{"id":8355,"date":"2023-04-28T09:52:40","date_gmt":"2023-04-28T00:52:40","guid":{"rendered":"https:\/\/www11.ieice.org\/cs\/ap\/wp\/?page_id=8355"},"modified":"2025-12-05T19:17:28","modified_gmt":"2025-12-05T10:17:28","slug":"gaseous_absorption","status":"publish","type":"page","link":"https:\/\/www.ieice.org\/cs\/ap\/misc\/denpan-db\/prop_model_db\/model_list\/gaseous_absorption\/","title":{"rendered":"\u5927\u6c17\u30ac\u30b9\u5438\u53ce"},"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\u4ee5\u4e0b\u306f\u3001ITU-R\u306b\u304a\u3051\u308b\u5927\u6c17\u30ac\u30b9\u5438\u53ce\u306b\u3088\u308b\u6e1b\u8870\u91cf\u306e\u6a19\u6e96\u30e2\u30c7\u30eb\u3092\u898f\u5b9a\u3059\u308bITU\u52e7\u544a\u306e\u6700\u65b0\u7248ITU-R P.676-13[1]\u3092\u30d9\u30fc\u30b9\u3068\u3057\u3066\u8a18\u8ff0\u3057\u305f\u3082\u306e\u3067\u3042\u308b\u3002\u306a\u304a\u3001\u540c\u52e7\u544a\u306e\u904e\u53bb\u306e\u7248\u3067\u306f\u3001\u7570\u306a\u308b\u30e2\u30c7\u30eb\u3082\u8a18\u8ff0\u3055\u308c\u3066\u3044\u305f\u3002\u7279\u306b\u3001ITU-R P.676-3[2]\u306eAnnex 2\u306b\u793a\u3055\u308c\u305f\u30e2\u30c7\u30eb\u306f\u4ed6\u6587\u732e\u3067\u3082\u5f15\u7528\u3055\u308c\u3066\u3044\u308b\u3002\u305f\u3068\u3048\u3070\u3001[3]\u3001[4]\u306a\u3069\u3002<\/p>\n\n\n\n

\u3000\u5730\u8868\u306b\u304a\u3051\u308b\u5927\u6c17\u306e\u7d44\u6210\u306f\u3001\u7a92\u7d20(\u7d0478%)\u3001\u9178\u7d20(\u7d0421%)\u3001\u305d\u306e\u4ed6\u306e\u6c17\u4f53(\u5408\u8a08\u7d041%)\u3067\u3042\u308b\u3002\u3053\u306e\u6df7\u5408\u6c17\u4f53\u306b\u3001\u542b\u6709\u91cf\u304c\u5927\u304d\u304f\u5909\u52d5\u3059\u308b\u6c34\u84b8\u6c17\u3092\u52a0\u3048\u305f\u3082\u306e\u304c\u5730\u7403\u5927\u6c17\u3067\u3042\u308b\u3002\u5927\u6c17\u3092\u69cb\u6210\u3059\u308b\u3053\u308c\u3089\u306e\u6c17\u4f53\u306f\u3001\u305d\u306e\u5206\u5b50\u306e\u56de\u8ee2\u306b\u3088\u308a\u96fb\u6ce2\u5438\u53ce\u3092\u767a\u751f\u3059\u308b\u3002\u3053\u306e\u6c17\u4f53\u306b\u3088\u308b\u96fb\u6ce2\u5438\u53ce\u306e\u652f\u914d\u7684\u306a\u8981\u56e0\u306f\u6c34\u84b8\u6c17\u304a\u3088\u3073\u9178\u7d20\u306b\u3088\u308b\u3082\u306e\u3067\u3042\u308b\u3002\u3053\u3053\u3067\u306f\u307e\u305a\u3001\u3053\u308c\u3089\u306b\u3088\u308b\u6e1b\u8870\u91cf\u3092\u8a08\u7b97\u3059\u308b\u8a73\u7d30\u306a\u8a08\u7b97\u5f0f(Line-by-line calculation)\u306b\u3064\u3044\u3066\u8ff0\u3079\u308b\u3002Line-by-line calculation\u306f\u30011000GHz\u307e\u3067\u3092\u5bfe\u8c61\u3068\u3057\u3001\u5927\u6c17\u30ac\u30b9\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570\\(\\gamma\\)(\u5358\u4f4d\u8ddd\u96e2\u3042\u305f\u308a\u306e\u6e1b\u8870\u91cf\u30fbdB\/km)\u3092\u8a08\u7b97\u3059\u308b\u90e8\u5206\u3068\u3001\u6e1b\u8870\u4fc2\u6570\u3092\u8ddd\u96e2\u3067\u7a4d\u5206\u3057\u7dcf\u6e1b\u8870\u91cf\u3092\u6c42\u3081\u308b\u90e8\u5206\u304b\u3089\u6210\u308b\u3002\u3053\u306e\u7dcf\u6e1b\u8870\u91cf\u3092\u6c42\u3081\u308b\u90e8\u5206\u306b\u3064\u3044\u3066\u306f\u3001350GHz\u307e\u3067\u3092\u5bfe\u8c61\u3068\u3057\u305f\u7c21\u6613\u306a\u8fd1\u4f3c\u8a08\u7b97\u5f0f\u3082\u4e0e\u3048\u3089\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u306b\u3064\u3044\u3066\u3082\u3053\u3053\u3067\u793a\u3059\u3002<\/p>\n\n\n\n

