Changeset 9437 in ntrip for trunk/BNC/src/bnchelp.html


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Timestamp:
May 21, 2021, 12:59:06 PM (3 years ago)
Author:
stuerze
Message:
 
File:
1 edited

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  • trunk/BNC/src/bnchelp.html

    r9424 r9437  
    44024402<p><h4 id="upeph">2.16 Upload Ephemeris</h4></p>
    44034403<p>
    4404 BNC can generate streams carrying only Broadcast Ephemeris in RTCM Version 3 format and upload them to an Ntrip Broadcaster. This can be done for individual satellite systems or for all satellite systems, specifying the parameter ‘System’ for each stream.
    4405 </p>
    4406 
    4407 <p>
    4408 Note that Broadcast Ephemeris received in real-time have a system specific period of validity in BNC which is defined in accordance with the update rates of the navigation messages.
     4404BNC can generate streams carrying only Broadcast Ephemeris in RTCM Version 3 format and upload them to an Ntrip Broadcaster. The satellite system(s) that shall be part of the uploaded stream can be specified using the 'System' parameter. This can be done:
     4405<ul>
     4406<li>for an individual satellite system, specifying e.g. 'G' for GPS or 'E' for Galileo, etc. or </li>
     4407<li>for a seclection of satellite systems, specifying e.g. 'GRE' for GPS and GLONASS and Galileo or</li>
     4408<li>for all satellite systems, specifying 'ALL'. </li>
     4409</ul>
     4410</p>
     4411<p>
     4412Note that Broadcast Ephemeris received in real-time have a system specific period of validity in BNC which is defined in accordance with the update rates and validity intervals of the navigation messages.
    44094413<ul>
    44104414<li>GPS ephemeris will be interpreted as outdated and ignored when older than 4 hours.</li>
    4411 <li>GLONASS ephemeris will be interpreted as outdated and ignored when older than 2 hours.</li>
     4415<li>GLONASS ephemeris will be interpreted as outdated and ignored when older than 1 hours.</li>
    44124416<li>Galileo ephemeris will be interpreted as outdated and ignored when older than 4 hours.</li>
    4413 <li>BDS ephemeris will be interpreted as outdated and ignored when older than 6 hours.</li>
    4414 <li>SBAS ephemeris will be interpreted as outdated and ignored when older than 1 hour.</li>
    4415 <li>QZSS ephemeris will be interpreted as outdated and ignored when older than 3 hours.</li>
     4417<li>BDS ephemeris will be interpreted as outdated and ignored when older than 1 hours.</li>
     4418<li>SBAS ephemeris will be interpreted as outdated and ignored when older than 10 minutes.</li>
     4419<li>QZSS ephemeris will be interpreted as outdated and ignored when older than 2 hours.</li>
    44164420<li>IRNSS ephemeris will be interpreted as outdated and ignored when older than 24 hours.</li>
    44174421</ul>
    … …  
    44214425<p>
    44224426Furthermore, received Broadcast Ephemeris parameters pass through a plausibility check in BNC which allows to ignore incorrect ephemeris data when necessary, leaving a note 'WRONG EPHEMERIS' in the logfile.
     4427Unhealthy ephemerides will be not excluded. A note 'UNHEALTHY EPHEMERIS' will be added in the logfile.
    44234428</p>
    44244429
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