084\u3001DC\u30aa\u30d5\u30bb\u30c3\u30c8\u306e\u6e2c\u5b9a\u30fb\u6e1b\u7b97\u306e\u8003\u3048\u65b9\u304c\u793a\u3055\u308c\u3066\u3044\u308b\u3002\u5e73\u5747\u5316\u306e\u6642\u9593\u30b9\u30b1\u30fc\u30eb\u306f\u3001\u53d6\u308a\u305f\u3044\u6700\u4f4e\u5468\u6ce2\u6570\u306e10\u500d\u7a0b\u5ea6\u3092\u76ee\u5b89\u306b\u5341\u5206\u9577\u304f\u3068\u308b\u3068\u3001\u771f\u306e\u4f4e\u5468\u6ce2\u6210\u5206\u3092\u524a\u308a\u904e\u304e\u305a\u306b\u30aa\u30d5\u30bb\u30c3\u30c8\u3060\u3051\u3092\u5b89\u5b9a\u3057\u3066\u8a55\u4fa1\u3067\u304d\u308b\u3001\u3068\u3044\u3046\u8a2d\u8a08\u6307\u91dd\u3082\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b\u3002[6]\n\n\n\n
\u5e73\u5747\u6e1b\u7b97\u306e\u5229\u70b9\u306f\u3001\u5468\u6ce2\u6570\u3067\u5207\u308b\u306e\u3067\u306f\u306a\u304f\u300c\u5f62\u306e\u518d\u73fe\u300d\u3092\u4f7f\u3063\u3066\u6c5a\u308c\u3092\u5f15\u304f\u306e\u3067\u3001\u6b32\u3057\u3044\u5e2f\u57df\u3092\u5e83\u304f\u6b8b\u3057\u3084\u3059\u3044\u70b9\u306b\u3042\u308b\u3002\u305d\u306e\u4e00\u65b9\u3001\u72b6\u6cc1\u304c\u6642\u9593\u3068\u3068\u3082\u306b\u5909\u308f\u308b\u3068\u5e73\u5747\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u6700\u65b0\u306e\u6c5a\u308c\u3092\u8868\u3057\u5207\u308c\u305a\u3001\u6b8b\u5dee\u304c\u51fa\u308b\u3002\u97f3\u58f0\u306e\u96d1\u97f3\u6291\u5727\u306e\u89e3\u8aac\u3067\u3082\u3001\u7d71\u8a08\u7684\u306b\u30ce\u30a4\u30ba\u3092\u63a8\u5b9a\u3057\u3066\u5f15\u304f\u65b9\u6cd5\u306f\u300c\u63a8\u5b9a\u306e\u9045\u308c\u300d\u3084\u300c\u5e73\u5747\u64cd\u4f5c\u306e\u9045\u5ef6\u300d\u306b\u3088\u308b\u6b6a\u307f\u3084\u6b8b\u7559\u30ce\u30a4\u30ba\u306e\u5897\u5927\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3001\u9045\u5ef6\u3084\u66f4\u65b0\u306e\u5de5\u592b\u3067\u88dc\u3046\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u8b70\u8ad6\u3055\u308c\u3066\u3044\u308b\u3002\u5b9f\u52d9\u3067\u306f\u3001\u5e73\u5747\u306e\u66f4\u65b0\u3092\u5b89\u5b9a\u5316\u3059\u308b\uff08\u904e\u5ea6\u306b\u901f\u304f\u5909\u3048\u306a\u3044\uff09\u3001\u3057\u304d\u3044\u5024\u3067\u7121\u97f3\u6642\u306e\u307f\u66f4\u65b0\u3059\u308b\u3001\u306a\u3069\u904b\u7528\u30eb\u30fc\u30eb\u3092\u6dfb\u3048\u308b\u3068\u7834\u7dbb\u3057\u306b\u304f\u3044\u3002[7]\n\n\n\n
