{"id":5377,"date":"2026-02-23T00:02:25","date_gmt":"2026-02-22T16:02:25","guid":{"rendered":"https:\/\/www.xiaobuwq.com\/blog\/gps-real-time-positioning-types-accuracy-classification"},"modified":"2026-02-23T00:02:25","modified_gmt":"2026-02-22T16:02:25","slug":"gps-real-time-positioning-types-accuracy-classification","status":"publish","type":"post","link":"https:\/\/www.xiaobuwq.com\/blog\/gps-real-time-positioning-types-accuracy-classification","title":{"rendered":"GPS\u5b9e\u65f6\u5b9a\u4f4d\u7684\u7c7b\u578b\u6709\u54ea\u4e9b\uff1f\u4e0d\u540c\u7cbe\u5ea6\u5b9a\u4f4d\u7684\u5206\u7c7b\u89e3\u6790"},"content":{"rendered":"<p>GPS\u5b9e\u65f6\u5b9a\u4f4d\u6839\u636e\u5176\u6280\u672f\u539f\u7406\u548c\u6700\u7ec8\u80fd\u8fbe\u5230\u7684\u7cbe\u5ea6\uff0c\u53ef\u4ee5\u6e05\u6670\u5730\u5212\u5206\u4e3a\u4e09\u5927\u9636\u68af\uff1a\u7c73\u7ea7\u7684\u6807\u51c6\u5b9a\u4f4d\u3001\u4e9a\u7c73\u7ea7\u7684\u589e\u5f3a\u5b9a\u4f4d\uff0c\u4ee5\u53ca\u5398\u7c73\u4e43\u81f3\u6beb\u7c73\u7ea7\u7684\u9ad8\u7cbe\u5ea6\u5b9a\u4f4d\u3002\u5176\u80cc\u540e\u5bf9\u5e94\u7684\u6838\u5fc3\u6280\u672f\u8def\u5f84\u4e3b\u8981\u5305\u62ec\u5355\u70b9\u5b9a\u4f4d\uff08SPS\uff09\u3001\u5dee\u5206GPS\uff08DGPS\uff09\u3001\u5b9e\u65f6\u52a8\u6001\u5b9a\u4f4d\uff08RTK\uff09\u4ee5\u53ca\u7cbe\u5bc6\u5355\u70b9\u5b9a\u4f4d\uff08PPP\uff09\u3002<\/p>\n<p>\u5728\u5b9e\u9645\u7684\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u9009\u62e9\u4f55\u79cd\u6280\u672f\uff0c\u672c\u8d28\u4e0a\u662f\u5728\u7cbe\u5ea6\u3001\u6210\u672c\u3001\u5b9e\u65f6\u6027\u4e0e\u53ef\u9760\u6027\u4e4b\u95f4\u8fdb\u884c\u6743\u8861\u3002\u4ece\u6211\u4eec\u65e5\u5e38\u4f7f\u7528\u7684\u624b\u673a\u5bfc\u822a\uff0c\u5230\u5bf9\u7cbe\u5ea6\u8981\u6c42\u6781\u4e3a\u4e25\u82db\u7684\u81ea\u52a8\u9a7e\u9a76\u6216\u6d4b\u7ed8\u5de5\u7a0b\uff0c\u5176\u5e95\u5c42\u4f9d\u8d56\u7684\u5b9a\u4f4d\u6280\u672f\u5b58\u5728\u7740\u672c\u8d28\u7684\u5dee\u5f02\u3002<\/p>\n<h2>\u6309\u7cbe\u5ea6\u5212\u5206\uff1a\u4ece\u7c73\u7ea7\u5230\u5398\u7c73\u7ea7\u7684\u5b9a\u4f4d\u6280\u672f\u9636\u68af<\/h2>\n<h3>\u4ec0\u4e48\u662f\u6807\u51c6\u5355\u70b9\u5b9a\u4f4d (SPS - Standard Positioning Service)\uff1f<\/h3>\n<p>SPS\uff0c\u5373\u6807\u51c6\u5355\u70b9\u5b9a\u4f4d\uff0c\u662fGPS\u5e94\u7528\u4e2d\u6700\u57fa\u7840\u3001\u4e5f\u662f\u6700\u666e\u53ca\u7684\u4e00\u79cd\u5f62\u5f0f\u3002\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u975e\u5e38\u76f4\u63a5\uff1a\u4e00\u90e8\u72ec\u7acb\u7684\u63a5\u6536\u673a\uff0c\u901a\u8fc7\u63a5\u6536\u81f3\u5c11\u56db\u9897\u536b\u661f\u7684\u4fe1\u53f7\uff0c\u5229\u7528\u536b\u661f\u661f\u5386\u4e2d\u5e7f\u64ad\u7684\u81ea\u8eab\u4f4d\u7f6e\u548c\u65f6\u95f4\u4fe1\u606f\uff0c\u6765\u89e3\u7b97\u51fa\u63a5\u6536\u673a\u5f53\u524d\u7684\u4e09\u7ef4\u5750\u6807\u3002<\/p>\n<ul>\n<li><strong>\u5b9a\u4f4d\u7cbe\u5ea6\uff1a<\/strong> \u901a\u5e38\u57285-10\u7c73\u8303\u56f4\u3002\u8fd9\u4e2a\u7cbe\u5ea6\u5bf9\u4e8e\u5927\u4f17\u6d88\u8d39\u7ea7\u5e94\u7528\uff0c\u5982\u8f66\u8f7d\u5bfc\u822a\uff0c\u5df2\u7ecf\u57fa\u672c\u591f\u7528\u3002<\/li>\n<li><strong>\u6838\u5fc3\u75db\u70b9\/\u8bef\u5dee\u6765\u6e90\uff1a<\/strong> SPS\u7684\u7cbe\u5ea6\u74f6\u9888\u662f\u7cfb\u7edf\u6027\u7684\u3002\u536b\u661f\u4fe1\u53f7\u4ece\u592a\u7a7a\u7a7f\u900f\u5927\u6c14\u5c42\u5230\u8fbe\u5730\u9762\u63a5\u6536\u673a\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u53