{"id":615,"date":"2025-12-10T16:31:42","date_gmt":"2025-12-10T08:31:42","guid":{"rendered":"https:\/\/hsiang.cc\/?p=615"},"modified":"2025-12-03T16:39:39","modified_gmt":"2025-12-03T08:39:39","slug":"gnss%e7%ad%86%e8%a8%98%e8%a1%9b%e6%98%9f%e5%b9%be%e4%bd%95%e5%a6%82%e4%bd%95%e5%bd%b1%e9%9f%bf%e7%b2%be%e5%ba%a6%ef%bc%9f%e9%97%9c%e9%8d%b5%e6%98%af-dop-%e5%80%bc","status":"publish","type":"post","link":"https:\/\/hsiang.cc\/?p=615","title":{"rendered":"[GNSS\u7b46\u8a18]\u885b\u661f\u5e7e\u4f55\u5982\u4f55\u5f71\u97ff\u7cbe\u5ea6\uff1f\u95dc\u9375\u662f DOP \u503c"},"content":{"rendered":"

\u5728 GNSS \u5b9a\u4f4d\u4e2d,\u6709\u4e00\u500b\u5e38\u88ab\u5ffd\u7565\u4f46\u6975\u5176\u91cd\u8981\u7684\u6307\u6a19\uff1aDOP \u503c<\/strong>\u3002\u5f88\u591a\u4eba\u4ee5\u70ba\u300c\u885b\u661f\u8d8a\u591a,\u5b9a\u4f4d\u8d8a\u6e96\u300d,\u4f46\u5be6\u969b\u4e0a,\u885b\u661f\u7684\u5e7e\u4f55\u5206\u5e03\u6bd4\u6578\u91cf\u66f4\u91cd\u8981<\/strong>\u3002<\/p>\n

\u6211\u5728\u958b\u767c GNSS \u61c9\u7528\u7684\u65e9\u671f,\u66fe\u7d93\u56f0\u60d1\u70ba\u4ec0\u9ebc\u6709\u6642\u5019\u5728\u53f0\u5317\u5e02\u5340\u770b\u5230 10 \u9846\u885b\u661f,\u5b9a\u4f4d\u537b\u5728 20-30 \u516c\u5c3a\u7bc4\u570d\u8df3\u52d5\uff1b\u800c\u5728\u967d\u660e\u5c71\u7a7a\u66e0\u8655\u53ea\u6709 6 \u9846\u885b\u661f,\u7cbe\u5ea6\u53cd\u800c\u9054\u5230 3-5 \u516c\u5c3a\u3002\u5f8c\u4f86\u624d\u7406\u89e3,\u95dc\u9375\u5c31\u5728\u65bc DOP \u503c<\/strong>\u2014\u2014\u885b\u661f\u5e7e\u4f55\u5c0d\u7cbe\u5ea6\u7684\u300c\u653e\u5927\u6548\u61c9\u300d\u3002<\/p>\n

\u4eca\u5929\u5c31\u4f86\u6df1\u5165\u89e3\u6790 DOP \u7684\u539f\u7406\u3001\u5224\u8b80\u6a19\u6e96,\u4ee5\u53ca\u5982\u4f55\u5728\u5be6\u52d9\u4e2d\u61c9\u7528\u3002<\/p>\n

<\/p>\n

\n

\u4e00\u3001\u4ec0\u9ebc\u662f DOP\uff1f<\/h2>\n

DOP<\/strong>\uff08Dilution of Precision\uff09\u4e2d\u6587\u53eb\u505a\u300c\u7cbe\u5ea6\u7a00\u91cb\u56e0\u5b50\u300d\u6216\u300c\u7cbe\u5ea6\u8870\u6e1b\u56e0\u5b50\u300d,\u662f\u4e00\u500b\u63cf\u8ff0\u885b\u661f\u5e7e\u4f55\u5206\u5e03\u5982\u4f55\u5f71\u97ff\u5b9a\u4f4d\u7cbe\u5ea6<\/strong>\u7684\u6307\u6a19\u3002<\/p>\n

\u6838\u5fc3\u6982\u5ff5<\/h3>\n

GNSS \u5b9a\u4f4d\u7684\u8aa4\u5dee\u4f86\u81ea\u5169\u500b\u90e8\u5206\uff1a<\/p>\n

$ \\text{\u5b9a\u4f4d\u8aa4\u5dee} = \\text{DOP} \\times \\text{\u6e2c\u8ddd\u8aa4\u5dee} $<\/p>\n

    \n
  • \u6e2c\u8ddd\u8aa4\u5dee\uff08UERE\uff09<\/strong>\uff1a\u6e2c\u91cf\u5230\u885b\u661f\u8ddd\u96e2\u7684\u8aa4\u5dee\uff08\u53d7\u8a0a\u865f\u54c1\u8cea\u3001\u96fb\u96e2\u5c64\u7b49\u5f71\u97ff\uff09<\/li>\n
  • DOP<\/strong>\uff1a\u885b\u661f\u5e7e\u4f55\u9020\u6210\u7684\u300c\u653e\u5927\u500d\u6578\u300d<\/li>\n<\/ul>\n

    \u95dc\u9375\u7406\u89e3<\/strong>\uff1a
    \n- DOP \u662f\u7121\u55ae\u4f4d\u7684\u500d\u6578<\/strong>
    \n- DOP \u8d8a\u5c0f,\u885b\u661f\u5e7e\u4f55\u8d8a\u597d,\u5b9a\u4f4d\u7cbe\u5ea6\u8d8a\u9ad8
    \n- DOP \u8d8a\u5927,\u885b\u661f\u5e7e\u4f55\u8d8a\u5dee,\u6e2c\u8ddd\u8aa4\u5dee\u88ab\u300c\u653e\u5927\u300d<\/p>\n

    \u70ba\u4ec0\u9ebc\u53eb\u300c\u7a00\u91cb\u300d\uff1f<\/h3>\n

    \u60f3\u50cf\u4f60\u5728\u8abf\u679c\u6c41\uff1a
    \n- \u539f\u6c41<\/strong>\uff1a\u6e2c\u8ddd\u8aa4\u5dee\uff08\u57fa\u672c\u8aa4\u5dee\uff09
    \n- \u52a0\u6c34<\/strong>\uff1aDOP\uff08\u7a00\u91cb\u500d\u6578\uff09
    \n- \u7a00\u91cb\u5f8c\u7684\u679c\u6c41<\/strong>\uff1a\u5b9a\u4f4d\u8aa4\u5dee\uff08\u6700\u7d42\u8aa4\u5dee\uff09<\/p>\n

