{"id":1558,"date":"2026-10-30T04:00:00","date_gmt":"2026-10-29T19:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1558"},"modified":"2026-10-27T09:44:36","modified_gmt":"2026-10-27T00:44:36","slug":"qs-sound-doppler-source-observer-20261024","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1558","title":{"rendered":"\u97f3\u306e\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c\u3001\u97f3\u6e90\u304c\u52d5\u304f\u5834\u5408\u3068\u805e\u304d\u624b\u304c\u52d5\u304f\u5834\u5408\u3067\u4f55\u304c\u9055\u3046\u304b"},"content":{"rendered":"<p>\u8fd1\u3065\u3044\u3066\u304f\u308b\u97f3\u304c\u9ad8\u304f\u3001\u9060\u3056\u304b\u308b\u97f3\u304c\u4f4e\u304f\u805e\u3053\u3048\u308b\u73fe\u8c61\u306f\u3001<strong>\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c<\/strong>\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u3067\u306f\u3001\u97f3\u6e90\u304c\u3053\u3061\u3089\u3078\u52d5\u304f\u5834\u5408\u3068\u3001\u81ea\u5206\u304c\u97f3\u6e90\u3078\u5411\u304b\u3046\u5834\u5408\u306f\u3001\u540c\u3058\u901f\u3055\u306a\u3089\u540c\u3058\u97f3\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u9759\u304b\u306a\u7a7a\u6c17\u306e\u4e2d\u3092\u4f1d\u308f\u308b\u97f3\u3067\u306f\u3001\u53b3\u5bc6\u306b\u306f\u540c\u3058\u306b\u306a\u308a\u307e\u305b\u3093\u3002\u97f3\u6e90\u306e\u52d5\u304d\u306f\u6ce2\u306e\u9593\u9694\u3092\u5909\u3048\u3001\u805e\u304d\u624b\u306e\u52d5\u304d\u306f\u6ce2\u3068\u51fa\u4f1a\u3046\u901f\u3055\u3092\u5909\u3048\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<section class=\"influvetor-quick-summary\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>\u97f3\u6e90\u304c\u8fd1\u3065\u304f\u3068\u3001\u524d\u65b9\u306e\u7a7a\u6c17\u4e2d\u3067\u306f\u6ce2\u306e\u9593\u9694\u304c\u72ed\u304f\u306a\u308a\u307e\u3059\u3002\u805e\u304d\u624b\u304c\u8fd1\u3065\u304f\u5834\u5408\u306f\u3001\u6ce2\u306e\u9593\u9694\u304c\u540c\u3058\u3067\u3082\u3001\u5358\u4f4d\u6642\u9593\u306b\u53d7\u3051\u53d6\u308b\u6ce2\u306e\u6570\u304c\u5897\u3048\u307e\u3059\u3002<\/li>\n<li>\u97f3\u306e\u901f\u3055\u3092343 m\/s\u3001\u97f3\u6e90\u306e\u5468\u6ce2\u6570\u30921,000 Hz\u3068\u3057\u305f\u4f8b\u3067\u306f\u3001\u97f3\u6e90\u304c20 m\/s\u3067\u8fd1\u3065\u304f\u3068\u7d041,061.9 Hz\u3001\u805e\u304d\u624b\u304c20 m\/s\u3067\u8fd1\u3065\u304f\u3068\u7d041,058.3 Hz\u3067\u3059\u3002<\/li>\n<li>\u3053\u306e\u6bd4\u8f03\u3067\u4f7f\u3046\u901f\u3055\u306f\u7a7a\u6c17\u306b\u5bfe\u3059\u308b\u901f\u3055\u3067\u3059\u3002\u97f3\u91cf\u306e\u5909\u5316\u3001\u53cd\u5c04\u97f3\u3001\u5149\u306e\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c\u306f\u3001\u3053\u3053\u3067\u8a08\u7b97\u3059\u308b\u5468\u6ce2\u6570\u306e\u5909\u5316\u3068\u5206\u3051\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u5468\u6ce2\u6570\u306f\u3001\u4e00\u79d2\u9593\u306b\u4f55\u56de\u6ce2\u304c\u5c4a\u304f\u304b<\/h2>\n<p>\u97f3\u306f\u7a7a\u6c17\u306e\u5727\u529b\u306e\u5909\u52d5\u3068\u3057\u3066\u4f1d\u308f\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u4e00\u3064\u306e\u5468\u6ce2\u6570\u3060\u3051\u3092\u6301\u3064\u97f3\u3092\u8003\u3048\u3001\u5727\u529b\u304c\u9ad8\u304f\u306a\u308b\u90e8\u5206\u3092\u9806\u756a\u306b\u6570\u3048\u307e\u3059\u3002\u4e00\u79d2\u9593\u306b1,000\u56de\u5c4a\u3051\u3070\u3001\u53d7\u3051\u53d6\u308b\u5468\u6ce2\u6570\u306f1,000 