Changeset 2096 in ntrip
- Timestamp:
- Dec 7, 2009, 12:25:33 PM (15 years ago)
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trunk/BNC/bnchelp.html
r2094 r2096 931 931 <p><a name="pppclient"><h4>3.11. PPP Client</h4></p> 932 932 <p> 933 BNC can derive coordinates for a rover position following the Precise Point Positioning (PPP) approach. It uses either code or phase data in ionosphere free linear combinations P3 or L3. Besides pulling a stream of observations from a receiver this also requires pulling933 BNC can derive coordinates for a rover position following the Precise Point Positioning (PPP) approach. It uses either code or phase data in ionosphere free linear combinations P3 or L3. Besides pulling a stream of observations from a receiver, this also requires pulling 934 934 <ul> 935 935 <li>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 refer to the satellite's Antenna Phase Center (APC).</li> 936 936 <li>Broadcast Ephemeris available as RTCM Version 3 message types 1019 and 1020. Note that a stream dedicated to providing these messages is 'RTCM3EPH" on NTRIP broadcaster www.igs-ip.net.</li> 937 937 </ul> 938 </p> 939 940 <p> 941 PPP results are saved in BNC's logfile. Depending on processing options, the following values are recorded every second (example): 942 </p> 943 <pre> 944 09-12-07 11:01:50 PPP ZIM20 11:02:03.0 8 4331302.284 567537.941 4633134.936 -5.669 -0.155 945 </pre> 946 <p> 947 The 'PPP' string in that is followed by the selected mounpoint, a PPP time stamp, the number of processed satellites, XYZ coordinates in [m], clock correction in [m], and the estimated troposphere correction in [m]. 938 948 </p> 939 949
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