{"id":6664,"date":"2022-03-16T15:26:30","date_gmt":"2022-03-16T06:26:30","guid":{"rendered":"https:\/\/www11.ieice.org\/cs\/ap\/wp\/?page_id=6664"},"modified":"2025-12-05T18:39:14","modified_gmt":"2025-12-05T09:39:14","slug":"cost231_extended_hata","status":"publish","type":"page","link":"https:\/\/www.ieice.org\/cs\/ap\/misc\/denpan-db\/prop_model_db\/model_list\/cost231_extended_hata\/","title":{"rendered":"COST 231 Extended Hata Model"},"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

\u3000\u5965\u6751-\u79e6\u30e2\u30c7\u30eb\u306e\u9069\u7528\u3067\u304d\u308b\u5468\u6ce2\u6570\u7bc4\u56f2\u306f150MHz\u304b\u30891500MHz\u307e\u3067\u3068\u306a\u3063\u3066\u3044\u308b\uff0e\u305d\u308c\u306b\u5bfe\u3057\uff0c1500MHz\u304b\u30892000MHz\u306e\u4f1d\u642c\u6e2c\u5b9a\u7d50\u679c\u3092\u8003\u616e\u3057\u3066\u9069\u7528\u5468\u6ce2\u6570\u5e2f\u3092\u62e1\u5f35\u3057\u305f\u3082\u306e\u304cCOST 231 Extended Hata Model[1]\u3067\u3042\u308b\uff0e\u30e2\u30c7\u30eb\u306e\u69cb\u6210\u306f\u5965\u6751-\u79e6\u30e2\u30c7\u30eb\u3068\u540c\u69d8\u306b\u306a\u3063\u3066\u304a\u308a\uff0c\u5468\u6ce2\u6570\uff0c\u57fa\u5730\u5c40\u30a2\u30f3\u30c6\u30ca\u9ad8\uff0c\u79fb\u52d5\u5c40\u30a2\u30f3\u30c6\u30ca\u9ad8\u7b49\u306e\u901a\u4fe1\u6761\u4ef6\u306b\u5bfe\u3057\u3066\uff0c\u5927\u90fd\u5e02\u30fb\u4e2d\u5c0f\u90fd\u5e02\u7b49\u306e\u901a\u4fe1\u74b0\u5883\u306b\u5fdc\u3058\u305f\u88dc\u6b63\u5024\u3092\u8003\u616e\u3057\u3066\u7d71\u8a08\u7684\u306a\u4f1d\u642c\u640d\u5931\u5024\u3092\u8a08\u7b97\u3059\u308b\uff0e<\/p>\n\n\n\n

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

\u4f1d\u642c\u640d\u5931(dB)\uff1a<\/p>\n\n\n\n

\\(
L_p = 46.3 + 33.9 \\log \u2061f – 13.82 \\log\u2061 h_b – a(h_m) + (44.9 – 6.55 \\log\u2061 h_b) \\log\u2061 d + C_M
\\tag{1}
\\)<\/p>\n\n\n\n

\\(C_M\\)\u306f\u90fd\u5e02\u74b0\u5883\u306b\u5fdc\u3058\u305f\u88dc\u6b63\u5024\u3067\u3042\u308a\uff0c\u4ee5\u4e0b\u306e\u5024\u3092\u53d6\u308b<\/p>\n\n\n\n

\u3000\u4e2d\u5c0f\u90fd\u5e02\uff1a\\(C_M=0\\)
\u3000\u5927\u90fd\u5e02\uff1a\\(C_M=3\\)<\/p>\n\n\n\n

\\(a(h_m)\\)\u306f\u79fb\u52d5\u5c40\u9ad8\u306b\u5bfe\u3059\u308b\u88dc\u6b63\u9805\u3067\u3042\u308a\uff0c\u90fd\u5e02\u74b0\u5883\u306b\u5fdc\u3058\u3066\u4ee5\u4e0b\u306e\u5f0f\u3067\u5b9a\u7fa9\u3055\u308c\u308b (\u5965\u6751-\u79e6\u30e2\u30c7\u30eb\u3068\u540c\u69d8) <\/p>\n\n\n\n

