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Y, Z)\uff0c\u53d1\u51fa\u6b64\u4fe1\u53f7\u7684\u7cbe\u786e\u65f6\u95f4\u662fT1\u3002\u201d<\/p>\n<h3>\u7b2c\u4e8c\u6b65\uff1a\u63a5\u6536\u5668\u8ba1\u7b97\u4e0e\u6bcf\u9897\u536b\u661f\u7684\u8ddd\u79bb<\/h3>\n<p>\u5f53\u4f60\u7684\u624b\u673a\uff08GPS\u63a5\u6536\u5668\uff09\u6536\u5230\u8fd9\u4e2a\u4fe1\u53f7\u65f6\uff0c\u5b83\u4f1a\u8bb0\u5f55\u4e0b\u63a5\u6536\u5230\u7684\u65f6\u95f4T2\u3002\u7531\u4e8e\u4fe1\u53f7\u662f\u4ee5\u5149\u901f\u4f20\u64ad\u7684\uff0c\u63a5\u6536\u5668\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u65f6\u95f4\u5dee\uff08T2 - T1\uff09\u6765\u786e\u5b9a\u4fe1\u53f7\u5728\u592a\u7a7a\u4e2d\u4f20\u64ad\u4e86\u591a\u4e45\u3002<\/p>\n<p>\u6709\u4e86\u4fe1\u53f7\u4f20\u64ad\u65f6\u95f4\uff0c\u518d\u4e58\u4ee5\u5149\u901f\uff08\u4e00\u4e2a\u5df2\u77e5\u5e38\u6570\uff0c\u7ea6\u6bcf\u79d230\u4e07\u516c\u91cc\uff09\uff0c\u5c31\u53ef\u4ee5\u5f97\u5230\u63a5\u6536\u5668\u4e0e\u8fd9\u9897\u536b\u661f\u4e4b\u95f4\u7684\u76f4\u7ebf\u8ddd\u79bb\u3002<\/p>\n<ul>\n<li><strong>\u516c\u5f0f\u89e3\u6790\uff1a\u8ddd\u79bb = \u5149\u901f \u00d7 (T2 - T1)<\/strong><\/li>\n<\/ul>\n<p>\u8fd9\u91cc\u5b58\u5728\u4e00\u4e2a\u5173\u952e\u6311\u6218\uff1a\u63a5\u6536\u5668\u5185\u90e8\u7684\u65f6\u949f\u8fdc\u4e0d\u5982\u536b\u661f\u4e0a\u7684\u539f\u5b50\u949f\u7cbe\u786e\uff0c\u5b58\u5728\u5fae\u5c0f\u8bef\u5dee\u3002\u8fd9\u4e2a\u8bef\u5dee\u867d\u5c0f\uff0c\u4f46\u4e58\u4ee5\u5149\u901f\u540e\u4f1a\u9020\u6210\u5de8\u5927\u7684\u8ddd\u79bb\u8ba1\u7b97\u9519\u8bef\u3002\u8fd9\u4e2a\u95ee\u9898\u5c06\u5728\u7b2c\u4e09\u6b65\u4e2d\u901a\u8fc7\u5f15\u5165\u7b2c\u56db\u9897\u536b\u661f\u6765\u89e3\u51b3\u3002<\/p>\n<h3>\u6838\u5fc3\u539f\u7406\uff1a\u4e09\u8fb9\u6d4b\u91cf\u6cd5\uff08Trilateration\uff09\u7684\u53ef\u89c6\u5316\u89e3\u6790<\/h3>\n<p>\u4e09\u8fb9\u6d4b\u91cf\u6cd5\u662f\u57fa\u4e8e\u51e0\u4f55\u539f\u7406\uff0c\u901a\u8fc7\u6d4b\u91cf\u70b9\u5230\u4e09\u4e2a\u5df2\u77e5\u4f4d\u7f6e\u70b9\u7684\u8ddd\u79bb\u6765\u786e\u5b9a\u8be5\u70b9\u4f4d\u7f6e\u7684\u65b9\u6cd5\u3002\u5728GPS\u5b9a\u4f4d\u4e2d\