{"id":516,"date":"2012-12-17T15:17:51","date_gmt":"2012-12-17T06:17:51","guid":{"rendered":"http:\/\/www.bi.appi.keio.ac.jp\/?p=516"},"modified":"2013-07-04T09:31:27","modified_gmt":"2013-07-04T00:31:27","slug":"%e5%8d%98%e6%a5%b5%e6%80%a7%e7%9f%a9%e5%bd%a2%e6%b3%a2%e3%81%ae%e5%91%a8%e6%b3%a2%e6%95%b0%e5%b8%af%e5%9f%9f","status":"publish","type":"post","link":"https:\/\/www.bi.appi.keio.ac.jp\/?p=516","title":{"rendered":"\u5358\u6975\u6027\u77e9\u5f62\u6ce2\u306e\u5468\u6ce2\u6570\u5e2f\u57df"},"content":{"rendered":"

\u6211\u3005\u306e\u7814\u7a76\u5ba4\u3067\u306f\uff0c\u96fb\u6c17\u523a\u6fc0\u306b\u30d1\u30eb\u30b9\u5e450.5 ms\u306e\u5358\u6975\u6027\u77e9\u5f62\u6ce2\u3092\u7528\u3044\u3066\u3044\u307e\u3059\uff0e\u3053\u308c\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\uff0e<\/p>\n

\u30d1\u30eb\u30b9\u5e45\u304c[latex]T[\/latex]\u3067\u632f\u5e45\u304c[latex]1\/T[\/latex]\u306e\u77e9\u5f62\u6ce2[latex]y(t)[\/latex]\u306e\u30e9\u30d7\u30e9\u30b9\u5909\u63db[latex]Y(s)[\/latex]\u306f\uff0c
\n[latex]\\frac{1}{T}\\left(\\frac{1}{s}-\\frac{e^{-Ts}}{s}\\right)[\/latex]
\n\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n

\u5f62\u5f0f\u7684\u306b[latex]s=j\\omega[\/latex]\u3092\u4ee3\u5165\u3057\u3066\u7d76\u5bfe\u5024\u3092\u6c42\u3081\u308b\u3068\uff0c
\n[latex]|Y(j\\omega)|=|\\frac{\\sin^2(T\\omega\/2)}{T\\omega\/2}|[\/latex]
\n\u306b\u306a\u308a\u307e\u3059\uff0e\u3064\u307e\u308asinc\u95a2\u6570\u306e\u7d76\u5bfe\u5024\u3067\u3059\uff0e<\/p>\n

\u3053\u306e\u95a2\u6570\u306f[latex]T[\/latex]\u304c0.5 ms\u306e\u3068\u304d\u306b\uff0c<\/p>\n

\"Graph1\"<\/a><\/p>\n

\u306b\u306a\u308a\u307e\u3059\uff0e-3 dB\u306e\u5e2f\u57df\u3067886 Hz\u4f4d\u306b\u306a\u308a\u307e\u3059\uff0e<\/p>\n

\u7b4b\u97f3\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u306f\uff0c\u52a0\u901f\u5ea6\u3067\u306f100 Hz\u4ee5\u4e0b\uff08\u5909\u4f4d\u3067\u306f\u3055\u3089\u306b\u4f4e\u3044\uff09\u3067\u3059\u304b\u3089\uff0c0.5 ms\u306e\u5358\u6975\u6027\u77e9\u5f62\u6ce2\u306f\u5341\u5206\u30d5\u30e9\u30c3\u30c8\u306a\u5468\u6ce2\u6570\u7279\u6027\u3092\u6709\u3057\u3066\u3044\u307e\u3059\uff08100 Hz\u306e\u30b2\u30a4\u30f3\u306f0.996\uff09\uff0e<\/p>\n

\u5de5\u5b66\u7684\u306a\u8aac\u660e\u306f\u4e0a\u8a18\u306e\u3068\u304a\u308a\u3067\u3059\u304c\uff0c\u96fb\u6c17\u751f\u7406\u5b66\u7684\u306b\u306f\u6d3b\u52d5\u96fb\u4f4d\u30921\u3064\u767a\u751f\u3055\u305b\u308c\u3070\u3088\u304f\uff0c\u6d3b\u52d5\u96fb\u4f4d\u306e\u6301\u7d9a\u6642\u9593\u306f\u6570\u30df\u30ea\u79d2\u3067\u3059\u304b\u3089\uff0c\u4e0a\u8a18\u3088\u308a\u5e2f\u57df\u306f\u72ed\u304f\u306a\u308b\u3067\u3057\u3087\u3046\u304c\uff0c\u6a5f\u68b0\u7684\u6027\u8cea\u3092\u8a08\u6e2c\u3059\u308b\u4e0a\u3067\u306f\u554f\u984c\u306b\u306f\u306a\u3089\u306a\u3044\u3068\u8003\u3048\u3089\u308c\u307e\u3059\uff0e\u6d3b\u52d5\u96fb\u4f4d\u3067\u7b4b\u306e\u30e2\u30c7\u30eb\u306e\u529b\u767a\u751f\u8981\u7d20\uff08[latex]f_1(t)[\/latex]\uff09\u304c\u30a4\u30f3\u30d1\u30eb\u30b9\u7684\u306b\u53ce\u7e2e\u529b\u3092\u767a\u63ee\u3059\u308b\u3053\u3068\u3092\u4eee\u5b9a\u3057\u3066\u3044\u307e\u3059\uff0e<\/p>\n

\"fig3\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u6211\u3005\u306e\u7814\u7a76\u5ba4\u3067\u306f\uff0c\u96fb\u6c17\u523a\u6fc0\u306b\u30d1\u30eb\u30b9\u5e450.5 ms\u306e\u5358\u6975\u6027\u77e9\u5f62\u6ce2\u3092\u7528\u3044\u3066\u3044\u307e\u3059\uff0e\u3053\u308c\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\uff0e \u30d1\u30eb\u30b9\u5e45\u304c[latex]T[\/latex]\u3067\u632f\u5e45\u304c[latex]1\/T[\/latex]\u306e\u77e9\u5f62\u6ce2[l … “\u5358\u6975\u6027\u77e9\u5f62\u6ce2\u306e\u5468\u6ce2\u6570\u5e2f\u57df” \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,9],"tags":[],"class_list":["post-516","post","type-post","status-publish","format-standard","hentry","category-8","category-9"],"_links":{"self":[{"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=\/wp\/v2\/posts\/516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=516"}],"version-history":[{"count":18,"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=\/wp\/v2\/posts\/516\/revisions"}],"predecessor-version":[{"id":954,"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=\/wp\/v2\/posts\/516\/revisions\/954"}],"wp:attachment":[{"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bi.appi.keio.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}