    DOP \u5c31\u50cf\u662f\u300c\u7a00\u91cb\u500d\u6578\u300d,\u628a\u539f\u672c\u7684\u6e2c\u8ddd\u8aa4\u5dee\u300c\u653e\u5927\u300d\u6210\u6700\u7d42\u7684\u5b9a\u4f4d\u8aa4\u5dee\u3002<\/p>\n

    \n

    \u4e8c\u3001DOP \u7684\u76f4\u89ba\u7406\u89e3<\/h2>\n

    \u8996\u89ba\u5316\uff1a\u4ea4\u6703\u89d2\u5ea6\u7684\u5f71\u97ff<\/h3>\n

    \u60f3\u50cf\u4f60\u8981\u7528\u5169\u689d\u7dda\u78ba\u5b9a\u4e00\u500b\u9ede\u7684\u4f4d\u7f6e\uff1a<\/p>\n

    \u60c5\u6cc1 A\uff1a\u4ea4\u6703\u89d2\u63a5\u8fd1 90\u00b0\uff08\u7406\u60f3\uff09<\/strong><\/p>\n

        \u885b\u661f 1\n      |\n      |\n      \u25cf \u63a5\u6536\u6a5f\n     \/\n    \/\n\u885b\u661f 2\n\n\u4ea4\u6703\u89d2\u5927 \u2192 \u4f4d\u7f6e\u78ba\u5b9a \u2192 DOP \u5c0f\n<\/code><\/pre>\n
    \u60c5\u6cc1 B\uff1a\u4ea4\u6703\u89d2\u5f88\u5c0f\uff08\u4e0d\u7406\u60f3\uff09<\/strong><\/p>\n
    \u885b\u661f 1  \u885b\u661f 2\n    \\   \/\n     \\ \/\n      \u25cf \u63a5\u6536\u6a5f\n\n\u4ea4\u6703\u89d2\u5c0f \u2192 \u4f4d\u7f6e\u6a21\u7cca \u2192 DOP \u5927\n<\/code><\/pre>\n
    3D \u7a7a\u9593\u7684\u885b\u661f\u5206\u5e03<\/h3>\n
    \u7406\u60f3\u5206\u5e03\uff08DOP \u4f4e\uff09<\/strong>\uff1a
    \n- \u885b\u661f\u5747\u52fb\u5206\u5e03\u5728\u5929\u7a7a\u5404\u500b\u65b9\u5411
    \n- \u6709\u9ad8\u4ef0\u89d2\u885b\u661f\uff08\u5929\u9802\u9644\u8fd1\uff09
    \n- \u6709\u4f4e\u4ef0\u89d2\u885b\u661f\uff08\u5730\u5e73\u7dda\u9644\u8fd1\uff09
    \n- \u65b9\u4f4d\u89d2\u5206\u6563<\/p>\n
    \u4e0d\u7406\u60f3\u5206\u5e03\uff08DOP \u9ad8\uff09<\/strong>\uff1a
    \n- \u885b\u661f\u805a\u96c6\u5728\u67d0\u500b\u65b9\u5411
    \n- \u5168\u90e8\u662f\u4f4e\u4ef0\u89d2\u6216\u5168\u90e8\u662f\u9ad8\u4ef0\u89d2
    \n- \u65b9\u4f4d\u89d2\u96c6\u4e2d<\/p>\n
    \n  \ud83d\udca1 \u5be6\u52d9\u7d93\u9a57\uff1a<\/strong> \u5728\u53f0\u5317\u4fe1\u7fa9\u5340\u6e2c\u8a66\u6642,\u96d6\u7136\u770b\u5230 10 \u9846\u885b\u661f,\u4f46\u56e0\u70ba\u9ad8\u6a13\u906e\u853d,\u885b\u661f\u90fd\u96c6\u4e2d\u5728\u5929\u9802\u9644\u8fd1\uff08\u4ef0\u89d2 > 60\u00b0\uff09,HDOP \u9ad8\u9054 3.5\u3002\u76f8\u6bd4\u4e4b\u4e0b,\u967d\u660e\u5c71\u7a7a\u66e0\u8655\u96d6\u7136\u53ea\u6709 6 \u9846\u885b\u661f,\u4f46\u5206\u5e03\u5747\u52fb\uff08\u4ef0\u89d2 15\u00b0-75\u00b0,\u65b9\u4f4d\u89d2\u5206\u6563\uff09,HDOP \u53ea\u6709 0.8\u3002\u9019\u5c31\u662f\u70ba\u4ec0\u9ebc\u885b\u661f\u6578\u91cf\u4e0d\u7b49\u65bc\u5b9a\u4f4d\u7cbe\u5ea6<\/strong>\u3002\n<\/p><\/blockquote>\n
    \n
    \u4e09\u3001DOP \u5bb6\u65cf\u8a73\u89e3<\/h2>\n
    DOP \u6709\u591a\u7a2e\u985e\u578b,\u5206\u5225\u63cf\u8ff0\u4e0d\u540c\u7dad\u5ea6\u7684\u7cbe\u5ea6\uff1a<\/p>\n
    GDOP\uff08Geometric DOP\uff09- \u5e7e\u4f55\u7cbe\u5ea6\u56e0\u5b50<\/strong><\/h3>\n
    \u5b9a\u7fa9<\/strong>\uff1a\u5305\u542b 3D \u4f4d\u7f6e\uff08X, Y, Z\uff09+ \u6642\u9593\uff08T\uff09\u7684\u7d9c\u5408\u7cbe\u5ea6\u56e0\u5b50<\/p>\n
    $ \\text{GDOP}^2 = \\text{PDOP}^2 + \\text{TDOP}^2 $<\/p>\n
    \u7279\u9ede<\/strong>\uff1a
    \n- \u6700\u5168\u9762\u7684 DOP \u6307\u6a19
    \n- \u5305\u542b\u6240\u6709\u56db\u500b\u7dad\u5ea6
    \n- \u8f03\u5c11\u5728\u5be6\u52d9\u4e2d\u4f7f\u7528\uff08\u56e0\u70ba\u592a\u7d9c\u5408\uff09<\/p>\n
    PDOP\uff08Position DOP\uff09- \u4f4d\u7f6e\u7cbe\u5ea6\u56e0\u5b50<\/strong><\/h3>\n
    \u5b9a\u7fa9<\/strong>\uff1a\u53ea\u8003\u616e 3D \u4f4d\u7f6e\uff08X, Y, Z\uff09\u7684\u7cbe\u5ea6\u56e0\u5b50<\/p>\n
    $ \\text{PDOP}^2 = \\text{HDOP}^2 + \\text{VDOP}^2 $<\/p>\n
    \u7279\u9ede<\/strong>\uff1a
    \n- \u6700\u5e38\u7528\u7684 DOP \u6307\u6a19<\/strong>
