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file - 使用 RTKLib 处理 GLONASS 数据时出现问题

转载 作者:行者123 更新时间:2023-12-05 04:14:54 26 4
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我目前正在尝试处理来自 uBlox 接收器的一些 RAWX 格式数据,以仅使用 GLONASS 数据计算精确位置。使用最新版本的 RTKLib,我成功地为流动站数据创建了一个 .obs 文件,其中仅包含来自 GLONASS 卫星的原始计时数据。

我使用的是来自军械测量局的基站观测数据,其中包含 GLONASS 观测数据。但是,我似乎无法在 RINEX .n 文件中找到 GLONASS 卫星的星历表数据。

我从 http://cddis.gsfc.nasa.gov/Data_and_Derived_Products/GNSS/broadcast_ephemeris_data.html 下载了星历表数据,但这似乎不起作用,当我运行 rnx2rtkp 并使用此处的星历表数据与我的流动站和基站数据相结合时,结果是一个带有标题但没有计算位置的文件。

是否有可靠的 GLONASS 星历数据来源?还是您认为运行 rnx2rtkp 后出现空文件的问题出在其他地方?

使用的流动站 .obs 文件示例:

         2.11           OBSERVATION DATA    M (MIXED)           RINEX VERSION / TYPE
CONVBIN 2.4.2 20151103 124700 UTC PGM / RUN BY / DATE
log: ./example-raw-files/move_8t_open_2.ubx COMMENT
format: u-blox COMMENT
MARKER NAME
MARKER NUMBER
OBSERVER / AGENCY
REC # / TYPE / VERS
ANT # / TYPE
0.0000 0.0000 0.0000 APPROX POSITION XYZ
0.0000 0.0000 0.0000 ANTENNA: DELTA H/E/N
1 1 WAVELENGTH FACT L1/2
4 C1 L1 C2 L2 # / TYPES OF OBSERV
2015 10 18 14 29 57.0001660 GPS TIME OF FIRST OBS
2015 10 18 14 31 48.0001660 GPS TIME OF LAST OBS
END OF HEADER
15 10 18 14 29 57.0001660 0 7R 2R18R 1R24R 3R10R 9
19056340.595 101688288.003
20456342.222 109197298.083
21472771.747 114784298.522
22602776.418 120867227.872
21531288.261 115258699.757
23149996.728
24006237.266 128191924.241
15 10 18 14 29 58.0001660 0 7R 2R18R 1R24R 3R10R 9
19056198.116 101687528.005
20455687.529 109193802.134
21473303.889 114787143.115
22603448.334 120870822.141
21530504.061
23149729.173
24006561.864 128193661.999
15 10 18 14 29 59.0001660 0 7R 2R18R 1R24R 3R10R 9
19056055.746 101686766.803
20455032.245 109190304.363
21473836.223 114789986.801
22604120.342 120874416.557
21529722.719 115250328.3173
23149464.647 123399672.5182
24006892.415 128195398.326
15 10 18 14 30 0.0001660 0 7R 2R18R 1R24R 3R10R 9
19055913.199 101686007.061
20454376.416 109186808.225
21474368.852 114792830.975
22604792.481 120878010.252
21528935.003 115246142.6322
23149200.632 123398265.7823
24007214.118 128197136.108

使用的基站 .obs 文件示例:

     2.11           OBSERVATION DATA    M (MIXED)           RINEX VERSION / TYPE
teqc 2013Mar15 20151018 16:08:01UTCPGM / RUN BY / DATE
Linux2.6.32-279.el6.x86_64|x86_64|gcc|Win64-MinGW64|= COMMENT
TPP 3.8.0 18-OCT-15 13:59 COMMENT
The APPROX POSITION XYZ coordinates are NOT APPROXIMATE COMMENT
APPROX POSITION XYZ replaced with ETRS89 station coords COMMENT
COMMENT
STRA MARKER NAME
Stratford MARKER NUMBER
OS Net Ordnance Survey OBSERVER / AGENCY
5302K56524 TRIMBLE NETR9 5.01 REC # / TYPE / VERS
30436573 TRM55971.00 NONE ANT # / TYPE
3974813.0408 661.0574 4971513.6274 APPROX POSITION XYZ
0.0000 0.0000 0.0000 ANTENNA: DELTA H/E/N
1 1 WAVELENGTH FACT L1/2
14 C1 P1 L1 D1 S1 C2 P2 L2 D2# / TYPES OF OBSERV
S2 C5 L5 D5 S5 # / TYPES OF OBSERV
30.0000 INTERVAL
0 RCV CLOCK OFFS APPL
17 LEAP SECONDS
Forced Modulo Decimation to 30 seconds COMMENT
2015 10 18 14 0 0.0000000 GPS TIME OF FIRST OBS
END OF HEADER
15 10 18 14 0 0.0000000 0 19G01G03G04G08G11G14G17G19G23G28G31G32
R01R02R03R09R10R18R24
20180757.438 106050661.061 7 49.700
20180764.938 82636982.767 9 43.200
20180763.324 79193776.328 9 54.700
20828922.820 109456879.989 7 47.300
20828929.609 85291188.678 8 40.400
20828930.973 81737408.712 9 53.700
20984973.547 110276794.074 7 49.200
20984978.281 85930067.781 8 38.800

23759403.547 124856355.955 6 42.400
23759413.504 97290747.902 6 23.000
23759413.980 93236966.578 9 44.900
20463251.977 107535262.028 7 50.800
20463256.078 83793693.296 8 40.000

23581631.273 123922415.590 5 40.500
23581637.781 96562996.519 6 22.600

23028052.273 121013265.584 6 45.900
23028058.363 94296074.902 8 34.500

21221326.406 111518773.953 7 48.600
21221330.051 86897841.898 8 40.200

24670831.742 129646153.107 5 40.900
24670839.879 101023039.675 6 21.700

23654508.750 124305349.413 6 43.800
23654514.102 96861295.041 6 25.300

25302107.750 132963469.966 3 35.200


20224880.313 106282567.307 7 49.400
20224885.035 82817687.926 8 40.100

20471495.016 20471493.355 109432451.662 8 51.000
20471499.797 20471500.152 85113834.399 8 40.600

19388043.594 19388042.391 103458712.558 8 51.700
19388047.516 19388047.449 80467801.253 9 47.300

22901519.039 22901518.742 122594071.205 6 42.300
22901528.422 22901527.504 95350710.061 8 40.000

23493632.766 23493631.383 125454651.909 6 41.500
23493637.723

23723380.070 23723378.582 126458813.713 5 39.700
23723388.762 23723387.586 98357002.949 8 33.800

21638628.500 21638627.305 115508486.132 7 48.300
21638633.754 21638634.063 89839936.201 9 43.300

21344462.984 21344461.762 114138445.687 5 41.000
21344469.105 21344468.637 88774370.937 8 39.300

15 10 18 14 0 30.0000000 0 19G01G03G04G08G11G14G17G19G23G28G31G32
R01R02R03R09R10R18R24
20182485.414 106059740.872 7 49.100
20182492.691 82644057.945 9 43.500
20182491.426 79200556.710 9 54.800
20818845.320 109403922.438 7 47.800

来自 http://cddis.gsfc.nasa.gov/Data_and_Derived_Products/GNSS/broadcast_ephemeris_data.html 的示例星历数据:

         2              NAVIGATION DATA                         RINEX VERSION / TYPE
CCRINEXN V1.6.0 UX CDDIS 19-OCT-15 17:31 PGM / RUN BY / DATE
IGS BROADCAST EPHEMERIS FILE COMMENT
0.1583D-07 0.0000D+00 -0.1192D-06 0.0000D+00 ION ALPHA
0.1106D+06 0.0000D+00 -0.2621D+06 0.6554D+05 ION BETA
-0.186264514923D-08-0.710542735760D-14 147456 1867 DELTA-UTC: A0,A1,T,W
17 LEAP SECONDS
END OF HEADER
1 15 10 18 0 0 0.0 0.258162617683D-05 0.795807864051D-12 0.000000000000D+00
0.830000000000D+02 0.312500000000D+01 0.469305261319D-08 0.283487930010D+00
0.210478901863D-06 0.475879025180D-02 0.712089240551D-05 0.515365367127D+04
0.000000000000D+00 0.707805156708D-07 0.172698137717D+01 0.558793544769D-07
0.962625218850D+00 0.244968750000D+03 0.491006304726D+00-0.811319544880D-08
0.360372148789D-09 0.100000000000D+01 0.186700000000D+04 0.000000000000D+00
0.200000000000D+01 0.000000000000D+00 0.512227416039D-08 0.830000000000D+02
0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
2 15 10 18 0 0 0.0 0.593069475144D-03 0.125055521494D-11 0.000000000000D+00
0.320000000000D+02 0.170312500000D+02 0.522414600468D-08 0.864108924348D+00
0.817701220512D-06 0.148657076061D-01 0.710412859917D-05 0.515364379501D+04
0.000000000000D+00-0.225380063057D-06 0.168627558652D+01 0.931322574615D-07
0.941300472669D+00 0.233062500000D+03-0.222396368177D+01-0.857642845631D-08
0.228938104585D-09 0.100000000000D+01 0.186700000000D+04 0.000000000000D+00
0.200000000000D+01 0.000000000000D+00-0.204890966415D-07 0.320000000000D+02
0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
3 15 10 18 0 0 0.0 0.196569599211D-04-0.159161572810D-11 0.000000000000D+00
0.330000000000D+02-0.159062500000D+02 0.488806062293D-08 0.250572505977D+01
-0.774860382080D-06 0.479422858916D-03 0.726245343685D-05 0.515357558060D+04
0.000000000000D+00-0.260770320892D-07 0.276796515213D+01-0.186264514923D-08
0.959536023018D+00 0.240750000000D+03-0.278869512117D+01-0.813998202176D-08
-0.213223161349D-09 0.100000000000D+01 0.186700000000D+04 0.000000000000D+00
0.200000000000D+01 0.000000000000D+00 0.186264514923D-08 0.330000000000D+02
0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
4 15 10 18 0 0 0.0-0.337180681527D-04-0.511590769747D-11 0.000000000000D+00
0.940000000000D+02 0.721875000000D+01 0.524878984720D-08 0.903745526686D-01
0.325962901115D-06 0.119663784280D-01 0.713206827640D-05 0.515363929558D+04
0.000000000000D+00-0.931322574615D-07 0.170137330633D+01 0.147148966789D-06
0.940394961488D+00 0.235625000000D+03 0.111195399936D+01-0.852785486671D-08
0.370015407203D-09 0.100000000000D+01 0.186700000000D+04 0.000000000000D+00
0.200000000000D+01 0.000000000000D+00-0.651925802231D-08 0.940000000000D+02
0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00
5 15 10 18 0 0 0.0-0.184040516615D-03 0.386535248253D-11 0.000000000000D+00
0.620000000000D+02-0.204062500000D+02 0.510628428429D-08-0.297571076922D+01
-0.107660889625D-05 0.447066326160D-02 0.761076807976D-05 0.515366045570D+04
0.000000000000D+00-0.912696123123D-07 0.275904508375D+01-0.782310962677D-07
0.946689739988D+00 0.228156250000D+03 0.444670396318D+00-0.819534129448D-08
-0.270368394340D-09 0.100000000000D+01 0.186700000000D+04 0.000000000000D+00
0.200000000000D+01 0.000000000000D+00-0.107102096081D-07 0.620000000000D+02
0.000000000000D+00 0.000000000000D+00 0.000000000000D+00 0.000000000000D+00

最佳答案

原来我误解了我使用的星历文件。根据RINEX standard , GLONASS 星历文件表示为 .[yy]g,因此,当我使用 .[yy]n 时,它包含 GPS 星历数据而不是 GLONASS。

我的错误是认为 .n 是任何 GNSS 星历表数据的标准扩展名,而不仅仅是 GPS。

GLONASS 星历数据很容易从 NASA 的/[yy]g 子目录中获得任何给定日期的数据,例如 ftp://cddis.gsfc.nasa.gov/gnss/data/daily/2015/317/15g/

关于file - 使用 RTKLib 处理 GLONASS 数据时出现问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33629232/

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