d7\u5230\u591a\u79cd\u56e0\u7d20\u7684\u5e72\u6270\u3002\u4e3b\u8981\u5305\u62ec\uff1a\u7535\u79bb\u5c42\u548c\u5bf9\u6d41\u5c42\u5bf9\u4fe1\u53f7\u4ea7\u751f\u7684\u5ef6\u8fdf\u3001\u536b\u661f\u81ea\u8eab\u8f68\u9053\u4f4d\u7f6e\u7684\u9884\u62a5\u8bef\u5dee\u3001\u536b\u661f\u539f\u5b50\u949f\u7684\u5fae\u5c0f\u504f\u5dee\uff0c\u4ee5\u53ca\u4fe1\u53f7\u88ab\u5468\u56f4\u5efa\u7b51\u7269\u53cd\u5c04\u540e\u518d\u8fdb\u5165\u63a5\u6536\u673a\u5f62\u6210\u7684\u201c\u591a\u8def\u5f84\u6548\u5e94\u201d\u3002\u8fd9\u4e9b\u8bef\u5dee\u6e90\u7684\u53e0\u52a0\uff0c\u5171\u540c\u51b3\u5b9a\u4e86SPS\u53ea\u80fd\u63d0\u4f9b\u7c73\u7ea7\u7cbe\u5ea6\u7684\u5b9a\u4f4d\u7ed3\u679c\u3002<\/li>\n<li><strong>\u5b9e\u6218\u5e94\u7528\u6848\u4f8b\uff1a<\/strong>\n<ul>\n<li><strong>\u4e2a\u4eba\u8f66\u8f7d\u5bfc\u822a\u4e0e\u624b\u673a\u5730\u56feApp\uff1a<\/strong> \u6211\u4eec\u65e5\u5e38\u9a7e\u9a76\u548c\u6b65\u884c\u65f6\u4f7f\u7528\u7684\u5bfc\u822a\u529f\u80fd\uff0c\u5176\u5e95\u5c42\u903b\u8f91\u5c31\u662fSPS\u3002<\/li>\n<li><strong>\u6237\u5916\u8fd0\u52a8\u624b\u8868\u4e0e\u8f68\u8ff9\u8bb0\u5f55\uff1a<\/strong> \u8bb0\u5f55\u8dd1\u6b65\u3001\u9a91\u884c\u7684\u8def\u7ebf\u548c\u8ddd\u79bb\uff0cSPS\u63d0\u4f9b\u4e86\u8db3\u591f\u7684\u7cbe\u5ea6\u652f\u6301\u3002<\/li>\n<li><strong>\u7269\u6d41\u8f66\u8f86\u57fa\u7840\u4f4d\u7f6e\u8ddf\u8e2a\uff1a<\/strong> \u5bf9\u4e8e\u4ec5\u9700\u4e86\u89e3\u8f66\u8f86\u5927\u6982\u4f4d\u7f6e\u3001\u8fdb\u884c\u8def\u7ebf\u89c4\u5212\u7684\u8f66\u961f\u7ba1\u7406\uff0cSPS\u662f\u4e00\u79cd\u6781\u5177\u6210\u672c\u6548\u76ca\u7684\u65b9\u6848\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4ec0\u4e48\u662f\u8f85\u52a9\u5168\u7403\u5b9a\u4f4d\u7cfb\u7edf (A-GPS - Assisted GPS)\uff1f<\/h3>\n<p>A-GPS\u5e76\u975e\u4e00\u79cd\u72ec\u7acb\u7684\u3001\u65e8\u5728\u63d0\u5347\u7cbe\u5ea6\u7684\u5b9a\u4f4d\u6280\u672f\uff0c\u800c\u662f\u4e00\u79cd\u201c\u52a0\u901f\u201d\u6280\u672f\u3002\u5b83\u7684\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e\u5927\u5e45\u7f29\u77ed\u63a5\u6536\u673a\u7684\u9996\u6b21\u5b9a\u4f4d\u65f6\u95f4\uff08Time to First Fix, TTFF\uff09\u3002<\/p>\n<ul>\n<li><strong>\u6280\u672f\u539f\u7406\uff1a<\/strong> \u4f20\u7edf\u7684GPS\u63a5\u6536\u673a\u5728\u5f00\u673a\u65f6\uff08\u5c24\u5176\u662f\u51b7\u542f\u52a8\uff09\uff0c\u9700\u8981\u82b1\u8d39\u8f83\u957f\u65f6\u95f4\u5728\u5e7f\u9614\u7684\u9891\u6bb5\u4e0a\u641c\u7d22\u3001\u6355\u83b7\u5e76\u9501\u5b9a\u536b\u661f\u4fe1\u53f7\uff0c\u7136\u540e\u518d\u4e0b\u8f7d\u5bfc\u822a\u7535\u6587\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u53ef\u80fd\u9700\u8981\u51e0\u5341\u79d2\u751a\u81f3\u6570\u5206\u949f\u3002A-GPS\u5de7\u5999\u5730\u5229\u7528\u4e86\u65e0\u5904\u4e0d\u5728\u7684\u79fb\u52a8\u901a\u4fe1\u7f51\u7edc\u3002\u901a\u8fc7\u57fa\u7ad9\uff0c\u624b\u673a\u53ef\u4ee5\u5feb\u901f\u4ece\u7f51\u7edc\u670d\u52a1\u5668\u83b7\u53d6\u5230\u7cbe\u786e\u7684\u536b\u661f\u661f\u5386\u3001\u65f6\u95f4\u3001\u4ee5\u53ca\u63a5\u6536\u673a\u6982\u7565\u4f4d\u7f6e\u7b49\u8f85\u52a9\u4fe1\u606f\u3002\u6709\u4e86\u8fd9\u4e9b\u201c\u9884\u62a5\u201d\uff0c\u63a5\u6536\u673a\u5c31\u80fd\u6709\u7684\u653e\u77e2\u5730\u8fdb\u884c\u4fe1\u53f7\u6355\u83b7\uff0c\u6781\u5927\u5730\u7f29\u77ed\u4e86\u5b9a\u4f4d\u542f\u52a8\u65f6\u95f4\u3002<\/li>\n<li><strong>\u5b9a\u4f4d\u7cbe\u5ea6\uff1a<\/strong> A-GPS\u672c\u8eab\u4e0d\u63d0\u5