Changeset 2995 in ntrip for trunk/BNC/bnchelp.html


Ignore:
Timestamp:
Feb 16, 2011, 9:22:11 AM (14 years ago)
Author:
weber
Message:

Wording improved

File:
1 edited

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  • trunk/BNC/bnchelp.html

    r2980 r2995  
    10241024<p><a name="pppclient"><h4>3.11. PPP Client</h4></p>
    10251025<p>
    1026 BNC can derive coordinates for a rover position following the Precise Point Positioning (PPP) approach. It uses either code or code plus phase data in ionosphere free linear combinations P3 or L3. Besides pulling a stream of observations from a dual frequency receiver, this also requires pulling in addition
    1027 <ul>
    1028 <li>a stream carrying satellite orbit and clock corrections to Broadcast Ephemeris in the form of 'State Space Representation' (SSR) messages as proposed by RTCM (i.e. premature message type 1060). Note that for BNC these correctors need to be referred to the satellite's Antenna Phase Center (APC). Streams providing such messages are listed on <u>http://igs.bkg.bund.de/ntrip/orbits</u>. Stream products.igs-ip.net:2101/CLK11 is an example.</li>
    1029 <li>a stream carrying Broadcast Ephemeris available as RTCM Version 3 message types 1019, 1020, and (proposed) 1045. This is a must only when the stream coming from the receiver does not contain Broadcast Ephemeris or provides them only at very low repetition rate. Streams providing such messages are listed on <u>http://igs.bkg.bund.de/ntrip/ephemeris</u>. Stream RTCM3EPH on caster products.igs-ip.net:2101 is an example.</li>
     1026BNC can derive coordinates for a rover position following the Precise Point Positioning (PPP) approach. It uses either code or code plus phase data in ionosphere free linear combinations P3 or L3. Besides pulling a stream of observations from a dual frequency receiver, this also
     1027<ul>
     1028<li>requires pulling in addition a stream carrying satellite orbit and clock corrections to Broadcast Ephemeris in the form of 'State Space Representation' (SSR) messages as proposed by RTCM (i.e. premature message type 1060). Note that for BNC these correctors need to be referred to the satellite's Antenna Phase Center (APC). Streams providing such messages are listed on <u>http://igs.bkg.bund.de/ntrip/orbits</u>. Stream products.igs-ip.net:2101/CLK11 is an example.</li>
     1029<li>may require pulling a stream carrying Broadcast Ephemeris available as RTCM Version 3 message types 1019, 1020, and (proposed) 1045. This is a must only when the stream coming from the receiver does not contain Broadcast Ephemeris or provides them only at very low repetition rate. Streams providing such messages are listed on <u>http://igs.bkg.bund.de/ntrip/ephemeris</u>. Stream RTCM3EPH on caster products.igs-ip.net:2101 is an example.</li>
    10301030</ul>
    10311031</p>
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