{"id":214707,"date":"2024-09-04T23:31:36","date_gmt":"2024-09-04T23:31:36","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=214707"},"modified":"2024-09-04T23:31:36","modified_gmt":"2024-09-04T23:31:36","slug":"%e3%83%ac%e3%83%bc%e3%83%80%e3%83%bc%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%ae%e5%8b%95%e4%bd%9c%e5%8e%9f%e7%90%86%e3%81%a8%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%ac%e3%83%bc%e3%83%80%e3%83%bc%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%ae%e5%8b%95%e4%bd%9c%e5%8e%9f%e7%90%86%e3%81%a8%e3%81%af%ef%bc%9f\/","title":{"rendered":"\u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u52d5\u4f5c\u539f\u7406\u3068\u306f\uff1f"},"content":{"rendered":"

\u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u52d5\u4f5c\u539f\u7406\u3092\u7c21\u5358\u306b\u89e3\u8aac\u3002\u96fb\u78c1\u6ce2\u3092\u5229\u7528\u3057\u3066\u7269\u4f53\u306e\u4f4d\u7f6e\u3084\u901f\u5ea6\u3092\u691c\u51fa\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u306b\u3064\u3044\u3066\u5b66\u3073\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u52d5\u4f5c\u539f\u7406\u3068\u306f\uff1f<\/h2>\n

\u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u96fb\u78c1\u6ce2\u3092\u7528\u3044\u3066\u7269\u4f53\u306e\u4f4d\u7f6e\u3084\u901f\u5ea6\u3092\u691c\u51fa\u3059\u308b\u6280\u8853\u3067\u3059\u3002\u30ec\u30fc\u30c0\u30fc\u306f\u300cRadio Detection and Ranging\u300d\u306e\u7565\u3067\u3042\u308a\u3001\u7121\u7dda\u6280\u8853\u3092\u4f7f\u3063\u3066\u7269\u4f53\u3092\u691c\u51fa\u3057\u3001\u305d\u306e\u8ddd\u96e2\u3092\u6e2c\u5b9a\u3059\u308b\u88c5\u7f6e\u3092\u6307\u3057\u307e\u3059\u3002\u3067\u306f\u3001\u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306f\u3069\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u4eca\u56de\u306f\u3001\u305d\u306e\u57fa\u672c\u7684\u306a\u52d5\u4f5c\u539f\u7406\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u57fa\u672c\u7684\u306a\u52d5\u4f5c\u539f\u7406<\/h2>\n

\u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u57fa\u672c\u7684\u306a\u52d5\u4f5c\u539f\u7406\u306f\u3001\u4ee5\u4e0b\u306e\u30b9\u30c6\u30c3\u30d7\u304b\u3089\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \n
  1. \u9001\u4fe1<\/li>\n
  2. \u53cd\u5c04<\/li>\n
  3. \u53d7\u4fe1\u3068\u89e3\u6790<\/li>\n<\/ol>\n

    \u9001\u4fe1<\/h3>\n

    \u307e\u305a\u3001\u30ec\u30fc\u30c0\u30fc\u30a2\u30f3\u30c6\u30ca\u306f\u9ad8\u5468\u6ce2\u306e\u96fb\u78c1\u6ce2\u3092\u767a\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u96fb\u78c1\u6ce2\u306f\u7a7a\u9593\u3092\u9032\u307f\u3001\u7279\u5b9a\u306e\u76ee\u6a19\u7269\uff08\u98db\u884c\u6a5f\u3001\u8239\u8236\u3001\u8eca\u4e21\u306a\u3069\uff09\u306b\u5411\u304b\u3063\u3066\u9032\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u9001\u4fe1\u3055\u308c\u308b\u96fb\u78c1\u6ce2\u306f\u901a\u5e38\u3001\u30de\u30a4\u30af\u30ed\u6ce2\u5e2f\uff081 GHz \uff5e 40 GHz\uff09\u306e\u5468\u6ce2\u6570\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u53cd\u5c04<\/h3>\n

    \u9001\u4fe1\u3055\u308c\u305f\u96fb\u78c1\u6ce2\u304c\u76ee\u6a19\u7269\u306b\u5f53\u305f\u308b\u3068\u3001\u305d\u306e\u4e00\u90e8\u306f\u53cd\u5c04\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u53cd\u5c04\u6ce2\u306f\u518d\u3073\u7a7a\u9593\u3092\u623b\u308a\u3001\u30ec\u30fc\u30c0\u30fc\u30a2\u30f3\u30c6\u30ca\u3078\u5411\u304b\u3044\u307e\u3059\u3002\u3053\u306e\u53cd\u5c04\u6ce2\u3092\u5206\u6790\u3059\u308b\u3053\u3068\u3067\u3001\u76ee\u6a19\u7269\u306e\u4f4d\u7f6e\u60c5\u5831\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \u53d7\u4fe1\u3068\u89e3\u6790<\/h3>\n