    \n- \u53cd\u6620 3D \u5b9a\u4f4d\u7684\u5e7e\u4f55\u54c1\u8cea
    \n- \u6e2c\u91cf\u61c9\u7528\u901a\u5e38\u8981\u6c42 PDOP < 3<\/p>\n
    \u61c9\u7528<\/strong>\uff1a
    \n- \u6e2c\u91cf\u8207\u6e2c\u7e6a
    \n- \u7cbe\u6e96\u8fb2\u696d
    \n- \u7121\u4eba\u6a5f\u5c0e\u822a<\/p>\n
    HDOP\uff08Horizontal DOP\uff09- \u6c34\u5e73\u7cbe\u5ea6\u56e0\u5b50<\/strong><\/h3>\n
    \u5b9a\u7fa9<\/strong>\uff1a\u53ea\u8003\u616e\u6c34\u5e73\u9762\uff08X, Y\uff09\u7684\u7cbe\u5ea6\u56e0\u5b50,\u4e5f\u5c31\u662f\u7d93\u7def\u5ea6\u7684\u7cbe\u5ea6<\/p>\n
    \u7279\u9ede<\/strong>\uff1a
    \n- \u5c0e\u822a\u61c9\u7528\u6700\u91cd\u8981\u7684\u6307\u6a19<\/strong>
    \n- \u901a\u5e38\u6bd4 VDOP \u5c0f\uff08\u6c34\u5e73\u65b9\u5411\u885b\u661f\u5206\u5e03\u8f03\u597d\uff09
    \n- \u8eca\u7528\u5c0e\u822a\u3001\u624b\u6a5f\u5b9a\u4f4d\u4e3b\u8981\u770b HDOP<\/p>\n
    \u61c9\u7528<\/strong>\uff1a
    \n- \u8eca\u7528\u5c0e\u822a
    \n- \u624b\u6a5f\u5b9a\u4f4d
    \n- \u8239\u8236\u5c0e\u822a
    \n- \u4efb\u4f55\u4e3b\u8981\u95dc\u5fc3\u6c34\u5e73\u4f4d\u7f6e\u7684\u61c9\u7528<\/p>\n
    VDOP\uff08Vertical DOP\uff09- \u5782\u76f4\u7cbe\u5ea6\u56e0\u5b50<\/strong><\/h3>\n
    \u5b9a\u7fa9<\/strong>\uff1a\u53ea\u8003\u616e\u5782\u76f4\u65b9\u5411\uff08Z\uff09\u7684\u7cbe\u5ea6\u56e0\u5b50,\u4e5f\u5c31\u662f\u9ad8\u5ea6\u7684\u7cbe\u5ea6<\/p>\n
    \u7279\u9ede<\/strong>\uff1a
    \n- \u901a\u5e38\u6bd4 HDOP \u5927 1.5-2 \u500d<\/strong>
    \n- \u9ad8\u5ea6\u7cbe\u5ea6\u5929\u751f\u8f03\u5dee\uff08\u885b\u661f\u90fd\u5728\u4e0a\u65b9\uff09
    \n- \u767b\u5c71\u3001\u822a\u7a7a\u61c9\u7528\u9700\u8981\u95dc\u6ce8<\/p>\n
    \u70ba\u4ec0\u9ebc VDOP \u901a\u5e38\u8f03\u5927\uff1f<\/strong><\/p>\n
    \u885b\u661f\u5206\u5e03\u793a\u610f\uff1a\n\n        \u25cf \u25cf \u25cf  \u2190 \u885b\u661f\u90fd\u5728\u4e0a\u65b9\n       \u25cf \u25cf \u25cf \u25cf\n      -----------  \u2190 \u5730\u5e73\u7dda\n         \u25b2\n      \u63a5\u6536\u6a5f\n\n\u6c34\u5e73\u65b9\u5411\uff1a\u885b\u661f\u5206\u5e03 360\u00b0\n\u5782\u76f4\u65b9\u5411\uff1a\u885b\u661f\u53ea\u5728\u4e0a\u534a\u7403\uff080-90\u00b0\uff09\n\n\u2192 \u5782\u76f4\u65b9\u5411\u5e7e\u4f55\u8f03\u5dee \u2192 VDOP > HDOP\n<\/code><\/pre>\n
    TDOP\uff08Time DOP\uff09- \u6642\u9593\u7cbe\u5ea6\u56e0\u5b50<\/strong><\/h3>\n
    \u5b9a\u7fa9<\/strong>\uff1a\u6642\u9418\u8aa4\u5dee\u7684\u7cbe\u5ea6\u56e0\u5b50<\/p>\n
    \u7279\u9ede<\/strong>\uff1a
    \n- \u8f03\u5c11\u986f\u793a\u5728\u63a5\u6536\u6a5f\u8f38\u51fa
    \n- \u5c0d\u6388\u6642\u61c9\u7528\u91cd\u8981
    \n- \u901a\u5e38\u4e0d\u662f\u4e3b\u8981\u95dc\u6ce8\u9ede<\/p>\n
    \u6578\u5b78\u95dc\u4fc2\u7e3d\u7d50<\/strong><\/h3>\n
    GDOP\u00b2  =  PDOP\u00b2  +  TDOP\u00b2\n          \u2193\n       HDOP\u00b2  +  VDOP\u00b2\n\n\u5b8c\u6574\u95dc\u4fc2\uff1a\nGDOP\u00b2 = HDOP\u00b2 + VDOP\u00b2 + TDOP\u00b2\n<\/code><\/pre>\n
    \u7bc4\u4f8b\u9a57\u8b49<\/strong>\uff1a<\/p>\n
    NMEA \u8f38\u51fa\uff1a$GPGSA,A,3,...,2.5,1.3,2.1*39\n                        \u2191   \u2191   \u2191\n                      PDOP HDOP VDOP\n\n\u9a57\u8b49\uff1aPDOP\u00b2 = HDOP\u00b2 + VDOP\u00b2\n     2.5\u00b2  = 1.3\u00b2  + 2.1\u00b2\n     6.25  = 1.69  + 4.41\n     6.25  \u2248 6.1  \u2713\uff08\u56db\u6368\u4e94\u5165\u8aa4\u5dee\uff09\n<\/code><\/pre>\n
    \n
    \u56db\u3001DOP \u503c\u5224\u8b80\u6a19\u6e96<\/h2>\n
    \u6a19\u6e96\u8a55\u7d1a\u8868<\/h3>\n\n\n\n\n\n\n\n\n\n\n
    DOP \u503c<\/th>\n\u8a55\u7d1a<\/th>\n\u885b\u661f\u5e7e\u4f55<\/th>\n\u5b9a\u4f4d\u7cbe\u5ea6\u4f30\u8a08<\/th>\n\u61c9\u7528\u5efa\u8b70<\/th>\n<\/tr>\n<\/thead>\n