Hz\u3067\u3059\u3002\u5468\u6ce2\u6570\u306f\u97f3\u306e\u9ad8\u3055\u306b\u95a2\u4fc2\u3057\u307e\u3059\u304c\u3001\u632f\u5e45\u306b\u95a2\u4fc2\u3059\u308b\u97f3\u306e\u5927\u304d\u3055\u3068\u306f\u5225\u306e\u91cf\u3067\u3059\u3002<\/p>\n<p>\u97f3\u6e90\u3082\u805e\u304d\u624b\u3082\u7a7a\u6c17\u306b\u5bfe\u3057\u3066\u6b62\u307e\u3063\u3066\u3044\u308c\u3070\u3001\u97f3\u6e90\u304c\u4e00\u56de\u632f\u52d5\u3059\u308b\u6642\u9593\u3068\u3001\u805e\u304d\u624b\u306b\u6b21\u306e\u6ce2\u304c\u5c4a\u304f\u307e\u3067\u306e\u6642\u9593\u306f\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u97f3\u901f\u3092c\u3001\u97f3\u6e90\u306e\u5468\u6ce2\u6570\u3092f\u3068\u3059\u308c\u3070\u3001\u6ce2\u9577\u03bb\u306f<strong>\u03bb = c\/f<\/strong>\u3067\u3059\u3002\u6ce2\u9577\u306f\u3001\u7a7a\u6c17\u4e2d\u306e\u3042\u308b\u77ac\u9593\u306b\u96a3\u308a\u5408\u3046\u540c\u3058\u4f4d\u76f8\u306e\u90e8\u5206\u3092\u6e2c\u3063\u305f\u9593\u9694\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u3067\u306f\u3001\u9759\u6b62\u3057\u3066\u4e00\u69d8\u306a\u7a7a\u6c17\u3001\u4e00\u5b9a\u306e\u97f3\u901fc = 343 m\/s\u3001\u97f3\u6e90\u306e\u5468\u6ce2\u6570f = 1,000 Hz\u3092\u4eee\u5b9a\u3057\u307e\u3059\u3002\u5b9f\u6e2c\u5024\u3067\u306f\u306a\u304f\u3001\u9055\u3044\u3092\u6bd4\u3079\u308b\u305f\u3081\u306e\u8a2d\u5b9a\u3067\u3059\u3002\u97f3\u6e90\u3068\u805e\u304d\u624b\u3092\u7d50\u3076\u4e00\u76f4\u7dda\u4e0a\u306e\u904b\u52d5\u3060\u3051\u3092\u6271\u3044\u3001\u98a8\u306e\u3080\u3089\u3001\u53cd\u5c04\u3001\u52a0\u901f\u3001\u97f3\u901f\u3092\u8d85\u3048\u308b\u904b\u52d5\u306f\u542b\u3081\u307e\u305b\u3093\u3002\u6b62\u307e\u3063\u305f\u97f3\u6e90\u306e\u6ce2\u9577\u306f0.343 m\u3001\u632f\u52d5\u4e00\u56de\u306e\u6642\u9593\u306f0.001\u79d2\u3067\u3059\u3002<\/p>\n<h2>\u97f3\u6e90\u304c\u8fd1\u3065\u304f\u3068\u3001\u6b21\u306e\u6ce2\u3092\u51fa\u3059\u5834\u6240\u304c\u524d\u3078\u9032\u3080<\/h2>\n<p>\u97f3\u6e90\u304c\u805e\u304d\u624b\u3078\u5411\u304b\u3063\u306620 m\/s\u3067\u52d5\u304f\u3068\u3057\u307e\u3059\u3002\u4e00\u56de\u306e\u632f\u52d5\u306b\u304b\u304b\u308b0.001\u79d2\u306e\u9593\u306b\u3001\u5148\u306b\u51fa\u305f\u6ce2\u306f\u7a7a\u6c17\u4e2d\u30920.343 m\u9032\u307f\u307e\u3059\u3002\u540c\u3058\u9593\u306b\u97f3\u6e90\u30820.020 m\u9032\u307f\u3001\u305d\u306e\u5834\u6240\u304b\u3089\u6b21\u306e\u6ce2\u3092\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u524d\u65b9\u306b\u4e26\u3076\u6ce2\u306e\u9593\u9694\u306f0.343 \u2212 0.020\u3067\u3001<strong>0.323 