\u30001,000 GHz \u307e\u3067\u306e\u5468\u6ce2\u6570\u306b\u304a\u3051\u308b\u4e7e\u71e5\u5927\u6c17\u3068\u6c34\u84b8\u6c17\u306b\u3088\u308b\u6e1b\u8870\u306f\u3001\u4efb\u610f\u306e\u5727\u529b\u30fb\u6e29\u5ea6\u30fb\u6e7f\u5ea6\u306b\u5bfe\u3057\u3066\u3001\u6b63\u78ba\u306b\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u9178\u7d20\u3068\u6c34\u84b8\u6c17\u306e\u500b\u3005\u306e\u5438\u53ce\u7dda\u306e\u96c6\u5408\u4f53\u306e\u30b9\u30da\u30af\u30c8\u30eb\u3092\u652f\u914d\u7684\u306a\u8981\u7d20\u3068\u3057\u3001\u305d\u308c\u306b\u300110 GHz \u4ee5\u4e0b\u306e\u9178\u7d20\u306e\u975e\u5171\u9cf4\u30c7\u30d0\u30a4\u30b9\u30da\u30af\u30c8\u30eb\u3001100 GHz \u4ee5\u4e0a\u306e\u5727\u529b\u306b\u8d77\u56e0\u3059\u308b\u7a92\u7d20\u306b\u3088\u308b\u6e1b\u8870\u3001\u904e\u5270\u6c34\u84b8\u6c17\u306b\u3088\u308b\u5438\u53ce\u3092\u793a\u3059\u9023\u7d9a\u30b9\u30da\u30af\u30c8\u30eb\u3001\u306a\u3069\u304c\u52a0\u308f\u308b\u3002\u56f3 1 \u306f\u3001\u6a19\u6e96\u5927\u6c17(\u5727\u529b1,013.25hPa\u3001\u6e29\u5ea615\u2103\u3001\u6c34\u84b8\u6c17\u5bc6\u5ea67.5g\/m3<\/sup>(Standard)\u304a\u3088\u3073\u4e7e\u71e5\u5927\u6c17(Dry)\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570\u3092\u793a\u3057\u3066\u3044\u308b\u3002\u4e7e\u71e5\u5927\u6c17\u306b\u3088\u308b\u5438\u53ce\u306f\u9178\u7d20\u306b\u3088\u308b\u5438\u53ce\u3068\u8003\u3048\u3089\u308c\u3001\u7279\u306b60GHz\u5468\u8fba\u3067\u5927\u304d\u306a\u5024\u3092\u3068\u308b\u3002\u3053\u306e\u9178\u7d20\u306e\u5438\u53ce\u7dda\u306f\u591a\u6570\u306e\u5438\u53ce\u7dda\u304b\u3089\u6210\u308b\u304c\u3001\u5730\u8868\u3067\u306e\u5727\u529b\u72b6\u614b\u3067\u306f\u305d\u308c\u3089\u306f\u5408\u4f53\u3057\u3066\u4e00\u3064\u306e\u5e83\u3044\u5438\u53ce\u5e2f\u3092\u5f62\u6210\u3057\u3066\u3044\u308b\u3002\u9ad8\u5ea6\u304c\u4e0a\u304c\u308b\u306b\u3064\u308c\u3066\u5727\u529b\u304c\u4e0b\u304c\u308a\u3001\u500b\u3005\u306e\u5438\u53ce\u7dda\u304c\u5206\u89e3\u3055\u308c\u3066\u3044\u304f\u3002\u3053\u306e\u69d8\u5b50\u3092\u56f32\u306b\u793a\u3059\u3002\u305d\u306e\u4ed6\u306e\u5206\u5b50\u306b\u3088\u308b\u5438\u53ce\u7dda\u3082\u5b58\u5728\u3059\u308b\u304c\u3001\u4e00\u822c\u7684\u306a\u5927\u6c17\u3067\u306f\u3053\u308c\u3089\u306e\u5f71\u97ff\u306f\u5c0f\u3055\u304f\u3001\u3053\u3053\u3067\u8ff0\u3079\u308b\u30e2\u30c7\u30eb\u3067\u306f\u5bfe\u8c61\u3068\u3057\u3066\u3044\u306a\u3044\u3002<\/p>\n\n\n

\n
\"\"
\u56f31 1,000GHz\u4ee5\u4e0b\u306e\u5927\u6c17\u30ac\u30b9\u5438\u53ce\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570<\/span><\/figcaption><\/figure><\/div>\n\n
\n
\"\"
\u56f32 60GHz\u5468\u8fba\u306e\u9178\u7d20\u306b\u3088\u308b\u5438\u53ce<\/span><\/figcaption><\/figure><\/div>\n\n\n

\u5927\u6c17\u30ac\u30b9\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570<\/h3>\n\n\n\n

\u5927\u6c17\u30ac\u30b9\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570\uff1a\\(\\gamma\\)
\\(
\\gamma=\\gamma_o+\\gamma_w=0.1820f\\left(N^{\\prime\\prime}_{Oxygen}(f)+N^{\\prime\\prime}_{WaterVapour}(f)\\right)\\quad {\\rm (dB\/km)}\\\\
\\tag{1}
\\)<\/p>\n\n\n\n

  \\(\\gamma_o\\)\uff1a\u4e7e\u71e5\u5927\u6c17\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570
  \\(\\gamma_w\\)\uff1a\u6c34\u84b8\u6c17\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570<\/p>\n\n\n\n

\\(
N^{\\prime\\prime}_{Oxygen}(f)={\\displaystyle\\sum_{i(Oxygen)}}\\left(S_iF_i+N^{\\prime\\prime}_{D}(f)\\right)\\\\\\tag{2}
\\)<\/p>\n\n\n\n

\\(
N^{\\prime\\prime}_{WaterVapour}(f)={\\displaystyle\\sum_{i(WaterVapour)}}S_iF_i\\\\\\tag{3}
\\)<\/p>\n\n\n\n

  \\(S_i\\), \\(F_i\\)\uff1a\\(i\\)\u756a\u76ee\u306e\u9178\u7d20\u307e\u305f\u306f\u6c34\u84b8\u6c17\u306e\u5438\u53ce\u7dda\u306e\u5f37\u5ea6\u3068\u305d\u306e\u5f62\u72b6\u4fc2\u6570(shape factor)<\/p>\n\n\n\n