\u3000\u4e2d\u5c0f\u90fd\u5e02\uff1a
\\(
a(h_m) = (1.1 \\log\u2061 f – 0.7) h_m – (1.56 \\log \u2061f – 0.8)
\\tag{2}
\\)<\/p>\n\n\n\n

\u3000\u5927\u90fd\u5e02\uff1a
\\(
a(h_m) = 8.29 [\\log\u2061 (1.54 h_m)]^2 – 1.1 \\quad ( f\u2264400{\\rm MHz})
\\tag{3}
\\)
\\(
a(h_m) = 3.2 [\\log \u2061(11.75 h_m)]^2 – 4.97 \\quad ( 400{\\rm MHz}<f )
\\tag{4}
\\)<\/p>\n\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>\u9069\u7528\u7bc4\u56f2<\/td><\/tr>
\\(f\\)<\/td>\u5468\u6ce2\u6570<\/td>(MHz\u5358\u4f4d\uff0c1500\uff5e2000 MHz)<\/td><\/tr>
\\(h_b\\)<\/td>\u57fa\u5730\u5c40\u30a2\u30f3\u30c6\u30ca\u9ad8<\/td>(m\u5358\u4f4d\uff0c30\uff5e120 m)<\/td><\/tr>
\\(h_m\\)<\/td>\u79fb\u52d5\u5c40\u30a2\u30f3\u30c6\u30ca\u9ad8<\/td>(m\u5358\u4f4d\uff0c1\uff5e10 m)<\/td><\/tr>
\\(d\\)<\/td>\u8ddd\u96e2<\/td>(km\u5358\u4f4d\uff0c1\uff5e20km)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

\u53c2\u7167<\/h2>\n\n\n\n[1] COST Action 231 – Digital mobile radio towards future generation systems – Final report. Luxembourg: Office for Official Publications of the European Communities, 1999.<\/p>\n\n\n\n[2]\u660e\u5c71 \u54f2 (\u8457), \u4f0a\u85e4 \u6cf0\u5b8f (\u8457), \u4e95\u539f \u4fca\u592b (\u8457), \u5c0f\u5ddd \u82f1\u4e00 (\u8457, \u7de8\u96c6), \u5510\u6ca2 \u597d\u7537 (\u8457, \u7de8\u96c6), \u6cb3\u5d0e \u5584\u4e00\u90ce (\u8457), & 8 \u305d\u306e\u4ed6, \u201c\u96fb\u6ce2\u4f1d\u642c\u30cf\u30f3\u30c9\u30d6\u30c3\u30af,\u201d \u30ea\u30a2\u30e9\u30a4\u30ba\u7406\u5de5\u30bb\u30f3\u30bf\u30fc. 1994.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30e2\u30c7\u30eb\u306e\u6982\u8981 \u3000\u5965\u6751-\u79e6\u30e2\u30c7\u30eb\u306e\u9069\u7528\u3067\u304d\u308b\u5468\u6ce2\u6570\u7bc4\u56f2\u306f150MHz\u304b\u30891500MHz\u307e\u3067\u3068\u306a\u3063\u3066\u3044\u308b\uff0e\u305d\u308c\u306b\u5bfe\u3057\uff0c1500MHz\u304b\u30892000MHz\u306e\u4f1d\u642c\u6e2c\u5b9a\u7d50\u679c\u3092\u8003\u616e\u3057\u3066\u9069\u7528\u5468\u6ce2\u6570\u5e2f\u3092\u62e1\u5f35\u3057\u305f\u3082\u306e\u304cCOST 231 Ex […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":12073,"menu_order":22,"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-6664","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/6664","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=6664"}],"version-history":[{"count":13,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/6664\/revisions"}],"predecessor-version":[{"id":14863,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/6664\/revisions\/14863"}],"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=6664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}