m<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002\u97f3\u6e90\u304c\u52d5\u3044\u3066\u3082\u3001\u51fa\u305f\u6ce2\u304c\u7a7a\u6c17\u306b\u5bfe\u3057\u3066\u4f1d\u308f\u308b\u901f\u3055\u306f\u3001\u3053\u306e\u30e2\u30c7\u30eb\u3067\u306f343 m\/s\u306e\u307e\u307e\u3067\u3059\u3002\u97f3\u6e90\u306e\u901f\u5ea6\u3092\u97f3\u901f\u3078\u8db3\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u6b62\u307e\u3063\u305f\u805e\u304d\u624b\u304c\u4e00\u79d2\u9593\u306b\u53d7\u3051\u53d6\u308b\u6ce2\u306e\u6570\u306f\u3001343 \u00f7 0.323\u3067<strong>\u7d041,061.9 Hz<\/strong>\u3067\u3059\u3002\u97f3\u6e90\u306e\u63a5\u8fd1\u901f\u5ea6\u3092u\u3068\u66f8\u304f\u3068\u3001\u524d\u65b9\u306e\u6ce2\u9577\u306f(c \u2212 u)\/f\u3001\u53d7\u3051\u53d6\u308b\u5468\u6ce2\u6570\u306f<strong>f \u00d7 c\/(c \u2212 u)<\/strong>\u3068\u306a\u308a\u307e\u3059\u3002\u97f3\u6e90\u304c\u4e00\u79d2\u9593\u306b\u51fa\u3059\u632f\u52d5\u306e\u6570\u3092\u5909\u3048\u306a\u304f\u3066\u3082\u3001\u5230\u7740\u306e\u9593\u9694\u304c\u77ed\u304f\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n<h2>\u805e\u304d\u624b\u304c\u8fd1\u3065\u304f\u3068\u3001\u540c\u3058\u6ce2\u306e\u5217\u306b\u901f\u304f\u51fa\u4f1a\u3046<\/h2>\n<p>\u4eca\u5ea6\u306f\u97f3\u6e90\u3092\u6b62\u3081\u3001\u805e\u304d\u624b\u304c\u97f3\u6e90\u3078\u5411\u304b\u3063\u306620 m\/s\u3067\u52d5\u304f\u3068\u3057\u307e\u3059\u3002\u97f3\u6e90\u306f\u6bce\u56de\u540c\u3058\u5834\u6240\u304b\u3089\u6ce2\u3092\u51fa\u3059\u306e\u3067\u3001\u7a7a\u6c17\u4e2d\u306e\u6ce2\u9577\u306f<strong>0.343 m<\/strong>\u306e\u307e\u307e\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u805e\u304d\u624b\u306f\u3001\u8fd1\u3065\u3044\u3066\u304f\u308b\u6ce2\u3078\u81ea\u5206\u304b\u3089\u5411\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u6ce2\u3068\u805e\u304d\u624b\u304c\u51fa\u4f1a\u3046\u901f\u3055\u306f343 + 20\u3067363 m\/s\u3067\u3059\u3002\u3053\u308c\u306f\u805e\u304d\u624b\u306b\u5bfe\u3059\u308b\u6ce2\u306e\u63a5\u8fd1\u901f\u5ea6\u3067\u3042\u308a\u3001\u7a7a\u6c17\u4e2d\u306e\u97f3\u901f\u304c363 m\/s\u3078\u5909\u308f\u3063\u305f\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4e00\u79d2\u9593\u306b\u53d7\u3051\u53d6\u308b\u6ce2\u306e\u6570\u306f\u3001363 \u00f7 0.343\u3067<strong>\u7d041,058.3 Hz<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002\u805e\u304d\u624b\u306e\u63a5\u8fd1\u901f\u5ea6\u3092u\u3068\u66f8\u304f\u3068\u3001\u5f0f\u306f<strong>f \u00d7 (c + u)\/c<\/strong>\u3067\u3059\u3002\u97f3\u6e90\u304c\u52d5\u304f\u5f0f\u3067\u306f\u5206\u6bcd\u306e\u6ce2\u9577\u304c\u5909\u308f\u308a\u3001\u805e\u304d\u624b\u304c\u52d5\u304f\u5f0f\u3067\u306f\u5206\u5b50\u306e\u51fa\u4f1a\u3046\u901f\u3055\u304c\u5909\u308f\u308b\u3001\u3068\u3044\u3046\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-sound-doppler-source-observer-20261024-figure-c462c84b043b.png\" alt=\"\u97f3\u6e90\u304c\u6bce\u79d220\u30e1\u30fc\u30c8\u30eb\u3067\u8fd1\u3065\u304f\u5834\u5408\u306f\u6ce2\u95770.323\u30e1\u30fc\u30c8\u30eb\u3067\u7d041061.9\u30d8\u30eb\u30c4\u3002\u805e\u304d\u624b\u304c\u540c\u3058\u901f\u3055\u3067\u8fd1\u3065\u304f\u5834\u5408\u306f\u6ce2\u95770.343\u30e1\u30fc\u30c8\u30eb\u306e\u307e\u307e\u3067\u7d041058.3\u30d8\u30eb\u30c4\u3002\" style=\"max-width:100%;height:auto\"><figcaption>\u97f3\u6e90\u306e\u5468\u6ce2\u65701,000 