    < 1<\/strong><\/td>\n\u7406\u60f3<\/td>\n\u6975\u4f73<\/td>\n\u6975\u5c11\u9054\u5230<\/td>\n\u5be6\u969b\u5f88\u5c11\u898b<\/td>\n<\/tr>\n
    1-2<\/strong><\/td>\n\u512a\u79c0<\/td>\n\u5f88\u597d<\/td>\n\u8aa4\u5dee < 5 \u516c\u5c3a<\/td>\n\u6240\u6709\u61c9\u7528 \u2705<\/td>\n<\/tr>\n
    2-5<\/strong><\/td>\n\u826f\u597d<\/td>\n\u597d<\/td>\n\u8aa4\u5dee 5-15 \u516c\u5c3a<\/td>\n\u4e00\u822c\u5c0e\u822a \u2705<\/td>\n<\/tr>\n
    5-10<\/strong><\/td>\n\u4e2d\u7b49<\/td>\n\u666e\u901a<\/td>\n\u8aa4\u5dee 15-50 \u516c\u5c3a<\/td>\n\u7c97\u7565\u5b9a\u4f4d \u26a0\ufe0f<\/td>\n<\/tr>\n
    10-20<\/strong><\/td>\n\u5dee<\/td>\n\u4e0d\u4f73<\/td>\n\u8aa4\u5dee > 50 \u516c\u5c3a<\/td>\n\u4e0d\u5efa\u8b70\u4f7f\u7528 \u274c<\/td>\n<\/tr>\n
    > 20<\/strong><\/td>\n\u6975\u5dee<\/td>\n\u5f88\u5dee<\/td>\n\u4e0d\u53ef\u7528<\/td>\n\u7121\u6cd5\u5b9a\u4f4d \u274c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \u5be6\u969b\u7cbe\u5ea6\u4f30\u8a08<\/h3>\n
    \u5b9a\u4f4d\u8aa4\u5dee = DOP \u00d7 \u6e2c\u8ddd\u8aa4\u5dee\uff08UERE\uff09<\/p>\n
    \u4e0d\u540c\u74b0\u5883\u7684\u6e2c\u8ddd\u8aa4\u5dee<\/strong>\uff1a<\/p>\n\n\n\n\n\n\n\n\n
    \u74b0\u5883<\/th>\n\u6e2c\u8ddd\u8aa4\u5dee\uff08UERE\uff09<\/th>\n\u8aaa\u660e<\/th>\n<\/tr>\n<\/thead>\n
    \u7406\u60f3\u74b0\u5883<\/strong><\/td>\n1-2 \u516c\u5c3a<\/td>\n\u7a7a\u66e0\u3001\u9ad8 C\/N0\u3001\u96d9\u983b\u4fee\u6b63<\/td>\n<\/tr>\n
    \u4e00\u822c\u74b0\u5883<\/strong><\/td>\n3-5 \u516c\u5c3a<\/td>\n\u6236\u5916\u3001\u55ae\u983b<\/td>\n<\/tr>\n
    \u90fd\u5e02\u74b0\u5883<\/strong><\/td>\n5-10 \u516c\u5c3a<\/td>\n\u591a\u8def\u5f91\u6548\u61c9<\/td>\n<\/tr>\n
    \u60e1\u52a3\u74b0\u5883<\/strong><\/td>\n> 10 \u516c\u5c3a<\/td>\n\u56b4\u91cd\u906e\u853d\u3001\u5e72\u64fe<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \u8a08\u7b97\u7bc4\u4f8b<\/strong>\uff1a<\/p>\n
    \u5834\u666f 1\uff1a\u967d\u660e\u5c71\uff08\u7a7a\u66e0\uff09<\/strong><\/p>\n
    HDOP = 0.8\n\u6e2c\u8ddd\u8aa4\u5dee = 3 \u516c\u5c3a\uff08\u4e00\u822c\u74b0\u5883\uff09\n\u6c34\u5e73\u7cbe\u5ea6 \u2248 0.8 \u00d7 3 = 2.4 \u516c\u5c3a \u2705\n<\/code><\/pre>\n
    \u5834\u666f 2\uff1a\u4fe1\u7fa9\u5340\uff08\u90fd\u5e02\u5cfd\u8c37\uff09<\/strong><\/p>\n
    HDOP = 3.5\n\u6e2c\u8ddd\u8aa4\u5dee = 8 \u516c\u5c3a\uff08\u591a\u8def\u5f91\u56b4\u91cd\uff09\n\u6c34\u5e73\u7cbe\u5ea6 \u2248 3.5 \u00d7 8 = 28 \u516c\u5c3a \u274c\n<\/code><\/pre>\n
    \u5834\u666f 3\uff1a\u9ad8\u901f\u516c\u8def\uff08\u826f\u597d\uff09<\/strong><\/p>\n
    HDOP = 1.2\n\u6e2c\u8ddd\u8aa4\u5dee = 4 \u516c\u5c3a\n\u6c34\u5e73\u7cbe\u5ea6 \u2248 1.2 \u00d7 4 = 4.8 \u516c\u5c3a \u2705\n<\/code><\/pre>\n
    \n
    \u4e94\u3001\u5f71\u97ff DOP \u7684\u56e0\u7d20<\/h2>\n
    1. \u885b\u661f\u6578\u91cf<\/strong><\/h3>\n
    \u8ff7\u601d<\/strong>\uff1a\u885b\u661f\u8d8a\u591a,DOP \u8d8a\u5c0f\uff1f<\/p>\n
    \u771f\u76f8<\/strong>\uff1a\u4e0d\u4e00\u5b9a\uff01<\/p>\n
    \u5834\u666f A\uff1a10 \u9846\u885b\u661f,\u5168\u90e8\u5728\u5929\u9802\u9644\u8fd1\n\u2192 HDOP = 4.5\uff08\u5dee\uff09\n\n\u5834\u666f B\uff1a6 \u9846\u885b\u661f,\u5747\u52fb\u5206\u5e03\n\u2192 HDOP = 0.9\uff08\u512a\u79c0\uff09\n<\/code><\/pre>\n
    \u95dc\u9375<\/strong>\uff1a\u5206\u5e03\u6bd4\u6578\u91cf\u66f4\u91cd\u8981<\/p>\n
    2. \u885b\u661f\u5206\u5e03<\/strong><\/h3>\n
    \u7406\u60f3\u914d\u7f6e<\/strong>\uff1a
    \n- 1 \u9846\u5728\u5929\u9802\uff08\u4ef0\u89d2 > 70\u00b0\uff09
    \n- 3-4 \u9846\u5728\u4e2d\u7b49\u4ef0\u89d2\uff0830-60\u00b0\uff09
    \n- \u65b9\u4f4d\u89d2\u5747\u52fb\u5206\u5e03\uff080\u00b0, 90\u00b0, 180\u00b0, 270\u00b0\uff09<\/p>\n