\\(
S_i=\\left\\{
\\begin{array}{ll}
a_1\\times10^{-7}p\\theta^3\\exp\\left[a_2(1-\\theta)\\right]&(\u9178\u7d20\u306e\u5834\u5408)\\\\
b_1\\times10^{-1}e\\theta^{3.5}\\exp\\left[b_2(1-\\theta)\\right]&(\u6c34\u84b8\u6c17\u306e\u5834\u5408)
\\end{array}
\\right.\\\\\\tag{4}
\\)<\/p>\n\n\n\n

  \\(\\theta\\)\uff1a\\(300\/T\\)<\/p>\n\n\n\n

\\(
F_i = \\frac{f}{f_i} \\left[ \\frac{\\Delta f – \\delta(f_i – f)}{(f_i – f)^2 + \\Delta f^2} + \\frac{\\Delta f – \\delta(f_i + f)}{(f_i + f)^2 + \\Delta f^2} \\right] \\
\\tag{5}
\\)<\/p>\n\n\n\n

  \\(f_i\\)\uff1a\\(i\\)\u756a\u76ee\u306e\u9178\u7d20\u307e\u305f\u306f\u6c34\u84b8\u6c17\u306e\u5438\u53ce\u7dda\u5468\u6ce2\u6570<\/p>\n\n\n\n

  \\(\\Delta f\\)\uff1a\u5438\u53ce\u7dda\u5e45<\/p>\n\n\n\n

\\(
\\Delta f = \\left\\{
\\begin{array}{ll}
a_3 \\times 10^{-4} \\left(p \\theta^{(0.8 – a_4)} + 1.1 e \\theta \\right) & (\u9178\u7d20\u306e\u5834\u5408) \\\\
b_3 \\times 10^{-4} \\left(p \\theta^{b_4} + b_5 e \\theta^{b_6} \\right) & (\u6c34\u84b8\u6c17\u306e\u5834\u5408)
\\end{array}
\\right. \\
\\tag{6}
\\)<\/p>\n\n\n\n

\u9178\u7d20\u5438\u53ce\u7dda\u306e\u30bc\u30fc\u30de\u30f3\u5206\u88c2\u3068\u6c34\u84b8\u6c17\u5438\u53ce\u7dda\u306e\u30c9\u30c3\u30d7\u30e9\u30fc\u5e83\u304c\u308a\u3092\u8003\u616e\u3059\u308b\u5834\u5408\u306b\u306f\\(\\Delta f\\)\u306b\u3064\u3044\u3066\u4ee5\u4e0b\u306e\u4fee\u6b63\u304c\u5fc5\u8981\u3002<\/p>\n\n\n\n

\\(
\\Delta f = \\left\\{
\\begin{array}{ll}
\\sqrt{\\Delta f^2 + 2.25 \\times 10^{-6}} & (\u9178\u7d20\u306e\u5834\u5408) \\\\
0.535 \\Delta f + \\sqrt{0.217 \\Delta f^2 + \\frac{2.1316 \\times 10^{-12} f_i^2}{\\theta}} & (\u6c34\u84b8\u6c17\u306e\u5834\u5408)
\\end{array}
\\right. \\
\\tag{7}
\\)<\/p>\n\n\n\n

\\(\\delta\\)\uff1a\u9178\u7d20\u5438\u53ce\u7dda\u9593\u306e\u5e72\u6e09\u52b9\u679c\u3092\u8868\u3059\u88dc\u6b63\u4fc2\u6570<\/p>\n\n\n\n

\\(
\\delta = \\left\\{
\\begin{array}{ll}
( a_5 + a_6 \\theta ) \\times 10^{-4} (p + e ) \\theta^{0.8} & (\u9178\u7d20\u306e\u5834\u5408) \\\\
0 & (\u6c34\u84b8\u6c17\u306e\u5834\u5408)
\\end{array}
\\right. \\
\\tag{8}
\\)<\/p>\n\n\n\n

\\(p\\)\u3001\\(e\\)\u3001\\(T\\)\u306e\u5024\u306f\u3001\u5229\u7528\u53ef\u80fd\u3067\u3042\u308b\u306a\u3089\u3070\u3001\u30e9\u30b8\u30aa\u30be\u30f3\u30c7\u306a\u3069\u3067\u6e2c\u5b9a\u3055\u308c\u305f\u305d\u306e\u5730\u70b9\u306b\u304a\u3051\u308b\u5404\u5024\u306e\u9ad8\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u671b\u307e\u3057\u3044\u3002\u305d\u306e\u3088\u3046\u306a\u30c7\u30fc\u30bf\u304c\u5229\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u306b\u306f\u3001ITU\u52e7\u544aITU-R P.835 \u3067\u793a\u3055\u308c\u305f\u9069\u5207\u306a\u6a19\u6e96\u5927\u6c17\u3092\u4f7f\u7528\u3059\u308b\u3002\u306a\u304a\u3001\u5168\u5927\u6c17\u6e1b\u8870\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u306b\u3001\u9178\u7d20\u306b\u3088\u308b\u6e1b\u8870\u3068\u6c34\u84b8\u6c17\u306b\u3088\u308b\u6e1b\u8870\u306f\u540c\u3058\u6c34\u84b8\u6c17\u5206\u5727\u3092\u4f7f\u7528\u3057\u3066\u8a08\u7b97\u3059\u308b\u3053\u3068\u306b\u6ce8\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u4efb\u610f\u306e\u9ad8\u5ea6\u306b\u304a\u3051\u308b\u6c34\u84b8\u6c17\u5206\u5727\\(e\\)\u306f\u3001\u6c34\u84b8\u6c17\u5bc6\u5ea6\\(\\rho\\)\u3068\u6e29\u5ea6\\(T\\)\u304b\u3089\u3001\\(e=\\rho T\/216.7\\)\u3067\u4e0e\u3048\u3089\u308c\u308b\u3002<\/p>\n\n\n\n