347\u6700\u7ec8\u7684\u5b9a\u4f4d\u7cbe\u5ea6\uff0c\u5176\u7a33\u5b9a\u540e\u7684\u7cbe\u5ea6\u4e0eSPS\u5728\u540c\u4e00\u6c34\u5e73\uff0c\u53735-10\u7c73\u3002\u5b83\u7684\u6838\u5fc3\u8d21\u732e\u662f\u201c\u5feb\u201d\uff0c\u800c\u975e\u201c\u51c6\u201d\u3002<\/li>\n<li><strong>\u5b9e\u6218\u5e94\u7528\u6848\u4f8b\uff1a<\/strong>\n<ul>\n<li><strong>\u51e0\u4e4e\u6240\u6709\u73b0\u4ee3\u667a\u80fd\u624b\u673a\u7684\u5b9a\u4f4d\u529f\u80fd\uff1a<\/strong> \u5f53\u4f60\u5728\u5efa\u7b51\u5bc6\u96c6\u533a\u6253\u5f00\u5730\u56fe\uff0c\u80fd\u591f\u79d2\u901f\u5b9a\u4f4d\uff0c\u8fd9\u80cc\u540e\u5c31\u662fA-GPS\u5728\u53d1\u6325\u4f5c\u7528\u3002<\/li>\n<li><strong>\u7d27\u6025\u547c\u53eb\u5b9a\u4f4d\u670d\u52a1\uff08E911\uff09\uff1a<\/strong> \u5728\u7d27\u6025\u60c5\u51b5\u4e0b\uff0c\u5feb\u901f\u786e\u5b9a\u547c\u53eb\u8005\u7684\u4f4d\u7f6e\u81f3\u5173\u91cd\u8981\uff0cA-GPS\u786e\u4fdd\u4e86\u5b9a\u4f4d\u7684\u5373\u65f6\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4ec0\u4e48\u662f\u5dee\u5206\u5168\u7403\u5b9a\u4f4d\u7cfb\u7edf (DGPS - Differential GPS)\uff1f<\/h3>\n<p>DGPS\u662f\u7b2c\u4e00\u79cd\u771f\u6b63\u610f\u4e49\u4e0a\u5c06\u5b9a\u4f4d\u7cbe\u5ea6\u4ece\u7c73\u7ea7\u63d0\u5347\u5230\u4e9a\u7c73\u7ea7\u7684\u589e\u5f3a\u6280\u672f\u3002\u5b83\u7684\u6838\u5fc3\u601d\u60f3\u5728\u4e8e\u901a\u8fc7\u201c\u5bf9\u6bd4\u201d\u6765\u6d88\u9664\u5171\u540c\u8bef\u5dee\u3002<\/p>\n<ul>\n<li><strong>\u6280\u672f\u539f\u7406\uff1a<\/strong> DGPS\u7cfb\u7edf\u7531\u4e00\u4e2a\u57fa\u51c6\u7ad9\u548c\u4e00\u4e2a\u6216\u591a\u4e2a\u6d41\u52a8\u7ad9\uff08\u7528\u6237\u63a5\u6536\u673a\uff09\u7ec4\u6210\u3002\u57fa\u51c6\u7ad9\u88ab\u7cbe\u786e\u5730\u8bbe\u7f6e\u5728\u4e00\u4e2a\u5df2\u77e5\u5750\u6807\u70b9\u4e0a\uff0c\u5b83\u4f1a\u50cf\u6d41\u52a8\u7ad9\u4e00\u6837\u6301\u7eed\u63a5\u6536\u536b\u661f\u4fe1\u53f7\u5e76\u8ba1\u7b97\u81ea\u5df1\u7684\u4f4d\u7f6e\u3002\u7531\u4e8e\u57fa\u51c6\u7ad9\u7684\u771f\u5b9e\u5750\u6807\u662f\u5df2\u77e5\u7684\uff0c\u5b83\u4fbf\u53ef\u4ee5\u53cd\u7b97\u51fa\u6b64\u523b\u7531\u5404\u79cd\u8bef\u5dee\u6e90\uff08\u5982\u5927\u6c14\u5ef6\u8fdf\u3001\u536b\u661f\u949f\u5dee\u7b49\uff09\u9020\u6210\u7684\u603b\u5b9a\u4f4d\u8bef\u5dee\u3002\u968f\u540e\uff0c\u57fa\u51c6\u7ad9\u901a\u8fc7\u6570\u636e\u94fe\uff08\u5982\u65e0\u7ebf\u7535\u4fe1\u6807\uff09\u5c06\u8fd9\u4e2a\u8bef\u5dee\u7684\u201c\u6539\u6b63\u6570\u201d\u5b9e\u65f6\u5e7f\u64ad\u51fa\u53bb\u3002\u9644\u8fd1\u7684\u6d41\u52a8\u7ad9\u5728\u63a5\u6536\u5230\u8fd9\u4e2a\u6539\u6b63\u6570\u540e\uff0c\u5c31\u53ef\u4ee5\u5bf9\u81ea\u5df1\u7684\u5b9a\u4f4d\u7ed3\u679c\u8fdb\u884c\u4fee\u6b63\uff0c\u4ece\u800c\u5f97\u5230\u66f4\u7cbe\u786e\u7684\u4f4d\u7f6e\u3002<\/li>\n<li><strong>\u6838\u5fc3\u903b\u8f91\uff1a<\/strong> \u8fd9\u79cd\u65b9\u6cd5\u7684\u6709\u6548\u6027\u57fa\u4e8e\u4e00\u4e2a\u524d\u63d0\u5047\u8bbe\uff1a\u5728\u4e00\u5b9a\u533a\u57df\u5185\uff08\u901a\u5e38\u662f\u51e0\u5341\u516c\u91cc\uff09\uff0c\u57fa\u51c6\u7ad9\u548c\u6d41\u52a8\u7ad9\u6240\u7ecf\u5386\u7684\u5927\u6c14\u5ef6\u8fdf\u3001\u536b\u661f\u8f68\u9053\u8bef\u5dee\u7b49\u662f\u9ad8\u5ea6\u76f8\u4f3c\u7684\u3002\u56e0\u6b64\uff0c\u57fa\u51c6\u7ad9\u7b97\u51fa\u7684\u8bef\u5dee\u6539\u6b63\uff0c\u5bf9\u6d41\u52a8\u7ad9\u540c\u6837\u9002\u7528\u3002\u8fd9\u662f\u4e00\u79cd\u975e\u5e38\u9ad8\u6548\u7684\u201c\u5171\u540c\u8bef\u5dee\u6d88\u9664\u201d\u7b56\u7565