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u662f\u4e09\u7ef4\u7684\u3002<\/p>\n<h4>\u4e00\u9897\u536b\u661f\uff1a\u786e\u5b9a\u4e00\u4e2a\u4ee5\u536b\u661f\u4e3a\u4e2d\u5fc3\u7684\u7403\u9762<\/h4>\n<p>\u5f53\u4f60\u63a5\u6536\u5230\u4e00\u9897\u536b\u661f\u7684\u4fe1\u53f7\u5e76\u8ba1\u7b97\u51fa\u8ddd\u79bb\uff08\u4f8b\u59821000\u516c\u91cc\uff09\u65f6\uff0c\u4f60\u53ea\u77e5\u9053\u81ea\u5df1\u4f4d\u4e8e\u4ee5\u8fd9\u9897\u536b\u661f\u4e3a\u7403\u5fc3\u3001\u4ee51000\u516c\u91cc\u4e3a\u534a\u5f84\u7684\u5de8\u5927\u7403\u9762\u4e0a\u7684\u67d0\u4e00\u70b9\u3002\u4f60\u53ef\u80fd\u5728\u4e9a\u6d32\uff0c\u4e5f\u53ef\u80fd\u5728\u592a\u5e73\u6d0b\u4e0a\u7a7a\u3002<\/p>\n<p><code>[Image: \u4e00\u9897\u536b\u661f\u786e\u5b9a\u4e00\u4e2a\u7403\u9762\uff0c\u63a5\u6536\u5668\u4f4d\u4e8e\u7403\u9762\u7684\u4efb\u610f\u4e00\u70b9]<\/code><\/p>\n<h4>\u4e24\u9897\u536b\u661f\uff1a\u786e\u5b9a\u4e00\u4e2a\u76f8\u4ea4\u7684\u5706\u73af<\/h4>\n<p>\u6b64\u65f6\uff0c\u4f60\u63a5\u6536\u5230\u7b2c\u4e8c\u9897\u536b\u661f\u7684\u4fe1\u53f7\uff0c\u5e76\u8ba1\u7b97\u51fa\u4e0e\u5b83\u7684\u8ddd\u79bb\uff08\u4f8b\u59821200\u516c\u91cc\uff09\u3002\u73b0\u5728\uff0c\u4f60\u7684\u4f4d\u7f6e\u5fc5\u987b\u540c\u65f6\u6ee1\u8db3\u4e24\u4e2a\u6761\u4ef6\uff1a\u65e2\u5728\u7b2c\u4e00\u9897\u536b\u661f\u7684\u7403\u9762\u4e0a\uff0c\u4e5f\u5728\u7b2c\u4e8c\u9897\u536b\u661f\u7684\u7403\u9762\u4e0a\u3002\u4e24\u4e2a\u7403\u4f53\u76f8\u4ea4\uff0c\u4f1a\u5f62\u6210\u4e00\u4e2a\u5b8c\u7f8e\u7684\u5706\u73af\u3002\u4f60\u7684\u53ef\u80fd\u4f4d\u7f6e\u4ece\u4e00\u4e2a\u65e0\u9650\u5927\u7684\u7403\u9762\u7f29\u5c0f\u5230\u4e86\u4e00\u4e2a\u5706\u73af\u4e0a\u3002<\/p>\n<p><code>[Image: \u4e24\u9897\u536b\u661f\u7684\u7403\u9762\u76f8\u4ea4\uff0c\u5f62\u6210\u4e00\u4e2a\u5706\u73af]<\/code><\/p>\n<h4>\u4e09\u9897\u536b\u661f\uff1a\u9501\u5b9a\u4e24\u4e2a\u53ef\u80fd\u7684\u5b9a\u4f4d\u70b9<\/h4>\n<p>\u63a5\u7740\uff0c\u7b2c\u4e09\u9897\u536b\u661f\u7684\u4fe1\u53f7\u88ab\u63a5\u6536\u5e76\u8ba1\u7b97\u51fa\u8ddd\u79bb\uff08\u4f8b\u59821100\u516c\u91cc\uff09\u3002\u8fd9\u4e2a\u65b0\u7684\u7403\u9762\u4f1a\u4e0e\u4e4b\u524d\u7684\u5706\u73af\u76f8\u4