\u9178\u7d20\u304a\u3088\u3073\u6c34\u84b8\u6c17\u306e\u5438\u53ce\u7dda\u306e\u3001\u5468\u6ce2\u6570\u30fb\u5f37\u5ea6\u30fb\u5f62\u72b6\u4fc2\u6570\u3001\u3092\u4e0e\u3048\u308b\u5f0f\u306e\u5404\u4fc2\u6570\u5024\uff1a\u88681\u304a\u3088\u3073\u88682<\/p>\n\n\n\n

\u3053\u306e\u5024\u306fITU-R P.676-13[1]\u306eMSWord\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u5165\u624b(\u30b3\u30d4\u30da)\u53ef\u80fd<\/p>\n\n\n\n

(\u88682\u306e\u6700\u7d42\u884c\uff1a1780GHz\u3092\u4e2d\u5fc3\u5468\u6ce2\u6570\u3068\u3059\u308b\u7591\u4f3c\u5438\u53ce\u7dda\u3002\u305d\u306e\u4e0b\u5074\u30b9\u30da\u30af\u30c8\u30eb\u304c1000GHz\u4ee5\u4e0b\u306e\u6c34\u84b8\u6c17\u5438\u53ce\u3092\u793a\u3059\u3002)<\/p>\n\n\n\n

  \\(N^{\\prime\\prime}_D(f)\\)\uff1a\u4e7e\u71e5\u5927\u6c17\u306e\u9023\u7d9a\u30b9\u30da\u30af\u30c8\u30eb\uff1a10GHz\u4ee5\u4e0b\u306e\u9178\u7d20\u306e\u975e\u5171\u9cf4\u30c7\u30d0\u30a4\u30b9\u30da\u30af\u30c8\u30eb+10GHz\u4ee5\u4e0a\u306e\u5727\u529b\u306b\u3088\u3063\u3066\u8a98\u8d77\u3055\u308c\u308b\u7a92\u7d20\u6e1b\u8870<\/p>\n\n\n\n

\\(
N^{\\prime\\prime}_D(f) = f p \\theta^2 \\left[ \\frac{6.14 \\times 10^{-5}}{d \\left[ 1 + \\left( \\frac{f}{d} \\right)^2 \\right]} + \\frac{1.4 \\times 10^{-12} p \\theta^{1.5} }{1 + 1.9 \\times 10^{-5} f^{1.5}} \\right] \\\\
\\tag{9}
\\)<\/p>\n\n\n\n

  \\(d\\)\uff1a\u30c7\u30d0\u30a4\u30b9\u30da\u30af\u30c8\u30eb\u306e\u5e45\u3092\u8868\u3059\u5909\u6570<\/p>\n\n\n\n

\\(
d = 5.6 \\times 10^{-4} (p + e) \\theta^{0.8} \\\\
\\tag{10}
\\)<\/p>\n\n\n

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

\u5168\u4f1d\u642c\u8def\u306e\u5927\u6c17\u30ac\u30b9\u6e1b\u8870(\u8a73\u7d30\u8a08\u7b97\u6cd5)<\/h3>\n\n\n\n

\u5168\u4f1d\u642c\u8def\u306e\u5927\u6c17\u30ac\u30b9\u6e1b\u8870\uff1a\\(A\\) (dB)<\/p>\n\n\n\n

(i)\u5730\u4e0a\u7cfb\u306e\u7121\u7dda\u4f1d\u642c\u8def\u3001\u3082\u3057\u304f\u306f\u3001\u5730\u8868\u306b\u8fd1\u3044\u9ad8\u5ea6\u5dee\u304c\u5c0f\u3055\u3044\u659c\u3081\u4f1d\u642c\u8def<\/p>\n\n\n\n

\\(
A = \\gamma r_0 = \\left( \\gamma_o + \\gamma_w \\right) r_0 \\\\
\\tag{11}
\\)<\/p>\n\n\n\n

(ii)\u9001\u4fe1\u70b9\u304a\u3088\u3073\u53d7\u4fe1\u70b9\u306e\u9ad8\u5ea6\u3092\\(h_1\\)\u304a\u3088\u3073\\(h_2\\)\u3068\u3057\u3066\u9ad8\u5ea6\u304c\u5897\u52a0\u3059\u308b\u5834\u5408(\\(h_2>h_1>0\\)(km)) (\u305f\u3068\u3048\u3070\u885b\u661f\u56de\u7dda\u4f1d\u642c\u8def)<\/p>\n\n\n\n

\\(
A = {\\displaystyle \\int_{h_1}^{h_2}} \\frac{\\gamma(h)}{\\sin \\varphi(h)} d h = {\\displaystyle \\int_{h_1}^{h_2}} \\frac{\\gamma(h)}{\\sqrt{1 – \\cos^2 \\varphi(h)}} dh \\\\
\\tag{12}
\\)<\/p>\n\n\n\n

\\(
\\cos \\varphi(h) = \\frac{( R_E + h_1 ) n(h_1)}{( R_E + h ) n(h)} \\cos \\varphi_1 \\\\
\\tag{13}
\\)<\/p>\n\n\n\n

  \\(\\gamma(h)\\)\uff1a\u9ad8\u5ea6\\(h\\)\u306b\u304a\u3051\u308b\u6e1b\u8870\u4fc2\u6570<\/p>\n\n\n\n

  \\(R_E\\)\uff1a\u5e73\u5747\u5024\u7403\u534a\u5f84(6371km)<\/p>\n\n\n\n

  \\(\\varphi_1\\)\uff1a\u9ad8\u5ea6\\(h_1\\)\u306b\u304a\u3051\u308b\u4ef0\u89d2<\/p>\n\n\n\n

  \\(n(h)\\)\uff1a\u9ad8\u5ea6\\(h\\)\u306b\u304a\u3051\u308b\u5c48\u6298\u7387<\/p>\n\n\n\n