    \u30ec\u30fc\u30c0\u30fc\u30a2\u30f3\u30c6\u30ca\u306f\u53cd\u5c04\u6ce2\u3092\u53d7\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u53d7\u4fe1\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3059\u308b\u3053\u3068\u3067\u3001\u76ee\u6a19\u7269\u306e\u4f4d\u7f6e\u3084\u901f\u5ea6\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n

    \u8ddd\u96e2\u306e\u6e2c\u5b9a<\/h2>\n

    \u76ee\u6a19\u7269\u307e\u3067\u306e\u8ddd\u96e2\u306f\u3001\u9001\u4fe1\u304b\u3089\u53cd\u5c04\u6ce2\u304c\u53d7\u4fe1\u3055\u308c\u308b\u307e\u3067\u306e\u6642\u9593\u5dee\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u96fb\u78c1\u6ce2\u306e\u901f\u5ea6 \\(c\\) \u306f\u7d04 \\(3 \\times 10^8 \\) m\/s \u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u8ddd\u96e2 \\(d\\) \u306f\u4ee5\u4e0b\u306e\u6570\u5f0f\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n

    \\[ d = \\frac{c \\cdot t}{2} \\]<\/p>\n

    \u3053\u3053\u3067\u3001 \\(t\\) \u306f\u9001\u4fe1\u304b\u3089\u53d7\u4fe1\u307e\u3067\u306e\u6642\u9593\u3067\u3059\u3002\u6642\u9593 \\(t\\) \u3092\u6e2c\u5b9a\u3057\u3001\u305d\u306e\u534a\u5206\u3092\u53d6\u308b\u3053\u3068\u3067\u8ddd\u96e2\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n

    \u901f\u5ea6\u306e\u6e2c\u5b9a<\/h2>\n

    \u30ec\u30fc\u30c0\u30fc\u306f\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c\u3092\u5229\u7528\u3057\u3066\u76ee\u6a19\u7269\u306e\u901f\u5ea6\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u76ee\u6a19\u7269\u304c\u52d5\u3044\u3066\u3044\u308b\u3068\u3001\u53cd\u5c04\u6ce2\u306e\u5468\u6ce2\u6570\u304c\u9001\u4fe1\u6ce2\u306e\u5468\u6ce2\u6570\u3068\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u5468\u6ce2\u6570\u306e\u5909\u5316\u3092\u30c9\u30c3\u30d7\u30e9\u30fc\u30b7\u30d5\u30c8\u3068\u547c\u3073\u307e\u3059\u3002\u30c9\u30c3\u30d7\u30e9\u30fc\u30b7\u30d5\u30c8\u3092\u5229\u7528\u3057\u3066\u901f\u5ea6\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306e\u6570\u5f0f\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n

    \\[ v = \\frac{\\Delta f \\cdot c}{2f_0} \\]<\/p>\n

    \u3053\u3053\u3067\u3001 \\(\\Delta f\\) \u306f\u5468\u6ce2\u6570\u306e\u5909\u5316\u91cf\u3001\\(f_0\\) \u306f\u9001\u4fe1\u6ce2\u306e\u5468\u6ce2\u6570\u3067\u3059\u3002\u3053\u306e\u6570\u5f0f\u306b\u5f93\u3063\u3066\u3001\u5468\u6ce2\u6570\u306e\u5909\u5316\u304b\u3089\u76ee\u6a19\u7269\u306e\u901f\u5ea6 \\(v\\) \u3092\u7b97\u51fa\u3057\u307e\u3059\u3002<\/p>\n

    \u5b9f\u969b\u306e\u5fdc\u7528\u4f8b<\/h2>\n
      \n
    • \u822a\u7a7a\u6a5f\u306e\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3<\/li>\n
    • \u6c17\u8c61\u89b3\u6e2c\uff08\u6c17\u8c61\u30ec\u30fc\u30c0\u30fc\uff09<\/li>\n
    • \u4ea4\u901a\u76e3\u8996\uff08\u901f\u5ea6\u9055\u53cd\u306e\u53d6\u308a\u7de0\u307e\u308a\uff09<\/li>\n
    • \u8239\u8236\u306e\u822a\u884c\u652f\u63f4<\/li>\n<\/ul>\n

      \u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u3053\u308c\u3089\u306e\u5fdc\u7528\u4f8b\u306b\u52a0\u3048\u3066\u3001\u79c1\u305f\u3061\u306e\u65e5\u5e38\u751f\u6d3b\u306e\u4e2d\u3067\u3055\u307e\u3056\u307e\u306a\u5f62\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u9ad8\u7cbe\u5ea6\u306a\u8ddd\u96e2\u6e2c\u5b9a\u3084\u901f\u5ea6\u6e2c\u5b9a\u6a5f\u80fd\u306b\u3088\u308a\u3001\u591a\u304f\u306e\u5206\u91ce\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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