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- Nov 13, 2007, 10:29:28 AM (17 years ago)
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trunk/BNC/bnchelp.html
r572 r573 482 482 483 483 <p><a name="history"><h3>6. History</h3></p> 484 <p>485 484 <table> 486 485 <tr></tr> 487 <tr><td>Dec 2006 </td><td>Version 1.0b </td><td> Binaries of first beta version published.</td></tr>486 <tr><td>Dec 2006 </td><td>Version 1.0b </td><td>[Add] First Beta Binaries published based on Qt 4.2.3.</td></tr> 488 487 <tr><td>Jan 2007 </td><td>Version 1.1b </td><td>[Add] Observables C2, S1, and S2<br>[Add] Virtual reference station access<br>[Bug] RTCM2 decoder time tag fixed<br>[Mod] Small letters for public RINEX skeleton files<br>[Add] Online help through Shift+F1</td></tr> 489 488 <tr><td>Apr 2007 </td><td>Version 1.2b </td><td>[Bug] Output only through IP port<br>[Bug] Method 'reconnecting' now thread-save<br> [Add] ZERO decoder added<br> [Mod] Download public RINEX skeletons once per day<br> [Mod] Upgrade to Qt Version 4.2.3<br> [Mod] Replace 'system' call for RINEX script by 'QProcess'<br> [Add] HTTP Host directive for skeleton file download<br> [Add] Percent encoding for user IDs and passwords<br> [Bug] Exit execution of calling thread for RTCM3 streams<br> [Bug] Signal-slot mechanism for threads</td></tr> 490 <tr><td>May 2007 </td><td>Version 1.3 </td><td> Source code published.489 <tr><td>May 2007 </td><td>Version 1.3 </td><td>[Add] Source code published. 491 490 <tr><td>Jul 2007 </td><td>Version 1.4 </td><td>[Bug] Skip messages from proxy server<br> [Bug] Call RINEX script through 'nohup'</td></tr> 492 491 <tr><td>Nov 2007 </td><td>Version 1.5 </td><td>[Add] Save Ephemeris from RTCM Version 3.x streams<br> [Add] Upgrade to Qt Version 4.3.2<br> [Add] Optional RINEX v3 output<br> [Add] SBAS support</td></tr> … … 512 511 8.2. <a href=#rtcm>RTCM</a><br> 513 512 8.2.1 RTCM <a href=#rtcm2> Version 2.x</a><br> 514 8.2.2 RTCM <a href=#rtcm3> Version 3 </a><br>513 8.2.2 RTCM <a href=#rtcm3> Version 3.x</a><br> 515 514 8.3. <a href=#rtigs>RTIGS</a><br> 516 515 8.3.1 <a href=#soc>SOC</a><br> … … 607 606 <p><a name="rtcm3"><h4>8.2.2 RTCM Version 3.x</h4></p> 608 607 <p> 609 RTCM Version 3.x has been developed as a more efficient alternative to RTCM Version 2.x. Service providers and vendors have asked for a standard that would be more efficient, easy to use, and more easily adaptable to new situations. The main complaint was that the Version 2 parity scheme was wasteful of bandwidth. Another complaint was that the parity is not independent from word to word. Still another was that even with so many bits devoted to parity, the actual integrity of the message was not as high as it should be. Plus, 30-bit words are awkward to handle. The Version 3 standard is intended to correct these weaknesses.608 RTCM Version 3.x has been developed as a more efficient alternative to RTCM Version 2.x. Service providers and vendors have asked for a standard that would be more efficient, easy to use, and more easily adaptable to new situations. The main complaint was that the Version 2 parity scheme was wasteful of bandwidth. Another complaint was that the parity is not independent from word to word. Still another was that even with so many bits devoted to parity, the actual integrity of the message was not as high as it should be. Plus, 30-bit words are awkward to handle. The Version 3.x standard is intended to correct these weaknesses. 610 609 </p> 611 610 <p>
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