Changeset 5616 in ntrip
- Timestamp:
- Jan 22, 2014, 3:03:26 PM (11 years ago)
- Location:
- trunk/BNC/txt
- Files:
-
- 2 added
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
trunk/BNC/txt/frankfurt.tex
r5615 r5616 422 422 \begin{frame} 423 423 \frametitle{Principles of PPP Service} 424 \framesubtitle{Code Biases}425 424 426 425 Apart from the orbit corrections (will be discussed later) the server has to provide the … … 447 446 448 447 \begin{frame} 449 \frametitle{Principles of PPP Service} 450 \framesubtitle{Handling Code Biases} 451 452 In order to avoid the necessity to disseminate the code biases $p^{ij}_3$ and still guarantee that 453 the client may decently use the code observations we adopted the following approach: 454 455 Denoting the code bias estimated by a server at epoch $t_0$ by $\bar{p}^{ij}_3 = p^{ij}_3(t_0)$ we 456 modify the satellite clock corrections as follows: 457 \be 458 c\bar\delta^{ij} = c\delta^{ij} - \bar{p}^{ij}_3 459 \ee 460 and disseminate $c\bar\delta^{ij}$ instead of $c\delta^{ij}$. This modification has no effect on 461 the processing of phase observations at the client-side (the constant difference is absorb by 462 estimated ambiguities). For the processing of code observations it has the benefit that the client 463 does not see the code bias $p^{ij}_3$ but only 464 \bdm 465 \bar{p}^{ij}_3-p^{ij}_3 466 \edm 467 and we try to keep the difference $\bar{p}^{ij}_3-p^{ij}_3$ lower than a selected threshold. 448 \frametitle{PPP of Moving Receiver by BNC} 449 \begin{center} 450 \includegraphics[width=0.6\textwidth,angle=0]{screenshot32.png} 451 \end{center} 452 \end{frame} 453 454 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 455 456 \begin{frame} 457 \frametitle{PPP - Server-Side} 458 459 \includegraphics[width=0.8\textwidth,angle=0]{igs_map.png} 460 461 \vspace*{-2cm} 462 463 \hspace*{2cm} 464 \includegraphics[width=0.8\textwidth,angle=0]{bnc_rtnet_flow.png} 465 468 466 469 467 \end{frame}
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