Changeset 7294 in ntrip
- Timestamp:
- Sep 22, 2015, 4:04:07 PM (9 years ago)
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trunk/BNC/src/bnchelp.html
r7285 r7294 944 944 </ul> 945 945 </p> 946 <p> 947 You may like to specify you own 'Signal priority' string for producing RINEX Version 2 files. If you neither convert observation streams to RINEX Version 2 nor concatenate RINEX Version 3 to Version 2 files then the 'Version 2' option is meaningless. 946 947 <p> 948 Signal priorities can be specified as equal for all systems or system specific. The following are example priority strings:</li> 949 <ul> 950 <li>CWPX_? (Same signal priorities valid for all systems)</li> 951 <li>G:CWPX_? R:PCX_? E:CPX_? (Specific signal priorities for GPS, GLONASS and Galileo system)</li> 952 </ul> 953 954 </p> 955 <p> 956 You may like to specify you own 'Signal priority' string(s) for producing RINEX Version 2 files. If you neither convert observation streams to RINEX Version 2 nor concatenate RINEX Version 3 to Version 2 files then the 'Version 2' option is meaningless. 948 957 </p> 949 958 … … 1246 1255 <p> 1247 1256 <ul> 1248 <li>The RINEX Version 2 format ignores signal generation attributes. Therefore, when converting <u>RINEX Version 3 to Version 2</u> Observation files, BNC is forced to somehow map signals with attributes to signals without attributes although this can't be done in one-to-one correspondence. Hence we introduce a 'Version 2 Signal Priority' list of attributes (characters, forming a string) for mapping Version 3 to Version 2, see details in section 'RINEX Observations/Version 2'.</li> 1249 <li>When converting <u>RINEX Version 2 to Version 3</u> Observation files, the tracking mode or channel information in the (last character out of the three characters) observation code is left blank if unknown. This is a compromise, knowing that it is not in accordance with the RINEX Version 3 documentation. The default 'Version 2 Signal Priority' list of observation attributes when mapping RINEX Version 3 to Version 2 is 'CWPX_?', see again details in section 'RINEX Observations/Version 2'.</li> 1257 <li>The RINEX Version 2 format ignores signal generation attributes. Therefore, when converting <u>RINEX Version 3 to Version 2</u> Observation files, BNC is forced to somehow map signals with attributes to signals without attributes although this can't be done in one-to-one correspondence. Hence we introduce a 'Version 2 Signal Priority' list of attributes (characters, forming a string) for mapping Version 3 to Version 2, see details in section 'RINEX Observations/Version 2'. The default 'Version 2 Signal Priority' list of observation attributes when mapping RINEX Version 3 to Version 2 is 'CWPX_?'. Signal priorities can be specified as equal for all systems or system specifics. The following are example priority strings:</li> 1258 <ul> 1259 <li>CWPX_? (Same signal priorities valid for all systems)</li> 1260 <li>G:CWPX_? R:PCX_? E:CPX_? (Specific signal priorities for GPS, GLONASS and Galileo system)</li><br> 1261 </ul> 1262 <li>When converting <u>RINEX Version 2 to Version 3</u> Observation files, the tracking mode or channel information in the (last character out of the three characters) observation code is left blank if unknown. This is a compromise, knowing that it is not in accordance with the RINEX Version 3 documentation.</li> 1250 1263 </ul> 1251 1264 </p>
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