\u4e0a\u5f0f\u306f\u7a4d\u5206\u5f62\u5f0f\u3067\u4e0e\u3048\u3066\u3044\u308b\u304c\u3001\u56f33\u306b\u793a\u3059\u3088\u3046\u306b\u3001\u5927\u6c17\u3092\u5c64\u72b6\u306b\u5206\u5272\u3057\u305f\u4e0a\u3067\u3001\u5404\u5c64\u4e2d\u3067\u306f\u6e1b\u8870\u91cf\u304a\u3088\u3073\u4f1d\u642c\u4ef0\u89d2\u306f\u4e00\u5b9a\u3067\u3042\u308b\u3068\u4eee\u5b9a\u3057\u3001\u3055\u3089\u306b\u5404\u5c64\u3092\u901a\u308b\u7d4c\u8def\u9577\u3092\u6c42\u3081\u3001\u5404\u5c64\u306e\u5358\u4f4d\u8ddd\u96e2\u3042\u305f\u308a\u6e1b\u8870\u91cf\u3068\u7d4c\u8def\u9577\u306e\u7a4d\u306e\u548c\u3092\u3068\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u96e2\u6563\u7684\u306a\u5024\u306e\u548c\u3068\u3057\u3066\u8868\u3059\u3002<\/p>\n\n\n\n

\\(
A = {\\displaystyle \\sum_{i=1}^{i_{\\rm max}}} a_i \\gamma_i \\\\
\\tag{14}
\\)<\/p>\n\n\n\n

  \\(\\gamma_i\\)\uff1a\\(i\\)\u756a\u76ee\u306e\u5206\u5272\u5c64\u306e\u6e1b\u8870\u4fc2\u6570<\/p>\n\n\n\n

  \\(a_i\\)\uff1a\\(i\\)\u756a\u76ee\u306e\u5206\u5272\u5c64\u306e\u4f1d\u642c\u8def\u9577<\/p>\n\n\n\n

\\(i\\)\u756a\u76ee\u306e\u5c64\u306b\u304a\u3044\u3066\u3001\u305d\u306e\u5c64\u4e2d\u306e\u5c48\u6298\u7387\\(n_i\\)\u3092\u4e00\u5b9a\u3001\u5c64\u306e\u539a\u3055\u3092\\(\\delta_i\\)\u3001\u5730\u7403\u4e2d\u5fc3\u304b\u3089\\(i\\)\u756a\u76ee\u306e\u5c64\u306e\u4e0b\u7aef\u307e\u3067\u306e\u8ddd\u96e2\u3092\\(r_i\\)\u3068\u3059\u308b\u3002<\/p>\n\n\n\n

  \\(a_i\\), <\/em>\\(\\alpha_i\\), \\(\\beta_{i+1}\\)\uff1a\u3053\u306e\u5c64\u3092\u901a\u904e\u3059\u308b\u4f1d\u642c\u8def\u9577\u3001\u3053\u306e\u5c64\u306e\u5165\u5c04\u89d2\u304a\u3088\u3073\u51fa\u5c04\u89d2<\/p>\n\n\n\n

\\(
a_i = -r_i \\cos \\beta_i + \\sqrt{r_i^2 \\cos^2 \\beta_i + 2 r_i \\delta_i + \\delta_i^2} \\\\
\\tag{15}
\\)
\\(
\\alpha_i = \\pi – \\cos^{-1} \\left( \\frac{-a_i – 2 r_i \\delta_i – \\delta_i^2}{2 a_i (r_i + \\delta_i)} \\right) = \\sin^{-1} \\left( \\frac{r_i}{r_i + \\delta_i} \\sin \\beta_i \\right) \\\\
\\tag{16}
\\)
\\(
\\beta_{i+1} = \\sin^{-1} \\left( \\frac{n_i}{n_{i+1}} \\sin \\alpha_i \\right) \\\\
\\tag{17}
\\)<\/p>\n\n\n\n

\\(\\beta_1=\\pi\/2-\\theta_s\\)\u3068\u3057\u3066\u4f1d\u642c\u7d4c\u8def\u3092\u8a08\u7b97\u3059\u308b\u3002\u5c48\u6298\u7387\u306e\u9ad8\u3055\u65b9\u5411\u5909\u5316\u306f\u3001\u9ad8\u9ad8\u5ea6\u306b\u6bd4\u3079\u3066\u5730\u4e0a\u4ed8\u8fd1\u306e\u65b9\u304c\u5927\u304d\u3044\u305f\u3081\u3001\u5c64\u306e\u539a\u3055\\(\\delta_i\\)\u306f\u3001\u5730\u4e0a\u306b\u8fd1\u3044\u307b\u3069\u5c0f\u3055\u304f\u3001\u9ad8\u5ea6\u304c\u5897\u3059\u306b\u3064\u308c\u3066\u5927\u304d\u304f(\u305f\u3068\u3048\u3070\u6307\u6570\u95a2\u6570\u7684\u306b)\u3059\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u308b\u3002\u5730\u4e0a\u3067\u306f10cm\u7a0b\u5ea6\u3001\u9ad8\u5ea6100km\u3067\u306f1km\u7a0b\u5ea6\u304c\u5fc5\u8981\u3068\u3055\u308c\u3001\u4e0a\u8a18\u306e\u5404\u5c64\u306e\u6e1b\u8870\u91cf\u306e\u548c\u306e\u8a08\u7b97\u306e\u4e0a\u9650\u306f100km\u3068\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n

\n
\"\"
\u56f33 \u5168\u4f1d\u642c\u8def\u306e\u5927\u6c17\u30ac\u30b9\u6e1b\u8870\u8a08\u7b97\u30e2\u30c7\u30eb<\/span><\/figcaption><\/figure><\/div>\n\n\n