ea4\u4e8e\u4e24\u70b9\u3002\u4ece\u6570\u5b66\u4e0a\u8bb2\uff0c\u4f60\u7684\u4f4d\u7f6e\u53ea\u53ef\u80fd\u662f\u8fd9\u4e24\u4e2a\u70b9\u4e2d\u7684\u4e00\u4e2a\u3002\u901a\u5e38\uff0c\u8fd9\u4e24\u4e2a\u70b9\u4e00\u4e2a\u5728\u5730\u7403\u8868\u9762\u9644\u8fd1\uff0c\u53e6\u4e00\u4e2a\u5219\u5728\u9065\u8fdc\u7684\u5916\u592a\u7a7a\u3002\u63a5\u6536\u5668\u5185\u7684\u7b97\u6cd5\u53ef\u4ee5\u8f7b\u6613\u5730\u6392\u9664\u6389\u90a3\u4e2a\u4e0d\u5408\u7406\u7684\u70b9\uff0c\u4ece\u800c\u786e\u5b9a\u4f60\u5728\u5730\u7403\u4e0a\u7684\u4e8c\u7ef4\u4f4d\u7f6e\uff08\u7ecf\u5ea6\u548c\u7eac\u5ea6\uff09\u3002<\/p>\n<p><code>[Image: 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Y, Z\u5750\u6807\u548c\u65f6\u949f\u8bef\u5dee\u0394t\uff09\u7684\u56db\u5143\u65b9\u7a0b\u7ec4\uff0c\u63a5\u6536\u5668\u4e0d\u4ec5\u53ef\u4ee5\u8ba1\u7b97\u51fa\u81ea\u5df1\u7cbe\u786e\u7684\u4e09\u7ef4\u5750\u6807\uff08\u7ecf\u5ea6\u3001\u7eac\u5ea6\u3001\u9ad8\u5ea6\uff09\uff0c\u8fd8\u80fd\u540c\u65f6\u6821\u51c6\u81ea\u5df1\u7684\u5185\u90e8\u65f6\u949f\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48GPS\u5b9a\u4f4d\u81f3\u5c11\u9700\u8981\u56db\u9897\u536b\u661f\u624d\u80fd\u5b9e\u73b0\u7cbe\u51c6\u5b9a\u4f4d\u7684\u6839\u672c\u539f\u56e0\u3002<\/p>\n<h3>\u5f71\u54cd\u5b9a\u4f4d\u7cbe\u5ea6\u7684\u5173\u952e\u56e0\u7d20<\/h3>\n<p>\u7406\u8bba\u4e0aGPS\u53ef\u4ee5\u975e\u5e38\u7cbe\u786e\uff0c\u4f46\u5728\u73b0\u5b9e\u4e16\u754c\u4e2d\uff0c\u591a\u79cd\u56e0\u7d20\u4f1a\u5f71\u54cd\u5176\u6700\u7ec8\u7cbe\u5ea6\u3002<\/p>\n<ol>\n<li><strong>\u5927\u6c14\u5c42\u5ef6\u8fdf\uff08\u7535\u79bb\u5c42\u548c\u5bf9\u6d41\u5c42\uff09<\/strong>\uff1a\u536b\u661f\u4fe1\u53f7\u7a7f\u8fc7\u5730\u7403\u5927\u6c14\u5c42\u65f6\uff0c\u901f\u5ea6\u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u5bfc\u81f4\u8ba1\u7b97\u7684\u8ddd\u79bb\u504f\u5927\u3002\u73b0\u4ee3\u63a5\u6536\u5668\u901a\u8fc7\u53cc\u9891\u63a5\u6536\u6216\u5efa\u7acb\u6570\u5b66\u6a21\u578b\u6765\u524a\u5f31\u8fd9\u79cd\u5f71\u54cd\u3002<\/li>\n<li><strong>\u4fe1\u53f7\u591a\u8def\u5f84\u6548\u5e94<\/strong>\uff1a\u5728\u9ad8\u697c\u6797\u7acb\u7684\u57ce\u5