\u3067\u306f\u3001\u3069\u306e\u3088\u3046\u306b\u4e21\u8005\u3092\u4f7f\u3044\u5206\u3051\u308b\u304b\u3002\u76ee\u5b89\u3092\u4e09\u3064\u6319\u3052\u308b\u30021) \u5e83\u5e2f\u57df\u306e\u30e9\u30f3\u30c0\u30e0\u30ce\u30a4\u30ba\u304c\u4e3b\u3067\u3001\u4fe1\u53f7\u306e\u7279\u5fb4\u5e2f\u57df\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u306a\u3089\u3001\u30ed\u30fc\u30d1\u30b9\uff0f\u30cf\u30a4\u30d1\u30b9\uff0f\u30d0\u30f3\u30c9\u30d1\u30b9\u306a\u3069\u306e\u30d5\u30a3\u30eb\u30bf\u3067\u5e2f\u57df\u9078\u629e\u3059\u308b\u65b9\u304c\u5805\u5b9f\u3067\u3042\u308b\uff08\u79fb\u52d5\u5e73\u5747\u3092\u542b\u3080\uff09\u3002\u79fb\u52d5\u5e73\u5747\u306f\u8efd\u304f\u3066\u52b9\u679c\u304c\u308f\u304b\u308a\u3084\u3059\u304f\u3001N\u70b9\u5e73\u5747\u3067\u30ce\u30a4\u30ba\u632f\u5e45\u304c\u7d041\/\u221aN\u3078\u4f4e\u6e1b\u3059\u308b\u3088\u3046\u306a\u5178\u578b\u7684\u6319\u52d5\u304c\u671f\u5f85\u3067\u304d\u308b\u30022) \u4e00\u5b9a\u5468\u671f\u3067\u7e70\u308a\u8fd4\u3059\u59a8\u5bb3\uff08\u30e9\u30a4\u30f3\u30ce\u30a4\u30ba\u3001\u540c\u671f\u7684\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\uff09\u304c\u652f\u914d\u7684\u306a\u3089\u3001\u540c\u671f\u5e73\u5747\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u4f5c\u3063\u3066\u6e1b\u7b97\u3059\u308b\u300c\u5e73\u5747\u6e1b\u7b97\u300d\u304c\u52b9\u304f\u30023) \u305d\u306e\u4e21\u65b9\u304c\u6df7\u5728\u3059\u308b\u306a\u3089\u3001\u307e\u305a\u5e2f\u57df\u3067\u5927\u3065\u304b\u307f\u306b\u6574\u3048\uff08\u4f8b\uff1a\u30ed\u30fc\u30d1\u30b9\u3084\u30ce\u30c3\u30c1\uff09\u3001\u6b8b\u3063\u305f\u5468\u671f\u7684\u6210\u5206\u3092\u5e73\u5747\u6e1b\u7b97\u3067\u4ed5\u4e0a\u3052\u308b\u3001\u3068\u3044\u3046\u4e8c\u6bb5\u69cb\u3048\u304c\u5b9f\u8df5\u7684\u3060\u3002[2][1][6]\n\n\n\n
\u5b9f\u88c5\u6642\u306e\u8981\u70b9\u3092\u5177\u4f53\u5316\u3059\u308b\u3002- \u8a2d\u8a08\u306e\u51fa\u767a\u70b9\u306f\u3001\u5bfe\u8c61\u306e\u6700\u9ad8\u30fb\u6700\u4f4e\u5468\u6ce2\u6570\u306e\u898b\u7a4d\u3082\u308a\u3068\u3001\u4fdd\u6301\u3057\u305f\u3044\u5f62\u306e\u6642\u9593\u30b9\u30b1\u30fc\u30eb\u3067\u3042\u308b\u3002\u3053\u308c\u306b\u5408\u308f\u305b\u3066\u30d5\u30a3\u30eb\u30bf\u306e\u30ab\u30c3\u30c8\u30aa\u30d5\uff08\u22123dB\u8fd1\u508d\uff09\u3084\u5e73\u5747\u7a93\u306e\u9577\u3055\u3092\u9078\u3076\u3002- \u79fb\u52d5\u5e73\u5747\u3092\u4f7f\u3046\u5834\u5408\u3001\u30a4\u30d9\u30f3\u30c8\u306e\u7acb\u3061\u4e0a\u304c\u308a\uff08\u30b9\u30c6\u30c3\u30d7\uff09\u3092\u920d\u3089\u305b\u904e\u304e\u306a\u3044\u7a93\u9577\u306b\u6291\u3048\u308b\u3002- \u30c0\u30a6\u30f3\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u524d\u3084A\/D\u524d\u6bb5\u