Hz\u3001\u7a7a\u6c17\u4e2d\u306e\u97f3\u901f343 m\/s\u3067\u306e\u72ec\u81ea\u8a08\u7b97\u3002\u3069\u3061\u3089\u3082\u8ddd\u96e2\u304c\u7e2e\u3080\u901f\u3055\u306f20 m\/s\u3060\u304c\u3001\u6ce2\u306e\u9593\u9694\u3068\u6ce2\u306b\u51fa\u4f1a\u3046\u901f\u3055\u304c\u7570\u306a\u308b\u3002QS\u306b\u3088\u308b\u72ec\u81ea\u4f5c\u56f3\u3002<\/figcaption><\/figure>\n<h2>\u9060\u3056\u304b\u308b\u5834\u5408\u3082\u542b\u3081\u3066\u3001\u56db\u3064\u3092\u6bd4\u3079\u308b<\/h2>\n<p>\u97f3\u6e90\u304c\u9060\u3056\u304b\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u6ce2\u3092\u51fa\u3059\u4f4d\u7f6e\u304c\u805e\u304d\u624b\u304b\u3089\u96e2\u308c\u308b\u305f\u3081\u3001\u6ce2\u9577\u304c(c + u)\/f\u3078\u5e83\u304c\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001\u805e\u304d\u624b\u304c\u9060\u3056\u304b\u308b\u5834\u5408\u306b\u306f\u3001\u6ce2\u9577\u306f\u5909\u308f\u3089\u305a\u3001\u6ce2\u306b\u8ffd\u3044\u3064\u304b\u308c\u308b\u901f\u3055\u304cc \u2212 u\u3078\u4e0b\u304c\u308a\u307e\u3059\u3002u\u3092\u6b63\u306e\u901f\u3055\u3068\u3057\u3066\u66f8\u304f\u3068\u3001\u56db\u3064\u306e\u5f0f\u3092\u6b21\u306e\u3088\u3046\u306b\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<div style=\"overflow-x:auto\">\n<table style=\"border-collapse:collapse;min-width:620px;width:100%\">\n<thead>\n<tr>\n<th style=\"padding:10px;border:1px solid #ccd\">\u52d5\u304f\u5074\u3068\u5411\u304d<\/th>\n<th style=\"padding:10px;border:1px solid #ccd\">\u53d7\u3051\u53d6\u308b\u5468\u6ce2\u6570<\/th>\n<th style=\"padding:10px;border:1px solid #ccd\">u = 20 m\/s\u306e\u4f8b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:10px;border:1px solid #ccd\">\u97f3\u6e90\u304c\u8fd1\u3065\u304f<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">f \u00d7 c\/(c \u2212 u)<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">\u7d041,061.9 Hz<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ccd\">\u805e\u304d\u624b\u304c\u8fd1\u3065\u304f<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">f \u00d7 (c + u)\/c<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">\u7d041,058.3 Hz<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ccd\">\u97f3\u6e90\u304c\u9060\u3056\u304b\u308b<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">f \u00d7 c\/(c + u)<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">\u7d04944.9 Hz<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ccd\">\u805e\u304d\u624b\u304c\u9060\u3056\u304b\u308b<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">f \u00d7 (c \u2212 u)\/c<\/td>\n<td style=\"padding:10px;border:1px solid #ccd\">\u7d04941.7 Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u63a5\u8fd1\u3059\u308b\u4e8c\u3064\u306e\u4f8b\u3067\u306f\u3001\u5dee\u306f\u7d043.6 Hz\u3067\u3059\u3002\u901f\u3055\u304c\u97f3\u901f\u306b\u6bd4\u3079\u3066\u5341\u5206\u5c0f\u3055\u3044\u3068\u3001\u3053\u306e\u9055\u3044\u306f\u76ee\u7acb\u3061\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002u\/c\u3092q\u3068\u7f6e\u3051\u3070\u3001\u97f3\u6e90\u304c\u52d5\u304f\u5834\u5408\u306e\u500d\u7387\u306f1\/(1 \u2212 q)\u3001\u805e\u304d\u624b\u304c\u52d5\u304f\u5834\u5408\u306f1 + q\u3067\u3001\u305d\u306e\u5dee\u306fq\u00b2\/(1 \u2212 q)\u3067\u3059\u3002\u9055\u3044\u306fq\u306e\u4e8c\u4e57\u306e\u5927\u304d\u3055\u304b\u3089\u73fe\u308c\u308b\u305f\u3081\u3001\u4f4e\u901f\u3067\u306f\u3069\u3061\u3089\u3082\u300c\u304a\u3088\u305du\/c\u3060\u3051\u5468\u6ce2\u6570\u304c\u5897\u3048\u308b\u300d\u3068\u3044\u3046\u8fd1\u4f3c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u6570\u5024\u5dee\u306e\u5c0f\u3055\u3055\u304b\u3089\u540c\u3058\u4ed5\u7d44\u307f\u3060\u3068\u6271\u3046\u3068\u3001\u6761\u4ef6\u3092\u5909\u3048\u305f\u3068\u304d\u306b\u8aa4\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u97f3\u6e90\u304c\u8fd1\u3065\u304f\u5834\u5408\u3068\u9060\u3056\u304b\u308b\u5834\u5408\u306e\u5468\u6ce2\u6570\u5909\u5316\u306f\u3001\u5143\u306e1,000 Hz\u304b\u3089\u4e0a\u4e0b\u306b\u540c\u3058\u5e45\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u7d0461.9 Hz\u9ad8\u304f\u306a\u308b\u4e00\u65b9\u3001\u9060\u3056\u304b\u308b\u5834\u5408\u306b\u306f\u7d0455.1 Hz\u4f4e\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u76f8\u5bfe\u901f\u5ea6\u3060\u3051\u3092\u66f8\u304f\u524d\u306b\u3001\u7a7a\u6c17\u3092\u57fa\u6e96\u306b\u3059\u308b<\/h2>\n<p>\u97f3\u306e\u4f1d\u308f\u308b\u901f\u3055\u3092\u5b9a\u3081\u3066\u3044\u308b\u306e\u306f\u3001\u5a92\u8cea\u3067\u3042\u308b\u7a7a\u6c17\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u8ddd\u96e2\u304c\u6bce\u79d2\u4f55\u30e1\u30fc\u30c8\u30eb\u7e2e\u3080\u304b\u3060\u3051\u3067\u306a\u304f\u3001\u97f3\u6e90\u3068\u805e\u304d\u624b\u304c\u305d\u308c\u305e\u308c\u7a7a\u6c17\u306b\u5bfe\u3057\u3066\u3069\u3046\u52d5\u304f\u304b\u3092\u305d\u308d\u3048\u3066\u6bd4\u8f03\u3057\u307e\u3059\u3002\u4e21\u65b9\u304c\u52d5\u304f\u5834\u5408\u3082\u3001\u6ce2\u9577\u3092\u6c7a\u3081\u308b\u97f3\u6e90\u5074\u306e\u8981\u56e0\u3068\u3001\u5230\u7740\u9593\u9694\u3092\u6c7a\u3081\u308b\u805e\u304d\u624b\u5074\u306e\u8981\u56e0\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u9053\u8def\u306e\u8107\u3092\u901a\u308b\u97f3\u6e90\u306e\u3088\u3046\u306b\u3001\u9032\u884c\u65b9\u5411\u304c\u5e38\u306b\u805e\u304d\u624b\u3078\u5411\u3044\u3066\u3044\u308b\u3068\u306f\u9650\u3089\u306a\u3044\u5834\u9762\u3067\u306f\u3001\u3053\u306e\u4e00\u76f4\u7dda\u306e\u5f0f\u3078\u8d70\u884c\u901f\u5ea6\u3092\u305d\u306e\u307e\u307e\u5165\u308c\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u97f3\u3092\u51fa\u3057\u305f\u4f4d\u7f6e\u3068\u3001\u6ce2\u3092\u53