\u8a73\u7d30\u8a08\u7b97\u6cd5\u306e\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 [GHz]<\/td>\uff5e1000GHz<\/td><\/tr>
\\(p\\)<\/td>\u4e7e\u71e5\u5927\u6c17\u5727[hPa]<\/td><\/td><\/tr>
\\(e\\)<\/td>\u6c34\u84b8\u6c17\u5206\u5727[hPa]<\/td><\/td><\/tr>
\\(T\\)<\/td>\u6c17\u6e29[K]<\/td><\/td><\/tr>
\\(\\theta_s\\)<\/td>\u5730\u8868\u306b\u304a\u3051\u308b\u885b\u661f\u4ef0\u89d2[rad]<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u9178\u7d20\u5438\u53ce\u77ac\u6642\u6e1b\u8870\u91cf\u306e\u8fd1\u4f3c\u8a08\u7b97\u6cd5<\/h3>\n\n\n\n

\u9178\u7d20\u5438\u53ce\u306b\u3088\u308b\u77ac\u6642\u6e1b\u8870\u91cf\uff1a\\(A_o\\)<\/p>\n\n\n\n

\\(
A_o(f, P_s, T_s, \\rho_{w_s}) = \\frac{\\gamma_o(f, P_s, T_s, e_s) \\cdot h_o(f, P_s, T_s, \\rho_{w_s})}{\\sin \\theta} \\\\
\\tag{18}
\\)
\\(
\\gamma_o = 0.1820 f N^{\\prime\\prime}_{Oxygen}(f) \\\\
\\tag{19}
\\)
\\(
h_o(f, P_s, T_s, \\rho_{w_s}) = a_o(f) + b_o(f) T_s + c_o(f) P_s + d_o(f) \\rho_{w_s} \\\\
\\tag{20}
\\)<\/p>\n\n\n\n

\u5404\u5468\u6ce2\u6570\u306b\u304a\u3051\u308b\\(h_o\\)(\u7b49\u4fa1\u4f1d\u642c\u8def\u9ad8)\u306e\u4fc2\u6570\\(a_o\\)\u3001\\(b_o\\)\u3001\\(c_o\\)\u3001\\(d_o\\)\uff1aITU-R\u52e7\u544aP.676-13\u306e\u30c7\u30fc\u30bf\u30d5\u30a1\u30a4\u30eb<\/a>\u53c2\u7167\u30021GHz\u304b\u3089350GHz \u307e\u3067\u306e\u7bc4\u56f2\u306b\u304a\u3044\u30660.5GHz\u30b9\u30c6\u30c3\u30d7\u3067\u5404\u4fc2\u6570\u306e\u5024\u304c\u793a\u3055\u308c\u3066\u3044\u308b\u3002\u6240\u671b\u306e\u5468\u6ce2\u6570\u306b\u304a\u3051\u308b\u5404\u4fc2\u6570\u306e\u5024\u306f\u793a\u3055\u308c\u305f\u5468\u6ce2\u6570\u306e\u9593\u3092\u7dda\u5f62\u88dc\u9593\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u6c42\u3081\u308b\u3002<\/p>\n\n\n\n

\u9178\u7d20\u5438\u53ce\u6e1b\u8870\u91cf\u306e\u7d2f\u7a4d\u5206\u5e03\u306e\u9178\u7d20\u5438\u8fd1\u4f3c\u8a08\u7b97\u6cd5<\/h3>\n\n\n\n

\u9178\u7d20\u5438\u53ce\u306b\u3088\u308b\u6e1b\u8870\u91cf\u7d2f\u7a4d\u5206\u5e03\u306e\\(p\\)%\u5024\uff1a\\(A_o\\)<\/p>\n\n\n\n

\\(
A_o(f, p) = \\frac{\\gamma_o(f, \\bar{P_s}, \\bar{T_s}, \\bar{e_s}) \\cdot h_o(f, P_s(p), T_s(p), \\rho_{w_s}(p))}{\\sin \\theta} \\\\
\\tag{21}
\\)
\\(
\\gamma_o = 0.1820 f N^{\\prime\\prime}_{Oxygen}(f) \\\\
\\tag{22}
\\)
\\(
h_o(f, P_s, T_s, \\rho_{w_s}) = a_o(f) + b_o(f) T_s(p) + c_o(f) P_s(p) + d_o(f) \\rho_{w_s}(p) \\\\
\\tag{23}
\\)<\/p>\n\n\n\n

\u7b49\u4fa1\u4f1d\u642c\u8def\u9ad8\\(h_o\\)\u306e\u8a08\u7b97\u306f\u3001\u77ac\u6642\u5024\u306e\u4ee3\u308f\u308a\u306b\u7d2f\u7a4d\u78ba\u7387\\(p\\)%\u5024\u3092\u7528\u3044\u3066\u8a08\u7b97\u3059\u308b\u3002\u5404\u4fc2\u6570\u306e\u5024\u306f\u540c\u3058\u3002<\/p>\n\n\n\n

\u6c34\u84b8\u6c17\u5438\u53ce\u77ac\u6642\u6e1b\u8870\u91cf\u306e\u8fd1\u4f3c\u8a08\u7b97\u6cd51<\/h3>\n\n\n\n

\u5fc5\u8981\u5165\u529b\u60c5\u5831\uff1a\u5730\u8868\u5927\u6c17\u5727\u3001\u5730\u8868\u6e29\u5ea6\u3001\u5730\u8868\u6c34\u84b8\u6c17\u5bc6\u5ea6\u306e\u77ac\u6642\u5024<\/p>\n\n\n\n

\u6c34\u84b8\u6c17\u5438\u53ce\u306b\u3088\u308b\u77ac\u6642\u6e1b\u8870\u91cf\uff1a\\(A_w\\)<\/p>\n\n\n\n

\\(
A_w(f, P_s, T_s, \\rho_{w_s}) = \\frac{\\gamma_w(f, P_s, T_s, e_s) \\cdot h_w(f)}{\\sin \\theta} \\\\
\\tag{24}
\\)
\\(
\\gamma_w = 0.1820 f N^{\\prime\\prime}_{WaterVapour}(f) \\\\
\\tag{25}
\\)
\\(
h_w(f)=Af+B+{\\displaystyle \\sum_{i=1}^3} \\frac{a_i}{(f-f_i)^2 + b_i} \\ (A = 5.6585 \\times 10^{-5}, B = 1.8348) \\\\
\\tag{26}
\\)<\/p>\n\n\n