3067\u306f\u3001\u5fc5\u305a\u30ed\u30fc\u30d1\u30b9\uff08\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9\uff09\u3067\u65b0\u3057\u3044\u30ca\u30a4\u30ad\u30b9\u30c8\u672a\u6e80\u306b\u5e2f\u57df\u3092\u7d5e\u308b\uff08\u6298\u308a\u8fd4\u3057\u9632\u6b62\uff09\u3002- \u7e70\u308a\u8fd4\u3057\u5e72\u6e09\u306e\u5e73\u5747\u6e1b\u7b97\u306f\u3001\u30c8\u30ea\u30ac\u3067\u6b63\u3057\u304f\u6574\u5217\u3057\u3001\u5341\u5206\u306a\u56de\u6570\u3092\u5e73\u5747\u3057\u3066\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u5b89\u5b9a\u3055\u305b\u308b\u3002\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306f\u7de9\u3084\u304b\u306b\u66f4\u65b0\uff08\u52a0\u91cd\u5e73\u5747\uff09\u3059\u308b\u3068\u74b0\u5883\u5909\u52d5\u306b\u8ffd\u968f\u3057\u3084\u3059\u3044\u3002- \u7d50\u679c\u306e\u78ba\u8a8d\u306f\u6642\u9593\u6ce2\u5f62\u3060\u3051\u3067\u306a\u304f\u30d1\u30ef\u30fc\u30b9\u30da\u30af\u30c8\u30eb\u5bc6\u5ea6\uff08PSD\uff09\u3067\u3082\u884c\u3046\u3002\u5e2f\u57df\u5168\u4f53\u3067\u30ce\u30a4\u30ba\u5e8a\u304c\u4e0b\u304c\u308a\u3001\u6b32\u3057\u3044\u5468\u6ce2\u6570\u306e\u30d4\u30fc\u30af\u304c\u76f8\u5bfe\u7684\u306b\u7acb\u3063\u3066\u3044\u308b\u304b\u3092\u898b\u308b\u3002PSD\u306f\u5468\u6ce2\u6570\u5206\u89e3\u80fd\u306b\u4f9d\u5b58\u3057\u306a\u30441Hz\u3042\u305f\u308a\u898f\u683c\u5316\u3067\u6bd4\u8f03\u3057\u3084\u3059\u3044\uff08\u7a93\u306e\u7b49\u4fa1\u96d1\u97f3\u5e2f\u57df\u5e45\u306b\u3088\u308b\u88dc\u6b63\u3092\u884c\u3046\u306e\u304c\u57fa\u672c\uff09\u3068\u3044\u3046\u6559\u79d1\u66f8\u7684\u6574\u7406\u304c\u3042\u308b\u3002[8][6]\n\n\n\n
\u3055\u3089\u306b\u3001\u51e6\u7406\u3092\u304b\u3051\u904e\u304e\u306a\u3044\u305f\u3081\u306e\u300c\u5408\u56f3\u300d\u3092\u6301\u3063\u3066\u304a\u304f\u3068\u826f\u3044\u3002\u305f\u3068\u3048\u3070\u3001\u79fb\u52d5\u5e73\u5747\u3092\u4f38\u3070\u3057\u3066\u3044\u3063\u305f\u3068\u304d\u306b\u3001\u76ee\u7684\u30d4\u30fc\u30af\u306e\u9ad8\u3055\uff08\u307e\u305f\u306fS\/N\uff09\u304c\u982d\u6253\u3061\u306b\u306a\u308a\u3001\u6ce2\u5f62\u306e\u7acb\u3061\u4e0a\u304c\u308a\u304c\u5d29\u308c\u59cb\u3081\u305f\u3089\u3001\u305d\u308c\u4ee5\u4e0a\u306f\u526f\u4f5c\u7528\u304c\u52dd\u3064\u30b5\u30a4\u30f3\u3067\u3042\u308b\u3002\u753b\u50cf\u306e\u5e73\u6ed1\u5316\u3067\u3082\u300c\u30ce\u30a4\u30ba\u306f\u6e1b\u308b\u304c\u30a8\u30c3\u30b8\u304c\u307c\u3051\u308b\u300d\u3068\u3044\u3046\u30d0\u30e9\u30f3\u30b9\u70b9\u304c\u3042\u308b\u306e\u3068\u540c\u