    \u6700\u5dee\u914d\u7f6e<\/strong>\uff1a
    \n- \u5168\u90e8\u805a\u96c6\u5728\u67d0\u500b\u65b9\u5411
    \n- \u5168\u90e8\u662f\u4f4e\u4ef0\u89d2\uff08< 15\u00b0\uff09\u6216\u5168\u90e8\u662f\u9ad8\u4ef0\u89d2\uff08> 75\u00b0\uff09
    \n- \u65b9\u4f4d\u89d2\u96c6\u4e2d<\/p>\n
    3. \u906e\u853d\u7269<\/strong><\/h3>\n
    \u5e38\u898b\u906e\u853d<\/strong>\uff1a
    \n- \u5efa\u7bc9\u7269<\/strong>\uff1a\u90fd\u5e02\u5cfd\u8c37,\u906e\u853d\u4f4e\u4ef0\u89d2\u885b\u661f
    \n- \u5c71\u8c37<\/strong>\uff1a\u5169\u5074\u5c71\u58c1\u906e\u853d
    \n- \u6a39\u6728<\/strong>\uff1a\u68ee\u6797\u4e2d,\u906e\u853d\u5927\u90e8\u5206\u5929\u7a7a
    \n- \u8eca\u5167<\/strong>\uff1a\u8eca\u9802\u906e\u853d,\u53ea\u80fd\u770b\u5230\u524d\u64cb\u98a8\u73bb\u7483\u65b9\u5411<\/p>\n
    \u5f71\u97ff<\/strong>\uff1a
    \n- \u6e1b\u5c11\u53ef\u898b\u885b\u661f\u6578\u91cf
    \n- \u6539\u8b8a\u885b\u661f\u5206\u5e03
    \n- DOP \u503c\u5347\u9ad8<\/p>\n
    4. \u885b\u661f\u4ef0\u89d2\u906e\u7f69<\/strong><\/h3>\n
    \u4ef0\u89d2\u906e\u7f69\uff08Elevation Mask\uff09<\/strong>\uff1a\u63a5\u6536\u6a5f\u8a2d\u5b9a\u7684\u6700\u4f4e\u4ef0\u89d2\u9580\u6abb<\/p>\n
    \u70ba\u4ec0\u9ebc\u8981\u8a2d\u5b9a\uff1f<\/strong>
    \n- \u4f4e\u4ef0\u89d2\u885b\u661f\u8a0a\u865f\u54c1\u8cea\u5dee
    \n- \u7a7f\u904e\u66f4\u539a\u7684\u5927\u6c23\u5c64
    \n- \u591a\u8def\u5f91\u6548\u61c9\u56b4\u91cd<\/p>\n
    \u5e38\u898b\u8a2d\u5b9a<\/strong>\uff1a
    \n- 5\u00b0<\/strong>\uff1a\u9810\u8a2d\u503c,\u63a5\u6536\u6700\u591a\u885b\u661f
    \n- 10\u00b0<\/strong>\uff1a\u5e73\u8861\u54c1\u8cea\u8207\u6578\u91cf
    \n- 15\u00b0<\/strong>\uff1a\u9ad8\u54c1\u8cea\u61c9\u7528\uff08\u6e2c\u91cf\uff09
    \n- 20\u00b0<\/strong>\uff1a\u6975\u9ad8\u54c1\u8cea\u8981\u6c42<\/p>\n
    \u5f71\u97ff<\/strong>\uff1a
    \n- \u63d0\u9ad8\u9580\u6abb \u2192 \u885b\u661f\u6578\u91cf\u6e1b\u5c11 \u2192 DOP \u53ef\u80fd\u5347\u9ad8
    \n- \u4f46\u6392\u9664\u4f4e\u54c1\u8cea\u885b\u661f \u2192 \u6e2c\u8ddd\u8aa4\u5dee\u964d\u4f4e
    \n- \u9700\u8981\u6b0a\u8861<\/p>\n
    \n
    \u516d\u3001\u5be6\u52d9\u6848\u4f8b\u5206\u6790<\/h2>\n
    \u6848\u4f8b 1\uff1a\u53f0\u5317\u4fe1\u7fa9\u5340\uff08\u90fd\u5e02\u5cfd\u8c37\uff09<\/strong><\/h3>\n
    \u74b0\u5883<\/strong>\uff1a
    \n- \u9ad8\u6a13\u6797\u7acb,\u8857\u9053\u5bec\u7d04 20 \u516c\u5c3a
    \n- \u5efa\u7bc9\u7269\u9ad8\u5ea6 50-100 \u516c\u5c3a
    \n- \u5929\u7a7a\u53ef\u898b\u7bc4\u570d\u53d7\u9650<\/p>\n
    \u89c0\u6e2c\u7d50\u679c<\/strong>\uff1a<\/p>\n
    \u53ef\u898b\u885b\u661f\uff1a10 \u9846\n\u4f7f\u7528\u885b\u661f\uff1a8 \u9846\nHDOP\uff1a3.5\nVDOP\uff1a5.2\nPDOP\uff1a6.3\n\n\u5b9a\u4f4d\u7d50\u679c\uff1a\n- \u6c34\u5e73\u8aa4\u5dee\uff1a20-30 \u516c\u5c3a\n- \u4f4d\u7f6e\u8df3\u52d5\u660e\u986f\n- \u9ad8\u5ea6\u8aa4\u5dee\uff1a> 50 \u516c\u5c3a\n<\/code><\/pre>\n
    \u5206\u6790<\/strong>\uff1a
    \n- \u4f4e\u4ef0\u89d2\u885b\u661f\u88ab\u5efa\u7bc9\u7269\u906e\u853d
    \n- \u5269\u9918\u885b\u661f\u96c6\u4e2d\u5728\u5929\u9802\u9644\u8fd1
    \n- \u885b\u661f\u5e7e\u4f55\u5dee \u2192 DOP \u9ad8
    \n- \u591a\u8def\u5f91\u6548\u61c9\u56b4\u91cd \u2192 \u6e2c\u8ddd\u8aa4\u5dee\u5927
    \n- \u96d9\u91cd\u6253\u64ca\uff1aDOP \u9ad8 + UERE \u5927<\/strong><\/p>\n
    \u6848\u4f8b 2\uff1a\u967d\u660e\u5c71\uff08\u7a7a\u66e0\u74b0\u5883\uff09<\/strong><\/h3>\n
    \u74b0\u5883<\/strong>\uff1a
    \n- \u958b\u95ca\u5c71\u9802,360\u00b0 \u7121\u906e\u853d
    \n- \u5730\u5e73\u7dda\u6e05\u6670\u53ef\u898b
    \n- \u9060\u96e2\u5efa\u7bc9\u7269<\/p>\n
    \u89c0\u6e2c\u7d50\u679c<\/strong>\uff1a<\/p>\n