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

\u77ac\u6642\u6c34\u84b8\u6c17\u5438\u53ce\u6e1b\u8870\u91cf\u306e\u8fd1\u4f3c\u8a08\u7b97\u6cd52<\/h3>\n\n\n\n

\u5fc5\u8981\u5165\u529b\u60c5\u5831\uff1a\u5730\u8868\u5927\u6c17\u5727\u3001\u5730\u8868\u6e29\u5ea6\u3001\u5730\u8868\u6c34\u84b8\u6c17\u5bc6\u5ea6\u3001\u7a4d\u5206\u6c34\u84b8\u6c17\u91cf\u306e\u77ac\u6642\u5024<\/p>\n\n\n\n

\u6c34\u84b8\u6c17\u5438\u53ce\u306b\u3088\u308b\u77ac\u6642\u6e1b\u8870\u91cf\uff1a\\(A_w\\)<\/p>\n\n\n\n

\\(
A_w(f, P_s, T_s, \\rho_{w_s}) = \\frac{K_V(f, P_s, T_s, \\rho_{w_s}) \\cdot V_s}{\\sin \\theta} \\\\
\\tag{27}
\\)
\\(
K_V(f, P_s, T_s, \\rho_{w_s}) = a_V(f) + b_V(f) \\rho_{w_s} + c_V(f) T_s + d_V(f) P_s \\\\
\\tag{28}
\\)<\/p>\n\n\n\n

\\(V_s\\)\uff1a\u5730\u8868\u304b\u3089\u885b\u661f\u307e\u3067\u306e\u7a4d\u5206\u6c34\u84b8\u6c17\u91cf[kg\/m3<\/sup>]\u3002<\/p>\n\n\n\n

\u5404\u5468\u6ce2\u6570\u306b\u304a\u3051\u308b\\(K_V\\)\u306e\u4fc2\u6570\\(a_V\\)\u3001\\(b_V\\)\u3001\\(c_V\\)\u3001\\(d_V\\)\uff1aITU-R\u52e7\u544aP.676-13\u306e\u30c7\u30fc\u30bf\u30d5\u30a1\u30a4\u30eb<\/a>\u53c2\u7167\u30021GHz\u304b\u3089350GHz \u307e\u3067\u306e\u7bc4\u56f2\u306b\u304a\u3044\u30660.5GHz\u30b9\u30c6\u30c3\u30d7\u3067\u5404\u4fc2\u6570\u306e\u5024\u304c\u793a\u3055\u308c\u3066\u3044\u308b\u3002\u6240\u671b\u306e\u5468\u6ce2\u6570\u306b\u304a\u3051\u308b\u5404\u4fc2\u6570\u306e\u5024\u306f\u793a\u3055\u308c\u305f\u5468\u6ce2\u6570\u306e\u9593\u3092\u7dda\u5f62\u88dc\u9593\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u6c42\u3081\u308b\u3002<\/p>\n\n\n\n

\u6c34\u84b8\u6c17\u5438\u53ce\u6e1b\u8870\u91cf\u306e\u7d2f\u7a4d\u5206\u5e03\u306e\u8fd1\u4f3c\u8a08\u7b97\u6cd5<\/h3>\n\n\n\n

\u5fc5\u8981\u5165\u529b\u60c5\u5831\uff1a\u5730\u8868\u5927\u6c17\u5727\u3001\u5730\u8868\u6e29\u5ea6\u3001\u5730\u8868\u6c34\u84b8\u6c17\u5bc6\u5ea6\u3001\u7a4d\u5206\u6c34\u84b8\u6c17\u91cf\u306e\u7d71\u8a08\u5024<\/p>\n\n\n\n

\u6c34\u84b8\u6c17\u5438\u53ce\u306b\u3088\u308b\u6e1b\u8870\u91cf\u7d2f\u7a4d\u5206\u5e03\u306e\\(p\\)%\u5024\uff1a\\(A_w\\)<\/p>\n\n\n\n

\\(
A_w(f, p) = \\frac{K_V(f, \\overline{P_s}, \\overline{T_s}, \\overline{\\rho_{w_s}}) \\cdot V_s(p)}{\\sin \\theta} \\\\
\\tag{29}
\\)
\\(
K_V(f, \\overline{P_s}, \\overline{T_s}, \\overline{\\rho_{w_s}}) = a_V(f) + b_V(f) \\overline{\\rho_{w_s}} + c_V(f) \\overline{T_s} + d_V(f) \\overline{P_s} \\\\
\\tag{30}
\\)<\/p>\n\n\n\n

\\(V_s(p)\\)\uff1a\u5730\u8868\u304b\u3089\u885b\u661f\u307e\u3067\u306e\u7a4d\u5206\u6c34\u84b8\u6c17\u91cf\u306e\u7d2f\u7a4d\u78ba\u7387\\(p\\)%\u5024[kg\/m3<\/sup>]\n\n\n\n

\\(K_V\\)\u306e\u8a08\u7b97\u306f\u3001\u77ac\u6642\u5024\u306e\u5f0f\u306b\u3001\u305d\u308c\u305e\u308c\u306e\u5909\u6570\u306e\u7d2f\u7a4d\u78ba\u7387\\(p\\)%\u5024\u3092\u7528\u3044\u3066\u8a08\u7b97\u3059\u308b\u3002\u4fc2\u6570\u306f\u540c\u3058\u3002<\/p>\n\n\n\n