3058\u3067\u3001\u9069\u5ea6\u306a\u7a93\u3084\u30ab\u30c3\u30c8\u30aa\u30d5\u306b\u3068\u3069\u3081\u308b\u306e\u304c\u809d\u5fc3\u3060\u3002\u307e\u305f\u3001\u56fa\u5b9a\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30d5\u30a3\u30eb\u30bf\u3060\u3051\u3067\u96e3\u3057\u3044\u5834\u9762\u3067\u306f\u3001\u89b3\u6e2c\u30c7\u30fc\u30bf\u304b\u3089\u6700\u9069\u306b\u8fd1\u3044\u901a\u3057\u65b9\u3092\u63a8\u5b9a\u3059\u308b\u30a6\u30a4\u30ca\u30fc\u30d5\u30a3\u30eb\u30bf\u306e\u3088\u3046\u306a\u65b9\u6cd5\u3082\u57fa\u790e\u7406\u8ad6\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u304a\u308a\uff08\u5e73\u5747\u4e8c\u4e57\u8aa4\u5dee\u3092\u6700\u5c0f\u5316\u3059\u308b\u610f\u5473\u3067\u306e\u6700\u9069\u5316\uff09\u3001\u97f3\u58f0\u30fb\u753b\u50cf\u306e\u96d1\u97f3\u6291\u5727\u3067\u6d3b\u7528\u3055\u308c\u3066\u3044\u308b\u3002\u305f\u3060\u3057\u3001\u5fc5\u8981\u306a\u4e8b\u524d\u60c5\u5831\uff08\u4fe1\u53f7\u3068\u96d1\u97f3\u306e\u7d71\u8a08\uff09\u3084\u5b9f\u88c5\u306e\u8907\u96d1\u3055\u3092\u8003\u3048\u308b\u3068\u3001\u73fe\u5834\u306e\u7b2c\u4e00\u9078\u629e\u306f\u3084\u306f\u308a\u300c\u5e2f\u57df\u3067\u6574\u3048\u308b\u300d\u300c\u5e73\u5747\u3067\u5f15\u304f\u300d\u3068\u3044\u3046\u7d20\u6734\u3067\u5805\u7262\u306a\u7d44\u307f\u5408\u308f\u305b\u306b\u306a\u308b\u3002[4][3][8]\n\n\n\n
\u6700\u5f8c\u306b\u3001\u73fe\u5834\u30d5\u30ed\u30fc\u306e\u3072\u306a\u578b\u3092\u307e\u3068\u3081\u308b\u30021) \u6821\u6b63\u30fb\u53d6\u308a\u4ed8\u3051\u3092\u78ba\u8a8d\u3057\u305f\u4e0a\u3067\u3001\u5341\u5206\u306a\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3067\u30c7\u30fc\u30bf\u53d6\u5f97\u30022) \u76f4\u6d41\u30fb\u30c9\u30ea\u30d5\u30c8\u304c\u3042\u308b\u3068\u304d\u306f\u3001\u30cf\u30a4\u30d1\u30b9\u307e\u305f\u306f\u9577\u7a93\u5e73\u5747\u6e1b\u7b97\u3067\u57fa\u7dda\u3092\u6574\u3048\u308b\u30023) \u5e83\u5e2f\u57df\u30ce\u30a4\u30ba\u304c\u5f37\u3044\u3068\u304d\u306f\u3001\u79fb\u52d5\u5e73\u5747\u3084\u30ed\u30fc\u30d1\u30b9\u3067\u5e73\u6ed1\u5316\uff08\u7a93\u9577\u306f\u30a4\u30d9\u30f3\u30c8\u306e\u6642\u9593\u5e45\u3088\u308a\u77ed\u304f\uff09\u30024) \u7279\u5b9a\u306e\u59a8\u5bb3\u5468\u6ce2\u6570\u304c\u660e\u78ba\u306a\u3089\u3001\u30ce\u30c3\u30c1\u3067\u72d9\u3044\u6483\u3061\u30025) \u7e70\u308a\u8fd4\u3057\u5e72\u6e09\u306b\u306f\u540c\u671f\u5e73\u5747\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u4f5c\u3063\u3066\u6e1b\u7b97\u30026) \u4ed5\u4e0a\u3052\u306bPSD\u3067