{"id":6620,"date":"2022-03-16T15:26:11","date_gmt":"2022-03-16T06:26:11","guid":{"rendered":"https:\/\/www11.ieice.org\/cs\/ap\/wp\/?page_id=6620"},"modified":"2025-12-05T18:48:46","modified_gmt":"2025-12-05T09:48:46","slug":"nakagami-rice_fading","status":"publish","type":"page","link":"https:\/\/www.ieice.org\/cs\/ap\/misc\/denpan-db\/prop_model_db\/model_list\/nakagami-rice_fading\/","title":{"rendered":"\u4ef2\u4e0a-\u30e9\u30a4\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0"},"content":{"rendered":"
<\/div>

<\/path><\/svg><\/i> \"Loading\"<\/p>

<\/div>(since 2025\/12\/5)<\/p>\n\n\n\n

\u30e2\u30c7\u30eb\u306e\u6982\u8981<\/h3>\n\n\n\n

\u79fb\u52d5\u901a\u4fe1\u74b0\u5883\u306b\u304a\u3051\u308b\u53d7\u4fe1\u4fe1\u53f7\u5f37\u5ea6\u306e\u5909\u52d5\u306f\u3001\u305d\u306e\u767a\u751f\u30e1\u30ab\u30cb\u30ba\u30e0\u3001\u304a\u3088\u3073\u3001\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u305d\u306e\u5909\u52d5\u306e\u7a7a\u9593\u7684\u30b9\u30b1\u30fc\u30eb\u306b\u3088\u308a\u3001\u77ac\u6642\u5909\u52d5(\u30de\u30eb\u30c1\u30d1\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0)\u3001\u77ed\u7a7a\u9593\u4e2d\u592e\u5024\u5909\u52d5(\u30b7\u30e3\u30c9\u30a6\u30a4\u30f3\u30b0)\u3001\u9577\u533a\u9593\u5909\u52d5(\u8ddd\u96e2\u7279\u6027)\u3001\u306e3\u8981\u7d20\u306b\u5206\u985e\u3067\u304d\u308b<\/a>\u3002<\/p>\n\n\n\n

\u30de\u30eb\u30c1\u30d1\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u3092\u30e2\u30c7\u30eb\u5316\u3059\u308b\u306b\u3042\u305f\u308a\u3001\u76f4\u63a5\u6ce2\u306e\u6709\u7121\u306b\u3088\u3063\u3066\u4e00\u822c\u306b\u4e8c\u3064\u306e\u30e2\u30c7\u30eb\u304c\u8003\u3048\u3089\u308c\u3066\u3044\u308b\u3002\u76f4\u63a5\u6ce2\u306e\u7121\u3044\u53cd\u5c04\u30fb\u56de\u6298\u6ce2\u306a\u3069\u306e\u30de\u30eb\u30c1\u30d1\u30b9\u306e\u307f\u306b\u3088\u3063\u3066\u4f1d\u642c\u8def\u304c\u5f62\u6210\u3055\u308c\u308b\u74b0\u5883\u3092\u3001\u30ec\u30a4\u30ea\u30fc\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3001\u76f4\u63a5\u6ce2\u304c\u5b58\u5728\u3057\u305d\u308c\u306b\u30de\u30eb\u30c1\u30d1\u30b9\u304c\u91cd\u7573\u3059\u308b\u74b0\u5883\u3092\u3001\u4ef2\u4e0a-\u30e9\u30a4\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3068\u3001\u547c\u3073\u3001\u305d\u308c\u305e\u308c\u306e\u74b0\u5883\u306e\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u30e2\u30c7\u30eb\u306f\u3001\u30ec\u30a4\u30ea\u30fc\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u30e2\u30c7\u30eb<\/a> \u3001\u4ef2\u4e0a-\u30e9\u30a4\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u30e2\u30c7\u30eb\u3068\u547c\u3070\u308c\u308b\u3002\u30ec\u30a4\u30ea\u30fc\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u30e2\u30c7\u30eb\u306f\u76f4\u63a5\u6ce2\u304c\u7121\u3044\u3053\u3068\u304b\u3089\u3001\u4e00\u822c\u306b\u4ef2\u4e0a-\u30e9\u30a4\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u30e2\u30c7\u30eb\u3088\u308a\u3082\u901a\u4fe1\u306b\u306f\u53b3\u3057\u3044\u74b0\u5883\u3068\u306a\u308b\u3002\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u5b89\u5168\u30b5\u30a4\u30c9\u306b\u305f\u3063\u305f\u3001\u3064\u307e\u308a\u4f59\u88d5\u3092\u3082\u3063\u305f\u3001\u8a2d\u8a08\u3092\u3059\u308b\u306e\u304c\u901a\u5e38\u3067\u3042\u308a\u3001\u56de\u7dda\u8a2d\u8a08\u3084\u65b9\u5f0f\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306a\u3069\u306e\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u3067\u306f\u3001\u30ec\u30a4\u30ea\u30fc\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u30e2\u30c7\u30eb\u304c\u7528\u3044\u3089\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n\n\n\n