<\/p>\n\n\n\n

\u8fd1\u4f3c\u8a08\u7b97\u6cd5\u306e\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\u3000\u3000\u3000<\/td><\/tr>
\\(f\\)<\/td>\u5468\u6ce2\u6570 [GHz]<\/td>\uff5e350GHz<\/td><\/tr>
\\(P_s\\),\\(\\overline{P_s}\\)<\/td>\u5730\u8868\u5927\u6c17\u5727[hPa]\u304a\u3088\u3073\u305d\u306e\u5e73\u5747\u5024<\/td><\/td><\/tr>
\\(e_s\\),<\/em>\\(\\overline{e_s}\\)<\/td>\u5730\u8868\u6c34\u84b8\u6c17\u5206\u5727[hPa]\u304a\u3088\u3073\u305d\u306e\u5e73\u5747\u5024\\(\\\\(e_s=\\rho_{w_s}T_s\/216.7,\\overline{e_s}=\\overline{\\rho_{w_s}}\\overline{T_s}\/216.7)\\)<\/td><\/td><\/tr>
\\(p_s\\),\\(\\overline{p_s}\\)<\/td>\u4e7e\u71e5\u5730\u8868\u5927\u6c17\u5727[hPa]\u304a\u3088\u3073\u305d\u306e\u5e73\u5747\u5024
\\(\\\\(p_s=P_s-e_s,\\overline{p_s}=\\overline{P_s}-\\overline{e_s})\\)<\/td>		<\/td><\/tr>
\\(T_s\\),\\(\\overline{T_s}\\)<\/td>\u5730\u8868\u6e29\u5ea6[K]\u304a\u3088\u3073\u305d\u306e\u5e73\u5747\u5024<\/td><\/td><\/tr>
\\(\\rho_{w_s}\\),\\(\\overline{\\rho_{w_s}}\\)<\/td>\u6c34\u84b8\u6c17\u5bc6\u5ea6[g\/m3<\/sup>]\u304a\u3088\u3073\u305d\u306e\u5e73\u5747\u5024<\/td><\/td><\/tr>
\\(\\theta\\)<\/td>\u4ef0\u89d2[rad]<\/td><\/td><\/tr>
\\(P_s(p)\\)<\/td>\u7d2f\u7a4d\u78ba\u7387\\(p\\)%\u306e\u5730\u8868\u5927\u6c17\u5727[hPa]<\/td><\/td><\/tr>
\\(T_s(p)\\)<\/td>\u7d2f\u7a4d\u78ba\u7387\\(p\\)%\u306e\u5730\u8868\u6e29\u5ea6[K]<\/td><\/td><\/tr>
\\(\\rho_{w_s}(p)\\)<\/td>\u7d2f\u7a4d\u78ba\u7387\\(p\\)%\u306e\u6c34\u84b8\u6c17\u5bc6\u5ea6[g\/m3<\/sup>]<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u8a08\u7b97\u4f8b<\/h3>\n\n\n\n

\u56f31\uff1a\u5927\u6c17\u30ac\u30b9\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570\uff1a\\(\\gamma\\)(dB\/km)<\/p>\n\n\n\n

\u30d7\u30ed\u30b0\u30e9\u30e0\u4f8b<\/h3>\n\n\n\n

\u5927\u6c17\u30ac\u30b9\u306b\u3088\u308b\u6e1b\u8870\u4fc2\u6570\\(\\gamma\\)(\u56f31\u76f8\u5f53)\u3092\u8a08\u7b97\u3059\u308bMatlab\u30bd\u30fc\u30b9<\/a><\/p>\n\n\n\n

\u53c2\u7167<\/h2>\n\n\n\n[1]  ITU-R, \u201cAttenuation by atmospheric gases and related effects,\u201d ITU-R P.676-13, Aug. 2022.<\/p>\n\n\n\n[2]  ITU-R, \u201cAttenuation by atmospheric gases and related effects,\u201d ITU-R P.676-3, Aug. 1997.<\/p>\n\n\n\n[3]  \u7d30\u77e2(\u76e3), \u201c\u96fb\u6ce2\u4f1d\u642c\u30cf\u30f3\u30c9\u30d6\u30c3\u30af \u7b2c20\u7ae0 \u56fa\u5b9a\u885b\u661f\u901a\u4fe1\u306e\u4f1d\u642c,\u201d pp.282-284, \u30ea\u30a2\u30e9\u30a4\u30ba\u793e, 1999.<\/p>\n\n\n\n[4]  \u9032\u58eb\u660c\u660e, \u201c\u7121\u7dda\u901a\u4fe1\u306e\u96fb\u6ce2\u4f1d\u642c \u7b2c4\u7ae0 \u5927\u6c17\u30ac\u30b9\u304a\u3088\u3073\u964d\u6c34\u306e\u6027\u8cea,\u201d pp.50-55, \u30b3\u30ed\u30ca\u793e, 1992.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30e2\u30c7\u30eb\u306e\u6982\u8981 \u3000\u4ee5\u4e0b\u306f\u3001ITU-R\u306b\u304a\u3051\u308b\u5927\u6c17\u30ac\u30b9\u5438\u53ce\u306b\u3088\u308b\u6e1b\u8870\u91cf\u306e\u6a19\u6e96\u30e2\u30c7\u30eb\u3092\u898f\u5b9a\u3059\u308bITU\u52e7\u544a\u306e\u6700\u65b0\u7248ITU-R P.676-13[1]\u3092\u30d9\u30fc\u30b9\u3068\u3057\u3066\u8a18\u8ff0\u3057\u305f\u3082\u306e\u3067\u3042\u308b\u3002\u306a\u304a\u3001\u540c\u52e7\u544a\u306e\u904e\u53bb\u306e\u7248\u3067\u306f\u3001\u7570\u306a\u308b\u30e2\u30c7\u30eb\u3082\u8a18\u8ff0 […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":12073,"menu_order":41,"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-8355","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/8355","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=8355"}],"version-history":[{"count":158,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/8355\/revisions"}],"predecessor-version":[{"id":14889,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/8355\/revisions\/14889"}],"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=8355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}