\u30ce\u30a4\u30ba\u5e8a\u4f4e\u4e0b\u3068\u76ee\u7684\u5e2f\u57df\u306eS\/N\u6539\u5584\u3092\u78ba\u8a8d\u3001\u6642\u9593\u6ce2\u5f62\u3067\u7acb\u3061\u4e0a\u304c\u308a\u3084\u30d1\u30eb\u30b9\u5f62\u306e\u4fdd\u5168\u3092\u78ba\u8a8d\u3002\u4ee5\u4e0a\u306e\u624b\u9806\u306f\u3001\u79fb\u52d5\u5e73\u5747\u306e\u30ce\u30a4\u30ba\u4f4e\u6e1b\u52b9\u679c\u3084\u540c\u671f\u5e73\u5747\u6e1b\u7b97\u306e\u6709\u52b9\u6027\u3001\u305d\u3057\u3066\u8a2d\u8a08\u4e0a\u306e\u6ce8\u610f\uff08\u9045\u5ef6\u3084\u66f4\u65b0\u306e\u6271\u3044\uff09\u306b\u95a2\u3059\u308b\u516c\u958b\u89e3\u8aac\u30fb\u8cc7\u6599\u3068\u6574\u5408\u3057\u3066\u3044\u308b\u3002[1][7][2]\n\n\n\n[1] https:\/\/liquidinstruments.com\/ja\/application-notes\/custom-real-time-digital-filtering\/<\/p>\n\n\n\n[2] http:\/\/jsrt-chushi.jp\/main\/wp-content\/uploads\/2014\/04\/%E3%83%8E%E3%82%A4%E3%82%BA%E5%8E%9F%E7%90%86%E3%83%BB%E4%BD%8E%E6%B8%9B%E3%83%BB%E5%88%A9%E7%94%A8_PDF.pdf<\/p>\n\n\n\n[3] https:\/\/note.com\/omakazu\/n\/n877890edb256<\/p>\n\n\n\n[4] https:\/\/www.mitani-visual.jp\/mivlog\/imageprocessing\/filter-summary.php<\/p>\n\n\n\n[5] https:\/\/edn.itmedia.co.jp\/edn\/articles\/1405\/26\/news007.html<\/p>\n\n\n\n[6] https:\/\/patents.google.com\/patent\/JP2004507293A\/ja<\/p>\n\n\n\n[7] https:\/\/www.ieice-hbkb.org\/files\/02\/02gun_06hen_04.pdf<\/p>\n\n\n\n[8] https:\/\/www.ieice-hbkb.org\/files\/01\/01gun_05hen_05m.pdf<\/p>\n\n\n\n[9] https:\/\/qiita.com\/nakarinrin\/items\/6122c16244de0d9fa34e<\/p>\n\n\n\n[10] https:\/\/www.kanedayyy.jp\/asp\/ASP\/DSPseminar14.pdf[11] https:\/\/www.coronasha.co.jp\/np\/data\/tachiyomi\/978-4-339-01402-0.pdf<\/p>\n\n\n\n
\u203b\u672c\u30da\u30fc\u30b8\u306f\u3001AI\u306e\u6d3b\u7528\u3084\u7814\u7a76\u306b\u95a2\u9023\u3059\u308b\u539f\u7406\u30fb\u6a5f\u5668\u30fb\u30c7\u30d0\u30a4\u30b9\u306b\u3064\u3044\u3066\u5b66\u3076\u305f\u3081\u306b\u3001\u500b\u4eba\u7684\u306b\u6574\u7406\u30fb\u8a18\u8ff0\u3057\u3066\u3044\u308b\u3082\u306e\u3067\u3059\u3002\u5185\u5bb9\u306b\u306f\u8aa4\u308a\u3084\u898b\u843d\u3068\u3057\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u3082\u3057\u304a\u6c17\u3065\u304d\u306e\u70b9\u3084\u3054\u52a9\u8a00\u7b49\u3054\u3056\u3044\u307e\u3057\u305f\u3089\u3001\u3054\u9023\u7d61\u3044\u305f\u3060\u3051\u307e\u3059\u3068\u5e78\u3044\u3067\u3059\u3002<\/strong><\/p>\n\n\n\n \u203b\u672c\u30da\u30fc\u30b8\u306e\u5185\u5bb9\u306f\u3001\u500b\u4eba\u7684\u306a\u5b66\u7fd2\u304a\u3088\u3073\u60c5\u5831\u6574\u7406\u3092\u76ee\u7684\u3068\u3057\u3066\u63d0\u4f9b\u3057\u3066\u3044\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u305d\u306e\u6b63\u78ba\u6027\u3001\u5b8c\u5168\u6027\u3001\u6709\u7528\u6027\u7b49\u306b\u3064\u3044\u3066\u3044\u304b\u306a\u308b\u4fdd\u8a3c\u3082\u884c\u3044\u307e\u305b\u3093\u3002\u672c\u30da\u30fc\u30b8\u306e\u60c5\u5831\u3092\u5229\u7528\u3057\u305f\u3053\u3068\u3001\u307e\u305f\u306f\u5229\u7528\u3067\u304d\u306a\u304b\u3063\u305f\u3053\u3068\u306b\u3088\u3063\u3066\u767a\u751f\u3057\u305f\u640d\u5bb3\uff08\u76f4\u63a5\u7684\u30fb\u9593\u63a5\u7684\u30fb\u7279\u5225\u30fb\u5076\u767a\u7684\u30fb\u7d50\u679c\u7684\u640d\u5bb3\u3092\u542b\u307f\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306b\u9650\u308a\u307e\u305b\u3093\uff09\u306b\u3064\u3044\u3066\u3001\u5f53\u65b9\u306f\u4e00\u5207\u8cac\u4efb\u3092\u8ca0\u3044\u307e\u305b\u3093\u3002\u3054\u5229\u7528\u306f\u5229\u7528\u8005\u3054\u81ea\u8eab\u306e\u8cac\u4efb\u3067\u304a\u9858\u3044\u3044\u305f\u3057\u307e\u3059\u3002<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" 4. \u30c7\u30fc\u30bf\u524d\u51e6\u7406 4.1 \u30ce\u30a4\u30ba\u9664\u53bb\uff08\u30d5\u30a3\u30eb\u30bf\u3001\u5e73\u5747\u6e1b\u7b97\uff09 \u8a08\u6e2c\u3057\u305f\u97f3\u3084\u632f\u52d5\u306e\u30c7\u30fc\u30bf\u306b\u306f\u3001\u77e5\u308a\u305f\u3044\u4fe1\u53f7\u306b\u91cd\u306a\u308b\u5f62\u3067\u300c\u30ce\u30a4\u30ba\uff08\u4e0d\u8981\u306a\u63fa\u3089\u304e\uff09\u300d\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u30ce\u30a4\u30ba\u3092\u9069\u5207\u306b\u6e1b\u3089\u3059\u3068\u3001\u5909\u5316\u306e\u5146\u5019\u304c\u898b\u3048\u3084\u3059\u304f\u306a\u308a\u3001\u2026<\/p>\n","protected":false},"author":1,"featured_media":571,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-627","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research"],"_links":{"self":[{"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=\/wp\/v2\/posts\/627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=627"}],"version-history":[{"count":2,"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=\/wp\/v2\/posts\/627\/revisions"}],"predecessor-version":[{"id":790,"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=\/wp\/v2\/posts\/627\/revisions\/790"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=\/wp\/v2\/media\/571"}],"wp:attachment":[{"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shin-ichi.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}