\u4ef2\u4e0a-\u30e9\u30a4\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u74b0\u5883\u3068\u306a\u308b\u7121\u7dda\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u306e\u4f8b\u3068\u3057\u3066\u4ee5\u4e0b\u304c\u6319\u3052\u3089\u308c\u308b\u3002
\u30fb\u79fb\u52d5\u4f53\u885b\u661f\u901a\u4fe1
\u30fb\u7121\u7ddaLAN\u306a\u3069\u5c4b\u5185\u7121\u7dda\u901a\u4fe1
\u30fb\u7121\u7dda\u30a2\u30af\u30bb\u30b9\u30b7\u30b9\u30c6\u30e0
\u30fb\u30df\u30ea\u6ce2\u79fb\u52d5\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u6570\u5f0f<\/h3>\n\n\n\n

\u2022\u632f\u5e45\u5206\u5e03:\\(f_r (r)\\)<\/p>\n\n\n\n

\\(
f_r (r)=\\frac{r}{\\sigma^2} \\exp \u2061\\left( – \\frac{a^2+r^2}{2\\sigma^2} \\right) I_0 \\left( \\frac{ar}{\\sigma^2} \\right)
\\tag{1}
\\)
<\/em>\u3000(\\(I_0\\)\uff1a\u7b2c1\u7a2e0\u6b21\u5909\u5f62\u30d9\u30c3\u30bb\u30eb\u95a2\u6570)<\/p>\n\n\n\n

\u2022\u4f4d\u76f8\u5206\u5e03:\\(f_\\theta (\\theta)\\)
<\/em>\\(
f_\\theta (\\theta) = \\frac{1}{2 \\pi} \\exp \u2061( – \\frac{a^2}{2\\sigma^2} ) [ 1+\\sqrt{\\frac{\\pi}{2}} \\frac{a \\cos\u2061 \\theta}{\\sigma} \\exp \u2061( \\frac{a^2 \\cos^2\u2061\\theta}{2\\sigma^2} ) \\{ 1+{\\rm erf} \u2061( \\frac{a \\cos\u2061\\theta}{\\sqrt{2} \\sigma} ) \\} ]
\\tag{2}
\\)
<\/em>\u3000(\\( {\\rm erf} \\)\u2061\uff1a \u8aa4\u5dee\u95a2\u6570)<\/p>\n\n\n\n

\u2022[\u5e73\u5747\u96fb\u529b]=\\(a^2+2\\sigma^2\\)<\/p>\n\n\n\n

\u2022\u30e9\u30a4\u30b9\u30d5\u30a1\u30af\u30bf(K\u30d5\u30a1\u30af\u30bf):\\(K\u2261\\frac{a^2}{2\\sigma^2}\\)<\/p>\n\n\n\n