d7\u3051\u53d6\u308b\u4f4d\u7f6e\u306e\u95a2\u4fc2\u3092\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u901a\u904e\u524d\u5f8c\u306e\u97f3\u7a0b\u3084\u97f3\u91cf\u306e\u5909\u5316\u3092\u3001\u540c\u3058\u4e00\u3064\u306e\u8a08\u7b97\u3067\u6e08\u307e\u305b\u306a\u3044\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u306e\u5f0f\u306f\u3001\u7a7a\u6c17\u4e2d\u3092\u4f1d\u308f\u308b\u97f3\u306b\u3064\u3044\u3066\u306e\u3082\u306e\u3067\u3059\u3002\u771f\u7a7a\u4e2d\u306e\u5149\u306b\u306f\u540c\u3058\u7a7a\u6c17\u306e\u57fa\u6e96\u304c\u306a\u304f\u3001\u5149\u306e\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c\u3078\u3053\u306e\u5f0f\u3092\u305d\u306e\u307e\u307e\u79fb\u3059\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u97f3\u6e90\u306e\u632f\u52d5\u3001\u7a7a\u6c17\u4e2d\u306e\u6ce2\u9577\u3001\u805e\u304d\u624b\u306b\u5c4a\u304f\u5468\u6ce2\u6570\u3092\u5206\u3051\u308b\u3068\u3001\u300c\u8fd1\u3065\u304f\u3068\u9ad8\u304f\u306a\u308b\u300d\u3068\u3044\u3046\u8aac\u660e\u306e\u4e2d\u306b\u3042\u308b\u4e8c\u3064\u306e\u4ed5\u7d44\u307f\u3092\u8ffd\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ul>\n<li>OpenStax, William Moebs, Samuel J. Ling, Jeff Sanny, <a href=\"https:\/\/openstax.org\/books\/university-physics-volume-1\/pages\/17-7-the-doppler-effect\">University Physics Volume 1, 17.7 The Doppler Effect<\/a>\uff1a\u5f0f17.18\u301c17.20\u3001\u56f317.32\u30fb17.33\u3002\u672c\u6587\u3068\u56f3\u306e1,000 Hz\u30fb20 m\/s\u306e\u6bd4\u8f03\u306f\u3001\u660e\u8a18\u3057\u305f\u6761\u4ef6\u306b\u3088\u308b\u72ec\u81ea\u8a08\u7b97\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd1\u3065\u3044\u3066\u304f\u308b\u97f3\u304c\u9ad8\u304f\u3001\u9060\u3056\u304b\u308b\u97f3\u304c\u4f4e\u304f\u805e\u3053\u3048\u308b\u73fe\u8c61\u306f\u3001\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u3067\u306f\u3001\u97f3\u6e90\u304c\u3053\u3061\u3089\u3078\u52d5\u304f\u5834\u5408\u3068\u3001\u81ea\u5206\u304c\u97f3\u6e90\u3078\u5411\u304b\u3046\u5834\u5408\u306f\u3001\u540c\u3058\u901f\u3055\u306a\u3089\u540c\u3058\u97f3\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u9759\u304b\u306a\u7a7a\u6c17\u306e\u4e2d\u3092\u4f1d\u308f\u308b\u97f3\u3067\u306f\u3001\u53b3\u5bc6\u306b\u306f\u540c\u3058 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1556,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[207],"tags":[314],"class_list":["post-1558","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-human-interface","tag-doppler-effect"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-sound-doppler-source-observer-20261024-featured-80e16e58be68.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1558"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1558\/revisions"}],"predecessor-version":[{"id":1559,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1558\/revisions\/1559"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1556"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}