e02\u5ce1\u8c37\u4e2d\uff0c\u536b\u661f\u4fe1\u53f7\u53ef\u80fd\u88ab\u5efa\u7b51\u7269\u53cd\u5c04\uff0c\u5bfc\u81f4\u63a5\u6536\u5668\u6536\u5230\u7684\u4fe1\u53f7\u8d70\u4e86\u201c\u5f2f\u8def\u201d\uff0c\u4f20\u64ad\u65f6\u95f4\u53d8\u957f\uff0c\u4ece\u800c\u8ba1\u7b97\u51fa\u9519\u8bef\u7684\u8ddd\u79bb\u3002<\/li>\n<li><strong>\u536b\u661f\u65f6\u949f\u8bef\u5dee\u4e0e\u8f68\u9053\u8bef\u5dee<\/strong>\uff1a\u5c3d\u7ba1\u5730\u9762\u7ad9\u4f1a\u4e0d\u65ad\u6821\u51c6\uff0c\u4f46\u536b\u661f\u4e0a\u7684\u539f\u5b50\u949f\u548c\u5176\u8f68\u9053\u4f4d\u7f6e\u4ecd\u5b58\u5728\u5fae\u5c0f\u504f\u5dee\u3002\u8fd9\u4e9b\u504f\u5dee\u4f1a\u901a\u8fc7\u5bfc\u822a\u7535\u6587\u5e7f\u64ad\u7ed9\u63a5\u6536\u5668\u8fdb\u884c\u4fee\u6b63\u3002<\/li>\n<li><strong>\u536b\u661f\u51e0\u4f55\u5206\u5e03\uff08DOP\u503c\uff09<\/strong>\uff1a\u63a5\u6536\u5668\u89c2\u6d4b\u5230\u7684\u51e0\u9897\u536b\u661f\u5728\u5929\u7a7a\u4e2d\u7684\u5206\u5e03\u60c5\u51b5\u4e5f\u4f1a\u5f71\u54cd\u7cbe\u5ea6\u3002\u5982\u679c\u536b\u661f\u5747\u5300\u5206\u5e03\u5728\u5929\u7a7a\u56db\u5468\uff0c\u5b9a\u4f4d\u7cbe\u5ea6\u4f1a\u5f88\u9ad8\uff1b\u5982\u679c\u5b83\u4eec\u805a\u96c6\u5728\u4e00\u4e2a\u5f88\u5c0f\u7684\u533a\u57df\uff0c\u5219\u4f1a\u4ea7\u751f\u8f83\u5927\u7684\u8bef\u5dee\u3002\u8fd9\u4e2a\u6307\u6807\u901a\u5e38\u7528DOP\uff08Dilution of Precision\uff0c\u7cbe\u5ea6\u7a00\u91ca\u5ea6\uff09\u6765\u8861\u91cf\u3002<\/li>\n<\/ol>\n<h2>GPS\u5b9e\u65f6\u5b9a\u4f4d\u7684\u5178\u578b\u5e94\u7528\u573a\u666f<\/h2>\n<p>\u4ece\u6700\u521d\u7684\u519b\u7528\u6280\u672f\uff0cGPS\u5df2\u7ecf\u6e17\u900f\u5230\u73b0\u4ee3\u793e\u4f1a\u7684\u65b9\u65b9\u9762\u9762\uff0c\u91cd\u5851\u4e86\u4f17\u591a\u884c\u4e1a\u7684\u8fd0\u4f5c\u6a21\u5f0f\u3002<\/p>\n<h3>\u4e2a\u4eba\u751f\u6d3b\u9886\u57df<\/h3>\n<ol>\n<li><strong>\u4ea4\u901a\u5bfc\u822a\u4e0e\u8def\u7ebf\u89c4\u5212<\/strong>\uff1a\u8fd9\u662fGPS\u6700\u5e7f\u4e3a\u4eba\u77e5\u7684\u5e94\u7528\u3002\u65e0\u8bba\u662f\u9a7e\u8f66\u3001\u6b65\u884c\u8fd8\u662f\u4f7f\u7528\u516c\u5171\u4ea4\u901a\uff0c\u5b9e\u65f6\u5bfc\u822a\u90fd\u4f9d\u8d56\u4e8eGPS\u63d0\u4f9b\u7684\u4