\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306a\u3069\u3067\u306f\u3001\u76f4\u63a5\u6ce2\u3092\\(a\\)(\u5b9a\u5e38\u6ce2)\u3001\u6563\u4e71\u6ce2\u3092\u30ec\u30a4\u30ea\u30fc\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u306b\u6cbf\u3046\u78ba\u7387\u5909\u6570\\(s\\)(\\(a\\)\u304a\u3088\u3073\\(s\\)\u306e\u5e73\u5747\u96fb\u529b\u306f1\u3068\u3059\u308b)\u3068\u3057\u3066\u3001\u4ef2\u4e0a-\u30e9\u30a4\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u306b\u5f93\u3046\u78ba\u7387\u5909\u6570\\(z\\)\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066\u751f\u6210\u3059\u308b\u5834\u5408\u3082\u591a\u3044\u3002\u3053\u306e\u5834\u5408\\(z\\)\u306e\u5e73\u5747\u96fb\u529b\u306f1\u3068\u306a\u308b\u3002
\\(
z = \\sqrt{\\frac{K}{1+K}} a + \\sqrt{\\frac{1}{1+K}} s
\\tag{3}
\\)<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u30d1\u30e9\u30e1\u30fc\u30bf<\/h3>\n\n\n\n
\u8a18\u53f7<\/td>\u30d1\u30e9\u30e1\u30fc\u30bf\u8aac\u660e[\u5358\u4f4d]<\/td><\/tr>
\\(K\\)<\/td>\u30e9\u30a4\u30b9\u30d5\u30a1\u30af\u30bf (\u76f4\u63a5\u6ce2\u96fb\u529b\/\u5e73\u5747\u6563\u4e71\u6ce2\u96fb\u529b)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u6ce8\u610f\uff1a\u4e0a\u306e\u56f3\u3067\u306f\u3001\u5b9a\u5e38\u6ce2\u306e\u632f\u5e45\\(a\\)\u3068\u6563\u4e71\u6ce2\u96fb\u529b\\(2\\sigma^2\\)\u3092\u7528\u3044\u3066\u8868\u3057\u3066\u3044\u308b\u304c\u3001\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u306b\u3088\u308b\u4fe1\u53f7\u306e\u5206\u5e03\u306f\u4e21\u96fb\u529b\u306e\u6bd4\u3067\u3042\u308b\\(K\\)\u306e\u307f\u306b\u4f9d\u5b58\u3059\u308b\u3002\u3064\u307e\u308a\u3001\u4ef2\u4e0a-\u30e9\u30a4\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u306e\u672c\u8cea\u7684\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\\(K\\)\u4e00\u3064\u3060\u3051\u3067\u3042\u308b\u3002<\/p>\n\n\n\n

\u8a08\u7b97\u4f8b<\/h3>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n

\u53c2\u7167<\/h2>\n\n\n\n

\u591a\u304f\u306e\u6587\u732e\u304c\u3042\u308b\u304c\u3001\u4f8b\u3068\u3057\u3066\u4ee5\u4e0b\u304c\u3042\u308b\u3002<\/p>\n\n\n\n

\u5510\u6ca2\u597d\u7537, \u30c7\u30a3\u30b8\u30bf\u30eb\u79fb\u52d5\u901a\u4fe1\u306e\u96fb\u6ce2\u4f1d\u642c\u57fa\u790e(\u6539\u8a02\u7248)\u7b2c6\u7ae0, \u30b3\u30ed\u30ca\u793e, 2016.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30e2\u30c7\u30eb\u306e\u6982\u8981 \u79fb\u52d5\u901a\u4fe1\u74b0\u5883\u306b\u304a\u3051\u308b\u53d7\u4fe1\u4fe1\u53f7\u5f37\u5ea6\u306e\u5909\u52d5\u306f\u3001\u305d\u306e\u767a\u751f\u30e1\u30ab\u30cb\u30ba\u30e0\u3001\u304a\u3088\u3073\u3001\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u305d\u306e\u5909\u52d5\u306e\u7a7a\u9593\u7684\u30b9\u30b1\u30fc\u30eb\u306b\u3088\u308a\u3001\u77ac\u6642\u5909\u52d5(\u30de\u30eb\u30c1\u30d1\u30b9\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0)\u3001\u77ed\u7a7a\u9593\u4e2d\u592e\u5024\u5909\u52d5(\u30b7\u30e3\u30c9\u30a6\u30a4\u30f3\u30b0)\u3001\u9577\u533a\u9593\u5909\u52d5(\u8ddd\u96e2\u7279 […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":12073,"menu_order":28,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-6620","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/6620","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/comments?post=6620"}],"version-history":[{"count":21,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/6620\/revisions"}],"predecessor-version":[{"id":14871,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/6620\/revisions\/14871"}],"up":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/12073"}],"wp:attachment":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/media?parent=6620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}