    \u53ef\u898b\u885b\u661f\uff1a12 \u9846\n\u4f7f\u7528\u885b\u661f\uff1a6 \u9846\uff08\u4ef0\u89d2 > 15\u00b0\uff09\nHDOP\uff1a0.8\nVDOP\uff1a1.4\nPDOP\uff1a1.6\n\n\u5b9a\u4f4d\u7d50\u679c\uff1a\n- \u6c34\u5e73\u8aa4\u5dee\uff1a3-5 \u516c\u5c3a\n- \u4f4d\u7f6e\u7a69\u5b9a\n- \u9ad8\u5ea6\u8aa4\u5dee\uff1a5-8 \u516c\u5c3a\n<\/code><\/pre>\n
    \u5206\u6790<\/strong>\uff1a
    \n- \u885b\u661f\u5206\u5e03\u5747\u52fb
    \n- \u4ef0\u89d2\u5f9e 15\u00b0 \u5230 85\u00b0
    \n- \u65b9\u4f4d\u89d2\u5206\u6563
    \n- \u885b\u661f\u5e7e\u4f55\u512a\u79c0 \u2192 DOP \u4f4e
    \n- \u7121\u591a\u8def\u5f91 \u2192 \u6e2c\u8ddd\u8aa4\u5dee\u5c0f
    \n- \u96d9\u91cd\u512a\u52e2\uff1aDOP \u4f4e + UERE \u5c0f<\/strong><\/p>\n
    \u6848\u4f8b 3\uff1a\u96a7\u9053\u51fa\u53e3\uff08\u52d5\u614b\u8b8a\u5316\uff09<\/strong><\/h3>\n
    \u74b0\u5883<\/strong>\uff1a
    \n- \u5f9e\u5b8c\u5168\u906e\u853d\u5230\u958b\u95ca
    \n- DOP \u5feb\u901f\u8b8a\u5316<\/p>\n
    \u89c0\u6e2c\u7d50\u679c<\/strong>\uff1a<\/p>\n
    \u96a7\u9053\u5167\uff1a\n- \u885b\u661f\uff1a0 \u9846\n- \u7121\u5b9a\u4f4d\n\n\u525b\u51fa\u96a7\u9053\uff080-5 \u79d2\uff09\uff1a\n- \u885b\u661f\uff1a2-3 \u9846\n- HDOP\uff1a> 10\n- \u5b9a\u4f4d\u4e0d\u53ef\u7528\n\n\u51fa\u96a7\u9053\u5f8c\uff085-15 \u79d2\uff09\uff1a\n- \u885b\u661f\uff1a\u9010\u6f38\u589e\u52a0\u5230 6-8 \u9846\n- HDOP\uff1a\u5f9e 8 \u964d\u5230 2\n- \u5b9a\u4f4d\u9010\u6f38\u7a69\u5b9a\n\n\u5b8c\u5168\u958b\u95ca\uff08> 15 \u79d2\uff09\uff1a\n- \u885b\u661f\uff1a8-10 \u9846\n- HDOP\uff1a1.2\n- \u5b9a\u4f4d\u6b63\u5e38\n<\/code><\/pre>\n
    \u8655\u7406\u7b56\u7565<\/strong>\uff1a
    \n- \u76e3\u63a7 DOP \u8b8a\u5316
    \n- DOP > 5 \u6642\u4e0d\u4f7f\u7528\u5b9a\u4f4d
    \n- \u4f7f\u7528\u6163\u6027\u5c0e\u822a\u8f14\u52a9
    \n- \u5361\u723e\u66fc\u6ffe\u6ce2\u5e73\u6ed1\u904e\u6e21<\/p>\n
    \n  \ud83d\udca1 \u5be6\u52d9\u7d93\u9a57\uff1a<\/strong> \u5728\u958b\u767c\u8eca\u7528\u5c0e\u822a\u7cfb\u7d71\u6642,\u6211\u5011\u767c\u73fe\u96a7\u9053\u51fa\u53e3\u7684\u5b9a\u4f4d\u6700\u5bb9\u6613\u51fa\u554f\u984c\u3002\u4e00\u958b\u59cb\u53ea\u6aa2\u67e5\u885b\u661f\u6578\u91cf\uff08\u2265 4 \u9846\u5c31\u4f7f\u7528\uff09,\u7d50\u679c\u5b9a\u4f4d\u6703\u300c\u8df3\u300d\u5230\u932f\u8aa4\u4f4d\u7f6e\u3002\u5f8c\u4f86\u52a0\u5165 HDOP \u9580\u6abb\uff08< 5\uff09,\u4e26\u5728 DOP \u904e\u9ad8\u6642\u5ef6\u9577\u4f7f\u7528\u6163\u6027\u5c0e\u822a,\u554f\u984c\u5927\u5e45\u6539\u5584\u3002DOP \u662f\u52d5\u614b\u7684,\u9700\u8981\u6301\u7e8c\u76e3\u63a7<\/strong>\u3002\n<\/p><\/blockquote>\n
    \n
    \u4e03\u3001\u5982\u4f55\u6539\u5584 DOP<\/h2>\n
    1. \u4f7f\u7528\u591a GNSS \u7cfb\u7d71<\/strong><\/h3>\n
    \u55ae\u7cfb\u7d71 vs \u591a\u7cfb\u7d71<\/strong>\uff1a<\/p>\n
    \u53ea\u7528 GPS\uff1a\n- \u53ef\u898b\u885b\u661f\uff1a6-10 \u9846\n- HDOP\uff1a1.5-3.0\n\nGPS + GLONASS + Galileo + BeiDou\uff1a\n- \u53ef\u898b\u885b\u661f\uff1a15-25 \u9846\n- HDOP\uff1a0.8-1.5\n- \u6539\u5584\uff1a30-50%\n<\/code><\/pre>\n
    \u512a\u52e2<\/strong>\uff1a
    \n- \u66f4\u591a\u885b\u661f \u2192 \u66f4\u597d\u7684\u5206\u5e03
    \n- \u5373\u4f7f\u90e8\u5206\u7cfb\u7d71\u885b\u661f\u88ab\u906e\u853d,\u4ecd\u6709\u5176\u4ed6\u7cfb\u7d71
    \n- DOP \u503c\u660e\u986f\u964d\u4f4e<\/p>\n
    2. \u9078\u64c7\u89c0\u6e2c\u6642\u6bb5<\/strong><\/h3>\n
    \u898f\u5283\u6700\u4f73\u6642\u9593<\/strong>\uff1a
    \n- \u4f7f\u7528\u885b\u661f\u9810\u5831\u8edf\u9ad4
    \n- \u67e5\u770b DOP \u9810\u6e2c
    \n- \u9078\u64c7 DOP \u6700\u4f4e\u7684\u6642\u6bb5<\/p>\n
    \u7bc4\u4f8b<\/strong>\uff1a<\/p>\n