\u3002<\/li>\n<li><strong>\u5b9a\u4f4d\u7cbe\u5ea6\uff1a<\/strong> \u4e9a\u7c73\u7ea7\u5230\u7c73\u7ea7\uff080.5-2\u7c73\uff09\u3002<\/li>\n<li><strong>\u5b9e\u6218\u5e94\u7528\u6848\u4f8b\uff1a<\/strong>\n<ul>\n<li><strong>\u8239\u8236\u5bfc\u822a\u4e0e\u6e2f\u53e3\u7ba1\u7406\uff1a<\/strong> \u5728\u822a\u9053\u548c\u6e2f\u53e3\u7b49\u5bf9\u7cbe\u5ea6\u6709\u4e00\u5b9a\u8981\u6c42\u7684\u573a\u666f\uff0cDGPS\u80fd\u63d0\u4f9b\u53ef\u9760\u7684\u5bfc\u822a\u3002<\/li>\n<li><strong>\u8d44\u6e90\u52d8\u63a2\u4e0e\u73af\u5883\u6d4b\u7ed8\uff1a<\/strong> \u5728\u5927\u8303\u56f4\u7684\u5730\u7406\u4fe1\u606f\u6536\u96c6\u4e2d\uff0cDGPS\u63d0\u4f9b\u4e86\u6bd4SPS\u66f4\u53ef\u9760\u7684\u7cbe\u5ea6\u3002<\/li>\n<li><strong>\u57fa\u7840\u7684\u7cbe\u51c6\u519c\u4e1a\uff1a<\/strong> \u4f8b\u5982\uff0c\u6839\u636e\u9884\u8bbe\u5730\u56fe\u5bf9\u5927\u7247\u519c\u7530\u8fdb\u884c\u5206\u533a\u65bd\u80a5\uff0cDGPS\u7684\u7cbe\u5ea6\u8db3\u4ee5\u6ee1\u8db3\u8981\u6c42\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4ec0\u4e48\u662f\u5b9e\u65f6\u52a8\u6001\u5b9a\u4f4d (RTK - Real-Time Kinematic)\uff1f<\/h3>\n<p>\u5982\u679c\u8bf4DGPS\u662f\u5b9a\u4f4d\u7cbe\u5ea6\u7684\u4e00\u6b21\u91cd\u8981\u4f18\u5316\uff0c\u90a3\u4e48RTK\u5219\u662f\u4e00\u6b21\u8d28\u7684\u98de\u8dc3\uff0c\u5b83\u76f4\u63a5\u5c06\u5b9e\u65f6\u5b9a\u4f4d\u7cbe\u5ea6\u5e26\u5165\u4e86\u5398\u7c73\u7ea7\u65f6\u4ee3\u3002<\/p>\n<ul>\n<li><strong>\u6280\u672f\u539f\u7406\uff1a<\/strong> RTK\u4e0eDGPS\u5728\u7cfb\u7edf\u6784\u6210\u4e0a\u7c7b\u4f3c\uff0c\u90fd\u91c7\u7528\u201c\u57fa\u51c6\u7ad9+\u6d41\u52a8\u7ad9\u201d\u7684\u6a21\u5f0f\u3002\u4f46\u5176\u6839\u672c\u533a\u522b\u5728\u4e8e\uff0cDGPS\u53ea\u5229\u7528\u4e86GPS\u4fe1\u53f7\u7684\u4f2a\u8ddd\u89c2\u6d4b\u91cf\uff08\u4e00\u79cd\u901a\u8fc7\u4fe1\u53f7\u4f20\u64ad\u65f6\u95f4\u6d4b\u7b97\u7684\u8ddd\u79bb\uff09\uff0c\u800cRTK\u6280\u672f\u5219\u66f4\u8fdb\u4e00\u6b65\uff0c\u5229\u7528\u4e86\u7cbe\u5ea6\u66f4\u9ad8\u7684\u8f7d\u6ce2\u76f8\u4f4d\u89c2\u6d4b\u91cf\u3002\u8f7d\u6ce2\u7684\u6ce2\u957f\u6781\u77ed\uff08\u7ea619\u5398\u7c73\uff09\uff0c\u901a\u8fc7\u89e3\u7b97\u6574\u5468\u6a21\u7cca\u5ea6\u6280\u672f\uff0cRTK\u53ef\u4ee5\u5b9e\u73b0\u8fdc\u8d85\u4f2a\u8ddd\u7684\u6d4b\u8ddd\u7cbe\u5ea6\uff0c\u4ece\u800c\u83b7\u5f97\u5398\u7c73\u7ea7\u7684\u5750\u6807\u3002<\/li>\n<li><strong>\u5b9a\u4f4d\u7cbe\u5ea6\uff1a<\/strong> \u7a33\u5b9a\u89e3\u7b97\u540e\u53ef\u8fbe1-2\u5398\u7c73\u3002<\/li>\n<li><strong>\u6838\u5fc3\u8981\u6c42\uff1a<\/strong> \u5b9e\u73b0RTK\u9700\u8981\u4e09\u4e2a\u5173\u952e\u8981\u7d20\uff1a\u4e00\u4e2a\u5750\u6807\u7cbe\u786e\u7684\u56fa\u5b9a\u57fa\u51c6\u7ad9\uff0c\u4e00\u4e2a\u79fb\u52a8\u7684\u6d41\u52a8\u7ad9\uff0c\u4ee5\u53ca\u4e00\u6761\u7a33\u5b9a\u3001\u4f4e\u5ef6\u8fdf\u7684\u6570\u636e\u901a\u4fe1\u94fe\u8def\u3002\u8fd9\u6761\u94fe\u8def\u8d1f\u8d23\u5c06\u57fa\u51c6\u7ad9\u7684\u539f\u59cb\u89c2\u6d4b\u6570\u636e\u6216\u5dee\u5206\u6539\u6b63\u6570\u636e\u5b9e\u65f6\u4f20\u8f93\u7ed9\u6d41\u52a8\u7ad9\uff0c\u901a\u4fe1\u65b9\u5f0f\u53ef\u4ee5\u662f\u4f20\u7edf\u7684\u65e0\u7ebf\u7535\u53f0\uff0c\u4e5f\u53ef\u4ee5\u662f\u66f4\u7075\u6d3b\u76844G\/5G\u79fb\u52a8\u7f51\u7edc\uff08\u5373\u7f51\u7edcRTK\uff09\u3002<\/li>\n<li><strong>\u5b9e\u6218\u5e94\u7528\u6848\u4f8b\uff1a<\/strong>\n<ul>\n<li><strong>\u6d4b\u7ed8\u5de5\u7a0b\u4e0e\u5730\u7c4d\u6d4b\u91cf\uff1a<\/strong> RTK\u662f\u73b0\u4ee3\u6d4b\u7ed8\u4f5c\u4e1a\u7684\u6807\u914d\uff0c\u5f7b\u5e95\u6539\u53d8\u4e86\u4f20\u7edf\u6d4b\u91cf\u7684\u4f5c\u4e1a\u6a21\u5f0f\u3002<\/li>\n<li><strong>\u5efa\u7b51\u65bd\u5de5\u653e\u6837\u4e0e\u673a\u68b0\u63a7\u5236\uff1a<\/strong> \u5c06\u8bbe\u8ba1\u56fe\u7eb8\u4e0a\u7684\u70b9\u4f4d\u7cbe\u786e\u5730\u6807\u5b9a\u5230\u5b9e\u5730\uff0c\u6216\u63a7\u5236\u63a8\u571f\u673a\u3001\u5e73\u5730\u673a\u7b49\u8fdb\u884c\u81ea\u52a8\u5316\u9ad8\u7cbe\u5ea6\u4f5c\u4e1a\u3002<\/li>\n<li><strong>\u7cbe\u51c6\u519c\u4e1a\uff1a<\/strong> \u62d6\u62c9\u673a\u5728RTK\u5f15\u5bfc\u4e0b\u5b9e\u73b0\u81ea\u52a8\u9a7e\u9a76\uff0c\u8fdb\u884c\u5398\u7c73\u7ea7\u7684\u7cbe\u51c6\u64ad\u79cd\u3001\u65bd\u836f\u548c\u6536\u5272\uff0c\u6700\u5927\u5316\u571f\u5730\u5229\u7528\u7387\u3002<\/li>\n<li><strong>\u65e0\u4eba\u673a\u9ad8\u7cbe\u5ea6\u822a\u62cd\u4e0e\u5efa\u6a21\uff1a<\/strong> \u65e0\u4eba\u673a\u642d\u8f7dRTK\u6a21\u5757\uff0c\u53ef\u5b9e\u73b0\u514d\u50cf\u63a7\u70b9\u7684\u822a\u6d4b\uff0c\u5927\u5e45\u63d0\u5347\u4e09\u7ef4\u5efa\u6a21\u7684\u6548\u7387\u548c\u7cbe\u5ea6\u3002<\/li>\n<li><strong>\u81ea\u52a8\u9a7e\u9a76\u8f66\u8f86\u4e0e\u673a\u5668\u4eba\uff1a<\/strong> \u4e3a\u81ea\u52a8\u9a7e\u9a76\u6c7d\u8f66\u63d0\u4f9b\u7edd\u5bf9\u4f4d\u7f6e\u57fa\u51c6\uff0c\u662f\u5b9e\u73b0\u8f66\u9053\u7ea7\u5bfc\u822a\u548c\u9ad8\u7cbe\u5ea6\u5faa\u8ff9\u7684\u6838\u5fc3\u6280\u672f\u4e4b\u4e00\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4ec0\u4e48\u662f\u7cbe\u5bc6\u5355\u70b9\u5b9a\u4f4d (PPP - Precise Point Positioning)\uff1f<\/h3>\n<p>PPP\u662f\u4e00\u79cd\u4e0d\u4f9d\u8d56\u81ea\u5efa\u57fa\u51c6\u7ad9\uff0c\u5374\u540c\u6837\u80fd\u5b9e\u73b0\u9ad8\u7cbe\u5ea6\u5b9a\u4f4d\u7684\u5148\u8fdb\u6280\u672f\u3002\u5b83\u89e3\u51b3\u4e86RTK\u6280\u672f\u4f5c\u7528\u8ddd\u79bb\u6709\u9650\u3001\u9700\u8981\u57fa\u7ad9\u8986\u76d6\u7684\u5c40\u9650\u3002<\/p>\n<ul>\n<li><strong>\u6280\u672f\u539f\u7406\uff1a<\/strong> PPP\u6280\u672f\u7684\u6838\u5fc3\u5728\u4e8e\u201c\u7cbe\u5bc6\u4fee\u6b63\u201d\u3002\u5b83\u901a\u8fc7\u5355\u53f0\u63a5\u6536\u673a\uff0c\u63a5\u6536\u7531\u56fd\u9645GNSS\u670d\u52a1\uff08IGS\uff09\u7b49\u4e13\u4e1a\u673a\u6784\u901a\u8fc7\u4e92\u8054\u7f51\u53d1\u5e03\u7684\u7cbe\u5bc6\u536b\u661f\u8f68\u9053\u548c\u949f\u5dee\u4ea7\u54c1\u3002\u8fd9\u4e9b\u4ea7\u54c1\u7684\u7cbe\u5ea6\u8fdc\u9ad8\u4e8e\u536b\u661f\u5e7f\u64ad\u7684\u661f\u5386\u3002\u63a5\u6536\u673a\u5229\u7528\u8fd9\u4e9b\u7cbe\u5bc6\u4ea7\u54c1\uff0c\u7ed3\u5408\u590d\u6742\u7684\u6570\u5b66\u6a21\u578b\uff0c\u5bf9\u5305\u62ec\u5927\u6c14\u5ef6\u8fdf\u3001\u5730\u7403\u6f6e\u6c50\u3001\u5929\u7ebf\u76f8\u4f4d\u4e2d\u5fc3\u504f\u5dee\u5728\u5185\u7684\u591a\u79cd\u8bef\u5dee\u8fdb\u884c\u7cbe\u7ec6\u5316\u6539\u6b63\uff0c\u4ece\u800c\u901a\u8fc7\u5355\u70b9\u89e3\u7b97\u7684\u65b9\u5f0f\u83b7\u5f97\u9ad8\u7cbe\u5ea6\u5750\u6807\u3002<\/li>\n<li><strong>\u5b9a\u4f4d\u7cbe\u5ea6\uff1a<\/strong> \u9759\u6001\u89c2\u6d4b\u4e0b\u53ef\u8fbe\u5398\u7c73\u7ea7\uff0c\u52a8\u6001\u4e0b\u53ef\u8fbe\u5206\u7c73\u7ea7\u3002<\/li>\n<li><strong>\u6838\u5fc3\u7279\u70b9\uff1a<\/strong> \u5176\u6700\u5927\u4f18\u52bf\u662f\u5168\u7403\u8986\u76d6\uff0c\u7406\u8bba\u4e0a\u53ea\u8981\u80fd\u63a5\u6536\u5230\u536b\u661f\u4fe1\u53f7\u7684\u5730\u65b9\u5c31\u80fd\u4f5c\u4e1a\uff0c\u6446\u8131\u4e86\u5bf9\u57fa\u51c6\u7ad9\u7684\u4f9d\u8d56\