f4d\u7f6e\u4fe1\u606f\u3002<\/li>\n<li><strong>\u5171\u4eab\u51fa\u884c\u4e0e\u5916\u5356\u8ffd\u8e2a<\/strong>\uff1a\u5171\u4eab\u5355\u8f66\u3001\u7f51\u7ea6\u8f66\u548c\u5916\u5356\u5e73\u53f0\u4f7f\u7528GPS\u6765\u5b9a\u4f4d\u8f66\u8f86\/\u9a91\u624b\u7684\u4f4d\u7f6e\uff0c\u65b9\u4fbf\u7528\u6237\u5bfb\u627e\u548c\u8ffd\u8e2a\u8ba2\u5355\u3002<\/li>\n<li><strong>\u8fd0\u52a8\u5065\u5eb7\u8bb0\u5f55<\/strong>\uff1a\u667a\u80fd\u624b\u8868\u548c\u8fd0\u52a8App\u901a\u8fc7GPS\u8bb0\u5f55\u8dd1\u6b65\u3001\u9a91\u884c\u6216\u5f92\u6b65\u7684\u8def\u7ebf\u3001\u8ddd\u79bb\u548c\u914d\u901f\uff0c\u5e2e\u52a9\u7528\u6237\u91cf\u5316\u81ea\u5df1\u7684\u8fd0\u52a8\u6210\u679c\u3002<\/li>\n<\/ol>\n<h3>\u5546\u4e1a\u4e0e\u5de5\u4e1a\u9886\u57df<\/h3>\n<ol>\n<li><strong>\u73b0\u4ee3\u7269\u6d41\u4e0e\u8f66\u961f\u7ba1\u7406<\/strong>\uff1a\u7269\u6d41\u516c\u53f8\u901a\u8fc7\u5728\u8d27\u8f66\u4e0a\u5b89\u88c5GPS\u8bbe\u5907\uff0c\u5b9e\u65f6\u76d1\u63a7\u8d27\u7269\u4f4d\u7f6e\uff0c\u4f18\u5316\u8fd0\u8f93\u8def\u7ebf\uff0c\u63d0\u9ad8\u6548\u7387\u5e76\u786e\u4fdd\u8d27\u7269\u5b89\u5168\u3002<\/li>\n<li><strong>\u7cbe\u51c6\u519c\u4e1a\u4e0e\u81ea\u52a8\u5316\u8015\u4f5c<\/strong>\uff1a\u7ed3\u5408GPS\u548cGIS\uff08\u5730\u7406\u4fe1\u606f\u7cfb\u7edf\uff09\uff0c\u62d6\u62c9\u673a\u7b49\u519c\u7528\u673a\u68b0\u53ef\u4ee5\u5b9e\u73b0\u5398\u7c73\u7ea7\u7684\u7cbe\u51c6\u5bfc\u822a\uff0c\u8fdb\u884c\u81ea\u52a8\u5316\u64ad\u79cd\u3001\u65bd\u80a5\u548c\u6536\u5272\uff0c\u51cf\u5c11\u6d6a\u8d39\u5e76\u63d0\u9ad8\u4ea7\u91cf\u3002<\/li>\n<li><strong>\u5de5\u7a0b\u6d4b\u7ed8\u4e0e\u5730\u7406\u4fe1\u606f\u7cfb\u7edf\uff08GIS\uff09<\/strong>\uff1a\u5728\u5efa\u7b51\u3001\u9053\u8def\u548c\u6865\u6881\u65bd\u5de5\u4e2d\uff0cGPS\u63d0\u4f9b\u4e86\u9ad8\u7cbe\u5ea6\u7684\u6d4b\u91cf\u5de5\u5177\uff0c\u66ff\u4ee3\u4e86\u4f20\u7edf\u7684\u6d4b\u7ed8\u65b9\u6cd5\uff0c\u6781\u5927\u5730\u63d0\u5347\u4e86\u5de5\u4f5c\u6548\u7387\u548c\u51c6\u786e\u6027\u3002<\/li>\n<\/ol>\n<h3>\u516c\u5171\u5b89\u5168\u4e0e\u79d1\u7814\u9886\u57df<\/h3>\n<ol>\n<li><strong>\u7d27\u6025\u6551\u63f4\u4e0e\u707e\u5bb3\u76d1\u63a7<\/strong>\uff1a\u5f53\u53d1\u751f\u5730\u9707\u3001\u6d2a\u6c34\u7b49\u81ea\u7136\u707e\u5bb3\u65f6\uff0cGPS\u662f\u6551\u63f4\u961f\u5b9a\u4f4d\u53d7\u707e\u533a\u57df\u548c\u81ea\u8eab\u4f4d\u7f6e\u7684\u5173\u952e\u5de5\u5177\u3002\u5b83\u4e5f\u88ab\u7528\u4e8e\u76d1\u6d4b\u5730\u58f3\u677f\u5757\u7684\u5fae\u5c0f\u79fb\u52a8\uff0c\u4e3a\u5730\u9707\u9884\u6d4b\u63d0\u4f9b\u6570\u636e\u652f\u6301\u3002<\/li>\n<li><strong>\u6c14\u8c61\u9884\u6d4b\u4e0e\u5730\u7403\u79d1\u5b66\u7814\u7a76<\/strong>\uff1a\u901a\u8fc7\u5206\u6790GPS\u4fe1\u53f7\u7a7f\u8fc7\u5927\u6c14\u5c42\u65f6\u7684\u5ef6\u8fdf\uff0c\u79d1\u5b66\u5bb6\u53ef\u4ee5\u63a8\u65ad\u5927\u6c14\u4e2d\u7684\u6c34\u84b8\u6c14\u542b\u91cf\uff0c\u4ece\u800c\u6539\u8fdb\u5929\u6c14\u9884\u62a5\u6a21\u578b\u3002<\/li>\n<li><strong>\u5168\u7403\u91d1\u878d\u7cfb\u7edf\u7684\u65f6\u95f4\u540c\u6b65<\/strong>\uff1aGPS\u63d0\u4f9b\u7684\u9ad8\u7cbe\u5ea6\u65f6\u95f4\u4fe1\u606f\uff0c\u662f\u5168\u7403\u94f6\u884c\u548c\u91d1\u878d\u4ea4\u6613\u7cfb\u7edf\u8fdb\u884c\u65f6\u95f4\u540c\u6b65\u7684\u57fa\u7840\uff0c\u786e\u4fdd\u4e86\u8de8\u56fd\u4ea4\u6613\u7684\u51c6\u786e\u6027\u548c\u5b89\u5168\u6027\u3002<\/li>\n<\/ol>\n<h2>\u5168\u7403\u56db\u5927\u536b\u661f\u5b9a\u4f4d\u7cfb\u7edf\u6982\u89c8<\/h2>\n<p>\u867d\u7136\u6211\u4eec\u901a\u5e38\u5c06\u536b\u661f\u5b9a\u4f4d\u7edf\u79f0\u4e3aGPS\uff0c\u4f46\u5b9e\u9645\u4e0a\u5168\u7403\u5b58\u5728\u591a\u4e2a\u7531\u4e0d\u540c\u56fd\u5bb6\u6216\u5730\u533a\u8fd0\u8425\u7684\u5168\u7403\u5bfc\u822a\u536b\u661f\u7cfb\u7edf\uff08GNSS\uff09\u3002\u73b0\u4ee3\u7684\u63a5\u6536\u5668\u901a\u5e38\u80fd\u540c\u65f6\u4f7f\u7528\u591a\u4e2a\u7cfb\u7edf\uff0c\u4ee5\u63d0\u9ad8\u5b9a\u4f4d\u7684\u53ef\u9760\u6027\u548c\u7cbe\u5ea6\u3002<\/p>\n<h3>\u7f8e\u56fd\uff1a\u5168\u7403\u5b9a\u4f4d\u7cfb\u7edf\uff08GPS\uff09<\/h3>\n<p>\u6700\u65e9\u5efa\u6210\u3001\u76ee\u524d\u5e94\u7528\u6700\u5e7f\u6cdb\u7684\u7cfb\u7edf\uff0c\u662f\u8be5\u9886\u57df\u7684\u5f00\u521b\u8005\u548c\u4e8b\u5b9e\u4e0a\u7684\u6807\u51c6\u3002<\/p>\n<h3>\u4e2d\u56fd\uff1a\u5317\u6597\u536b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