    \u6e2c\u91cf\u4efb\u52d9\u898f\u5283\uff1a\n- \u4e0a\u5348 9:00-10:00\uff1aHDOP 1.2-1.5 \u2705\n- \u4e2d\u5348 12:00-13:00\uff1aHDOP 2.5-3.0 \u26a0\ufe0f\n- \u4e0b\u5348 15:00-16:00\uff1aHDOP 1.0-1.3 \u2705\n\n\u9078\u64c7\uff1a\u4e0a\u5348\u6216\u4e0b\u5348\u9032\u884c\u6e2c\u91cf\n<\/code><\/pre>\n
    3. \u6539\u5584\u5929\u7dda\u4f4d\u7f6e<\/strong><\/h3>\n
    \u539f\u5247<\/strong>\uff1a
    \n- \u76e1\u91cf\u907f\u514d\u906e\u853d
    \n- \u63d0\u9ad8\u5929\u7dda\u9ad8\u5ea6
    \n- \u9060\u96e2\u53cd\u5c04\u9762<\/p>\n
    \u5be6\u52d9\u5efa\u8b70<\/strong>\uff1a
    \n- \u8eca\u8f09\u5929\u7dda\uff1a\u5b89\u88dd\u5728\u8eca\u9802\u4e2d\u592e
    \n- \u56fa\u5b9a\u7ad9\uff1a\u9078\u64c7\u958b\u95ca\u4f4d\u7f6e,\u67b6\u8a2d\u5929\u7dda\u6746
    \n- \u624b\u6301\u8a2d\u5099\uff1a\u907f\u514d\u8eab\u9ad4\u906e\u853d<\/p>\n
    4. \u8abf\u6574\u4ef0\u89d2\u906e\u7f69<\/strong><\/h3>\n
    \u6b0a\u8861<\/strong>\uff1a<\/p>\n
    \u4f4e\u4ef0\u89d2\u906e\u7f69\uff085\u00b0\uff09\uff1a\n- \u512a\u9ede\uff1a\u66f4\u591a\u885b\u661f,DOP \u8f03\u4f4e\n- \u7f3a\u9ede\uff1a\u4f4e\u4ef0\u89d2\u885b\u661f\u54c1\u8cea\u5dee\n\n\u9ad8\u4ef0\u89d2\u906e\u7f69\uff0815\u00b0\uff09\uff1a\n- \u512a\u9ede\uff1a\u885b\u661f\u54c1\u8cea\u597d,\u6e2c\u8ddd\u8aa4\u5dee\u5c0f\n- \u7f3a\u9ede\uff1a\u885b\u661f\u6578\u91cf\u5c11,DOP \u53ef\u80fd\u5347\u9ad8\n\n\u5efa\u8b70\uff1a\n- \u7a7a\u66e0\u74b0\u5883\uff1a10-15\u00b0\n- \u90fd\u5e02\u74b0\u5883\uff1a5-10\u00b0\n- \u6e2c\u91cf\u61c9\u7528\uff1a15\u00b0\n<\/code><\/pre>\n
    5. \u4f7f\u7528\u8f14\u52a9\u7cfb\u7d71<\/strong><\/h3>\n
    SBAS\uff08\u661f\u57fa\u589e\u5f37\u7cfb\u7d71\uff09<\/strong>\uff1a
    \n- \u63d0\u4f9b\u4fee\u6b63\u8cc7\u8a0a
    \n- \u964d\u4f4e\u6e2c\u8ddd\u8aa4\u5dee
    \n- \u4e0d\u6539\u5584 DOP,\u4f46\u6539\u5584\u6574\u9ad4\u7cbe\u5ea6<\/p>\n
    RTK\uff08\u5373\u6642\u52d5\u614b\u5b9a\u4f4d\uff09<\/strong>\uff1a
    \n- \u516c\u5206\u7d1a\u7cbe\u5ea6
    \n- \u5c0d DOP \u8981\u6c42\u8f03\u9ad8\uff08\u901a\u5e38 < 3\uff09
    \n- \u9700\u8981\u57fa\u7ad9<\/p>\n
    \n
    \u516b\u3001DOP \u5728\u4e0d\u540c\u61c9\u7528\u7684\u91cd\u8981\u6027<\/h2>\n
    \u5c0e\u822a\u61c9\u7528<\/strong><\/h3>\n
    \u95dc\u6ce8\u6307\u6a19<\/strong>\uff1aHDOP<\/p>\n
    \u53ef\u63a5\u53d7\u7bc4\u570d<\/strong>\uff1a
    \n- \u8eca\u7528\u5c0e\u822a\uff1aHDOP < 5
    \n- \u8239\u8236\u5c0e\u822a\uff1aHDOP < 3
    \n- \u822a\u7a7a\u5c0e\u822a\uff1aHDOP < 2<\/p>\n
    \u539f\u56e0<\/strong>\uff1a\u4e3b\u8981\u95dc\u5fc3\u6c34\u5e73\u4f4d\u7f6e<\/p>\n
    \u6e2c\u91cf\u61c9\u7528<\/strong><\/h3>\n
    \u95dc\u6ce8\u6307\u6a19<\/strong>\uff1aPDOP<\/p>\n
    \u8981\u6c42\u6a19\u6e96<\/strong>\uff1a
    \n- \u4e00\u822c\u6e2c\u91cf\uff1aPDOP < 5
    \n- \u7cbe\u5bc6\u6e2c\u91cf\uff1aPDOP < 3
    \n- RTK \u6e2c\u91cf\uff1aPDOP < 2<\/p>\n
    \u539f\u56e0<\/strong>\uff1a\u9700\u8981\u9ad8\u7cbe\u5ea6 3D \u4f4d\u7f6e<\/p>\n
    \u6388\u6642\u61c9\u7528<\/strong><\/h3>\n
    \u95dc\u6ce8\u6307\u6a19<\/strong>\uff1aTDOP\uff08\u8f03\u5c11\u986f\u793a\uff09<\/p>\n
    \u8981\u6c42<\/strong>\uff1a
    \n- \u885b\u661f\u5206\u5e03\u826f\u597d
    \n- \u901a\u5e38 GDOP < 3<\/p>\n
    \u539f\u56e0<\/strong>\uff1a\u6642\u9418\u540c\u6b65\u7cbe\u5ea6\u8981\u6c42\u9ad8<\/p>\n
    GIS \u8cc7\u6599\u63a1\u96c6<\/strong><\/h3>\n
    \u95dc\u6ce8\u6307\u6a19<\/strong>\uff1aHDOP, PDOP<\/p>\n
    \u8981\u6c42<\/strong>\uff1a
    \n- \u4f4d\u7f6e\u63a1\u96c6\uff1aHDOP < 5
    \n- \u9ad8\u7a0b\u63a1\u96c6\uff1aPDOP < 5<\/p>\n
    \n
    \u4e5d\u3001\u7e3d\u7d50<\/h2>\n
    \u2705 \u95dc\u9375\u8981\u9ede<\/h3>\n