u3002\u4f46\u5176\u4e3b\u8981\u7f3a\u70b9\u662f\u9700\u8981\u4e00\u4e2a\u201c\u6536\u655b\u201d\u8fc7\u7a0b\uff0c\u5373\u4ece\u5f00\u673a\u5230\u8fbe\u5230\u6700\u9ad8\u7cbe\u5ea6\uff0c\u901a\u5e38\u9700\u8981\u51e0\u5206\u949f\u5230\u534a\u5c0f\u65f6\u4e0d\u7b49\u7684\u65f6\u95f4\uff0c\u5b9e\u65f6\u6027\u76f8\u8f83\u4e8eRTK\u7a0d\u5dee\u3002<\/li>\n<li><strong>\u5b9e\u6218\u5e94\u7528\u6848\u4f8b\uff1a<\/strong>\n<ul>\n<li><strong>\u5168\u7403\u8303\u56f4\u7684\u79d1\u5b66\u7814\u7a76\uff1a<\/strong> \u5982\u5730\u58f3\u5f62\u53d8\u76d1\u6d4b\u3001\u677f\u5757\u8fd0\u52a8\u5206\u6790\u7b49\u3002<\/li>\n<li><strong>\u8fdc\u6d0b\u8239\u8236\u4e0e\u98de\u673a\u7684\u7cbe\u5bc6\u5bfc\u822a\uff1a<\/strong> \u5728\u8fdc\u79bb\u9646\u5730\u3001\u6ca1\u6709\u5dee\u5206\u4fe1\u53f7\u8986\u76d6\u7684\u5e7f\u9614\u533a\u57df\uff0cPPP\u662f\u5b9e\u73b0\u9ad8\u7cbe\u5ea6\u5bfc\u822a\u7684\u7406\u60f3\u9009\u62e9\u3002<\/li>\n<li><strong>\u6c14\u8c61\u5b66\u7814\u7a76\uff1a<\/strong> \u5229\u7528PPP\u89e3\u7b97\u8fc7\u7a0b\u4e2d\u5f97\u5230\u7684\u5927\u6c14\u5ef6\u8fdf\u53c2\u6570\uff0c\u53ef\u4ee5\u53cd\u6f14\u5927\u6c14\u4e2d\u7684\u6c34\u6c7d\u542b\u91cf\uff0c\u7528\u4e8e\u5929\u6c14\u9884\u62a5\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u4e00\u5f20\u56fe\u770b\u61c2\uff1a\u4e0d\u540cGPS\u5b9a\u4f4d\u6280\u672f\u7684\u6838\u5fc3\u5dee\u5f02\u5bf9\u6bd4<\/h2>\n<p>\u4e3a\u4e86\u66f4\u76f4\u89c2\u5730\u7406\u89e3\u4e0a\u8ff0\u51e0\u79cd\u6280\u672f\u7684\u5b9a\u4f4d\u4e0e\u53d6\u820d\uff0c\u4e0b\u8868\u4ece\u591a\u4e2a\u7ef4\u5ea6\u8fdb\u884c\u4e86\u68b3\u7406\u5bf9\u6bd4\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u6280\u672f\u7c7b\u578b<\/th>\n<th align=\"left\">\u5b9a\u4f4d\u7cbe\u5ea6<\/th>\n<th align=\"left\">\u6210\u672c<\/th>\n<th align=\"left\">\u521d\u59cb\u5316\u65f6\u95f4<\/th>\n<th align=\"left\">\u4f18\u70b9<\/th>\n<th align=\"left\">\u7f3a\u70b9<\/th>\n<th align=\"left\">\u5178\u578b\u5e94\u7528\u573a\u666f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\"><strong>\u5355\u70b9\u5b9a\u4f4d (SPS)<\/strong><\/td>\n<td align=\"left\">5-10\u7c73<\/td>\n<td align=\"left\">\u6781\u4f4e\uff08\u6d88\u8d39\u7ea7\u82af\u7247\uff09<\/td>\n<td align=\"left\">\u5feb\uff08\u70ed\u542f\u52a8\uff09\/\u6162\uff08\u51b7\u542f\u52a8\uff09<\/td>\n<td align=\"left\">\u7b80\u5355\u3001\u5ec9\u4ef7\u3001\u666e\u53ca<\/td>\n<td align=\"left\">\u7cbe\u5ea6\u4f4e<\/td>\n<td align=\"left\">\u624b\u673a\u5bfc\u822a\u3001\u8fd0\u52a8\u8bb0\u5f55<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u8f85\u52a9GPS (A-GPS)<\/strong><\/td>\n<td align=\"left\">5-10\u7c73<\/td>\n<td align=\"left\">\u6781\u4f4e\uff08\u4f9d\u8d56\u7f51\u7edc\uff09<\/td>\n<td align=\"left\">\u6781\u5feb<\/td>\n<td align=\"left\">\u542f\u52a8\u901f\u5ea6\u6781\u5feb<\/td>\n<td align=\"left\">\u5bf9\u7f51\u7edc\u6709\u4f9d\u8d56<\/td>\n<td align=\"left\">\u667a\u80fd\u624b\u673a\u3001\u7d27\u6025\u5b9a\u4f4d<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u5dee\u5206GPS (DGPS)<\/strong><\/td>\n<td align=\"left\">0.5-2\u7c73<\/td>\n<td align=\"left\">\u4e2d\u7b49\uff08\u9700\u5dee\u5206\u670d\u52a1\u6216\u8bbe\u5907\uff09<\/td>\n<td align=\"left\">\u5feb<\/td>\n<td align=\"left\">\u7cbe\u5ea6\u663e\u8457\u63d0\u5347\u3001\u6280\u672f\u6210\u719f<\/td>\n<td align=\"left\">\u4f5c\u7528\u8ddd\u79bb\u6709\u9650\uff08<100km\uff09<\/td>\n<td align=\"left\">\u8f66\u8f86\u76d1\u63a7\u3001\u6e2f\u53e3\u5bfc\u822a<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u5b9e\u65f6\u52a8\u6001\u5b9a\u4f4d (RTK)<\/strong><\/td>\n<td align=\"left\">1-2\u5398\u7c73<\/td>\n<td align=\"left\">\u9ad8\uff08\u4e13\u4e1a\u7ea7\u63a5\u6536\u673a+\u57fa\u7ad9\/CORS\u670d\u52a1\uff09<\/td>\n<td align=\"left\">\u5feb\uff08\u56fa\u5b9a\u89e3\uff09<\/td>\n<td align=\"left\">\u5b9e\u65f6\u5398\u7c73\u7ea7\u3001\u7cbe\u5ea6\u6700\u9ad8<\/td>\n<td align=\"left\">\u4f9d\u8d56\u6570\u636e\u94fe\u3001\u6210\u672c\u9ad8<\/td>\n<td align=\"left\">\u7cbe\u51c6\u6d4b\u7ed8\u3001\u81ea\u52a8\u9a7e\u9a76<\/td>\n<\/tr>\n<tr>\n<td align=\"left\"><strong>\u7cbe\u5bc6\u5355\u70b9\u5b9a\u4f4d (PPP)<\/strong><\/td>\n<td align=\"left\">2-20\u5398\u7c73<\/td>\n<td align=\"left\">\u8f83\u9ad8\uff08\u4e13\u4e1a\u7ea7\u63a5\u6536\u673a+\u7cbe\u5bc6\u4ea7\u54c1\u670d\u52a1\uff09<\/td>\n<td align=\"left\">\u6162\uff08\u9700\u6536\u655b\uff09<\/td>\n<td align=\"left\">\u65e0\u9700\u57fa\u51c6\u7ad9\u3001\u5168\u7403\u4f5c\u4e1a<\/td>\n<td align=\"left\">\u6536\u655b\u65f6\u95f4\u957f\u3001\u5b9e\u65f6\u6027\u7a0d\u5dee<\/td>\n<td align=\"left\">\u79d1\u7814\u3001\u8fdc\u6d0b\u5bfc\u822a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u8bca\u65ad\u5b9a\u4f4d\u8bef\u5dee\uff1a\u5f71\u54cdGPS\u7cbe\u5ea6\u7684\u5173\u952e\u56e0\u7d20\u6709\u54ea\u4e9b\uff1f<\/h2>\n<p>\u7406\u89e3\u5b9a\u4f4d\u6280\u672f\u7684\u539f\u7406\u540e\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u4ece\u6839\u6e90\u4e0a\u8ba4\u8bc6\u90a3\u4e9b\u5bfc\u81f4\u5b9a\u4f4d\u7ed3\u679c\u504f\u79bb\u771f\u5b9e\u503c\u7684\u56e0\u7d20\u3002\u8fd9\u4e9b\u8bef\u5dee\u53ef\u4ee5\u5f52\u7ed3\u4e3a\u51e0\u4e2a\u4e3b\u8981\u65b9\u9762\uff1a<\/p>\n<h3>\u536b\u661f\u76f8\u5173\u7684\u8bef\u5dee<\/h3>\n<ul>\n<li><strong>\u536b\u661f\u8f68\u9053\u8bef\u5dee\uff1a<\/strong> \u536b\u661f\u5e7f\u64ad\u7684\u81ea\u8eab\u4f4d\u7f6e\u662f\u57fa\u4e8e\u5730\u9762\u7ad9\u89c2\u6d4b\u7684\u9884\u62a5\u8f68\u9053\uff0c\u4e0e\u5176\u5b9e\u9645\u8fd0\u884c\u7684\u771f\u5b9e\u8f68\u9053\u5b58\u5728\u5fae\u5c0f\u504f\u5dee\u3002<\/li>\n<li><strong>\u536b\u661f\u65f6\u949f\u8bef\u5dee\uff1a<\/strong> \u5c3d\u7ba1\u536b\u661f\u642d\u8f7d\u4e86\u9ad8\u7cbe\u5ea6\u539f\u5b50\u949f\uff0c\u4f46\u5176\u4e0eGPS\u6807\u51c6\u65f6\u95f4\u4e4b\u95f4\u4ecd\u4f1a\u5b58\u5728\u7eb3\u79d2\u7ea7\u7684\u8bef\u5dee\uff0c\u800c\u65f6\u95f4\u4e0a\u7684\u5fae\u5c0f\u8bef\u5dee\u4f1a\u76f4\u63a5\u8f6c\u5316\u4e3a\u8ddd\u79bb\u4e0a\u7684\u663e\u8457\u8bef\u5dee\u3002<\/li>\n<\/ul>\n<h3>\u4fe1\u53f7\u4f20\u64ad\u8def\u5f84\u76f8\u5173\u7684\u8bef\u5dee<\/h3>\n<ul>\n<li><strong>\u7535\u79bb\u5c42\u5ef6\u8fdf\uff1a<\/strong> \u536b\u661f\u4fe1\u53f7\u5728\u7a7f\u8fc7\u8ddd\u79bb\u5730\u976250-1000\u516c\u91cc\u7684\u7535\u79bb\u5c42\u65f6\uff0c\u4f1a\u53d1\u751f\u6298\u5c04\uff0c\u5bfc\u81f4\u4f20\u64ad\u8def\u5f84\u53d8\u957f\u3002\u8fd9\u662f\u5bf9\u5355\u9891\u63a5\u6536\u673a\u5f71\u54cd\u6700\u5927\u7684\u8bef\u5dee\u6e90\u3002<\/li>\n<li><strong>\u5bf9\u6d41\u5c42\u5ef6\u8fdf\uff1a<\/strong> \u4fe1\u53f7\u5728\u7a7f\u8fc7\u8fd1\u5730\u9762\u7684\u5bf9\u6d41\u5c42\u65f6\uff0c\u540c\u6837\u4f1a\u56e0\u5927\u6c14\u5bc6\u5ea6\u548c\u6e7f\u5ea6\u7684\u53d8\u5316\u800c\u4ea7\u751f\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u591a\u8def\u5f84\u6548\u5e94\uff1a<\/strong> \u5728\u57ce\u5e02\u3001\u5ce1\u8c37