      \n
    1. DOP \u662f\u7121\u55ae\u4f4d\u7684\u500d\u6578<\/strong>,\u4e0d\u662f\u8aa4\u5dee\u672c\u8eab<\/li>\n
    2. \u885b\u661f\u5e7e\u4f55\u6bd4\u6578\u91cf\u66f4\u91cd\u8981<\/strong><\/li>\n
    3. \u5b9a\u4f4d\u8aa4\u5dee = DOP \u00d7 \u6e2c\u8ddd\u8aa4\u5dee<\/strong><\/li>\n
    4. HDOP \u6700\u5e38\u7528<\/strong>\uff08\u5c0e\u822a\u61c9\u7528\uff09<\/li>\n
    5. PDOP \u6700\u5168\u9762<\/strong>\uff08\u6e2c\u91cf\u61c9\u7528\uff09<\/li>\n
    6. VDOP \u901a\u5e38\u6bd4 HDOP \u5927<\/strong>\uff08\u5782\u76f4\u5e7e\u4f55\u8f03\u5dee\uff09<\/li>\n
    7. \u591a GNSS \u80fd\u6709\u6548\u964d\u4f4e DOP<\/strong><\/li>\n<\/ol>\n
      \ud83d\udcca \u5feb\u901f\u53c3\u8003<\/h3>\n\n\n\n\n\n\n\n\n\n
      DOP \u985e\u578b<\/th>\n\u5305\u542b\u7dad\u5ea6<\/th>\n\u4e3b\u8981\u61c9\u7528<\/th>\n\u7406\u60f3\u503c<\/th>\n<\/tr>\n<\/thead>\n
      GDOP<\/strong><\/td>\nX, Y, Z, T<\/td>\n\u7d9c\u5408\u8a55\u4f30<\/td>\n< 5<\/td>\n<\/tr>\n
      PDOP<\/strong><\/td>\nX, Y, Z<\/td>\n\u6e2c\u91cf<\/td>\n< 3<\/td>\n<\/tr>\n
      HDOP<\/strong><\/td>\nX, Y<\/td>\n\u5c0e\u822a<\/td>\n< 2<\/td>\n<\/tr>\n
      VDOP<\/strong><\/td>\nZ<\/td>\n\u9ad8\u7a0b<\/td>\n< 3<\/td>\n<\/tr>\n
      TDOP<\/strong><\/td>\nT<\/td>\n\u6388\u6642<\/td>\n< 3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \ud83c\udfaf \u5be6\u52d9\u5efa\u8b70<\/h3>\n
      \u8a55\u4f30\u5b9a\u4f4d\u54c1\u8cea\u6642<\/strong>\uff1a
      \n1. \u5148\u770b HDOP\uff08\u5c0e\u822a\uff09\u6216 PDOP\uff08\u6e2c\u91cf\uff09
      \n2. \u6aa2\u67e5\u885b\u661f\u6578\u91cf\uff08\u2265 4 \u9846\uff09
      \n3. \u89c0\u5bdf C\/N0\uff08\u8a0a\u865f\u54c1\u8cea\uff09
      \n4. \u7d9c\u5408\u5224\u65b7<\/p>\n
      \u6539\u5584 DOP \u7684\u65b9\u6cd5<\/strong>\uff1a
      \n1. \u555f\u7528\u591a GNSS \u7cfb\u7d71
      \n2. \u9078\u64c7\u958b\u95ca\u74b0\u5883
      \n3. \u898f\u5283\u6700\u4f73\u89c0\u6e2c\u6642\u6bb5
      \n4. \u8abf\u6574\u4ef0\u89d2\u906e\u7f69<\/p>\n
      \u8a18\u4f4f<\/strong>\uff1a<\/p>\n
      \n  DOP \u544a\u8a34\u4f60\u885b\u661f\u5e7e\u4f55\u6709\u591a\u597d,\u4f46\u4e0d\u544a\u8a34\u4f60\u6700\u7d42\u7cbe\u5ea6\u3002\u6700\u7d42\u7cbe\u5ea6 = DOP \u00d7 \u6e2c\u8ddd\u8aa4\u5dee,\u5169\u8005\u90fd\u8981\u8003\u616e\u3002<\/strong>\n<\/p><\/blockquote>\n
      \ud83d\udcac \u8a0e\u8ad6<\/h3>\n
      \u4f60\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u9047\u904e DOP \u76f8\u95dc\u7684\u554f\u984c\u55ce\uff1f\u6b61\u8fce\u7559\u8a00\u5206\u4eab\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5728 GNSS \u5b9a\u4f4d\u4e2d,\u6709\u4e00\u500b\u5e38\u88ab\u5ffd\u7565\u4f46\u6975\u5176\u91cd\u8981\u7684\u6307\u6a19\uff1aDOP \u503c\u3002\u5f88\u591a\u4eba\u4ee5\u70ba\u300c\u885b … \u95b1\u8b80\u5168\u6587 →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[396],"tags":[640,643,99,68,645,644,647,646,642,651,648,649,641,650],"class_list":["post-615","post","type-post","status-publish","format-standard","hentry","category-tech","tag-dop","tag-gdop","tag-gnss","tag-gps","tag-hdop","tag-pdop","tag-tdop","tag-vdop","tag-642","tag-651","tag-648","tag-649","tag-641","tag-650"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts\/615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=615"}],"version-history":[{"count":2,"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts\/615\/revisions"}],"predecessor-version":[{"id":617,"href":"https:\/\/hsiang.cc\/index.php?rest_route=\/wp\/v2\/posts\/615\/revisions\/617"}],"wp:attachment":[{"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hsiang.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}