\u7b49\u73af\u5883\u4e2d\uff0c\u536b\u661f\u4fe1\u53f7\u88ab\u5efa\u7b51\u7269\u7b49\u8868\u9762\u53cd\u5c04\u540e\u624d\u8fdb\u5165\u63a5\u6536\u673a\u5929\u7ebf\uff0c\u8fd9\u4e9b\u201c\u7ed5\u4e86\u8fdc\u8def\u201d\u7684\u4fe1\u53f7\u4f1a\u4e0e\u76f4\u63a5\u5230\u8fbe\u7684\u4fe1\u53f7\u6df7\u6dc6\uff0c\u9020\u6210\u6d4b\u8ddd\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h3>\u63a5\u6536\u673a\u76f8\u5173\u7684\u8bef\u5dee<\/h3>\n<ul>\n<li><strong>\u63a5\u6536\u673a\u5185\u90e8\u566a\u58f0\uff1a<\/strong> \u63a5\u6536\u673a\u786c\u4ef6\u672c\u8eab\u4ea7\u751f\u7684\u7535\u5b50\u566a\u58f0\u4f1a\u5f71\u54cd\u5bf9\u4fe1\u53f7\u7684\u7cbe\u786e\u6d4b\u91cf\u3002<\/li>\n<li><strong>\u5929\u7ebf\u76f8\u4f4d\u4e2d\u5fc3\u504f\u5dee\uff1a<\/strong> \u5929\u7ebf\u7684\u7269\u7406\u4e2d\u5fc3\u4e0e\u5176\u63a5\u6536\u4fe1\u53f7\u7684\u7535\u5b50\u4e2d\u5fc3\uff08\u76f8\u4f4d\u4e2d\u5fc3\uff09\u5e76\u4e0d\u5b8c\u5168\u91cd\u5408\uff0c\u4e14\u4f1a\u968f\u4fe1\u53f7\u5165\u5c04\u65b9\u5411\u53d8\u5316\uff0c\u5f15\u5165\u8bef\u5dee\u3002<\/li>\n<\/ul>\n<h3>\u73af\u5883\u4e0e\u51e0\u4f55\u7ed3\u6784\u56e0\u7d20<\/h3>\n<ul>\n<li><strong>\u536b\u661f\u51e0\u4f55\u5206\u5e03\uff08DOP\u503c\uff09\uff1a<\/strong> \u53c2\u4e0e\u5b9a\u4f4d\u89e3\u7b97\u7684\u536b\u661f\u5728\u5929\u7a7a\u4e2d\u7684\u5206\u5e03\u7ed3\u6784\u4f1a\u663e\u8457\u5f71\u54cd\u5b9a\u4f4d\u7cbe\u5ea6\u3002\u5982\u679c\u536b\u661f\u5747\u5300\u5206\u5e03\u5728\u5929\u7a7a\u56db\u5468\uff0c\u5219\u5b9a\u4f4d\u7cbe\u5ea6\u9ad8\uff08DOP\u503c\u5c0f\uff09\uff1b\u53cd\u4e4b\uff0c\u82e5\u536b\u661f\u96c6\u4e2d\u5728\u4e00\u4e2a\u5c0f\u533a\u57df\uff0c\u5219\u7cbe\u5ea6\u5dee\uff08DOP\u503c\u5927\uff09\u3002<\/li>\n<li><strong>\u5468\u56f4\u73af\u5883\u906e\u6321\uff1a<\/strong> \u9ad8\u697c\u3001\u6811\u6728\u7b49\u5bf9\u536b\u661f\u4fe1\u53f7\u7684\u906e\u6321\uff0c\u4f1a\u51cf\u5c11\u53ef\u89c1\u536b\u661f\u6570\u91cf\uff0c\u6076\u5316\u536b\u661f\u51e0\u4f55\u5206\u5e03\uff0c\u4ece\u800c\u964d\u4f4e\u5b9a\u4f4d\u7cbe\u5ea6\u3002<\/li>\n<\/ul>\n<h2>\u5173\u4e8eGPS\u5b9e\u65f6\u5b9a\u4f4d\u7684\u5e38\u89c1\u95ee\u9898 (FAQ)<\/h2>\n<h3>Q1: GNSS\u548cGPS\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h3>\n<p>GPS\uff08Global Positioning System\uff09\u7279\u6307\u7531\u7f8e\u56fd\u5f00\u53d1\u7684\u5168\u7403\u5b9a\u4f4d\u7cfb\u7edf\uff0c\u5b83\u662f\u6700\u65e9\u6295\u5165\u4f7f\u7528\u3001\u4e5f\u662f\u76ee\u524d\u6700\u5e7f\u4e3a\u4eba\u77e5\u7684\u7cfb\u7edf\u3002\u800cGNSS\uff08Global Navigation Satellite System\uff09\u5219\u662f\u4e00\u4e2a\u66f4\u5bbd\u6cdb\u7684\u672f\u8bed\uff0c\u6cdb\u6307\u6240\u6709\u7684\u5168\u7403\u5bfc\u822a\u536b\u661f\u7cfb\u7edf\u3002\u5b83\u9664\u4e86\u5305\u542b\u7f8e\u56fd\u7684GPS\uff0c\u8fd8\u5305\u62ec\u4e2d\u56fd\u7684\u5317\u6597\uff08BDS\uff09\u3001\u4fc4\u7f57\u65af\u7684GLONASS\u3001\u6b27\u76df\u7684Galileo\u7b49\u3002\u73b0\u4ee3\u7684\u5b9a\u4f4d\u63a5\u6536\u673a\u901a\u5e38\u90fd\u662f\u591a\u6a21GNSS\u63a5\u6536\u673a\uff0c\u80fd\u591f\u540c\u65f6\u63a5\u6536\u548c\u5904\u7406\u6765\u81ea\u591a\u4e2a\u4e0d\u540c\u7cfb\u7edf\u7684\u536b\u661f\u4fe1\u53f7\uff0c\u8fd9\u6781\u5927\u5730\u589e\u52a0\u4e86\u53ef\u89c1\u536b\u661f\u6570\u91cf\uff0c\u4ece\u800c\u63d0\u5347\u4e86\u5b9a\u4f4d\u7684\u53ef\u9760\u6027\u3001\u53ef\u7528\u6027\u548c\u7cbe\u5ea6\u3002<\/p>\n<h3>Q2: 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