Sam Storm van Leeuwen
samsvl at nlr.nl
Wed Mar 8 01:13:34 MST 2006
The data looks like single frequency data of a low cost receiver, right?
If this is the case, you can ,with limited accuracy, interpolate the
range data (pseudorange, integrated carrier) using the following steps:
1. calculate the 'stand alone' positions for each epoch. As a by-product
you'll get the receiver clock error with reasonable accuracy.
2. For each epoch: correct epoch time by applying the clock error, and
correct pseudorange and integrated carrier again by applying clock error
(see RINEX 2.10 section 3. DEFINITION OF THE OBSERVABLES)
3. Most probably the epoch time will not be a full second.
Now you can interpolate the ranges to the full second.
and this process is of limited accuracy.
Maybe better than nothing!
At 20:43 7-3-2006 +0000, you wrote:
>I would like to know if it is possible to correct the
>GPS observables (of a RINEX file) of the receiver
> 05 5 25 0 0 15.2230000 0 8G16G 3G22G14 ...
> 31687139.09146 24649869.97746 89193652.7594
> 4021695.90246 3073693.39846 89490059.7434
> 20737659.47748 16132538.86747 87108723.2594
>The observables are degraded by receiver error that is
>0.223. Is it possible to correct the observables and
>consequently change 15.2230000 to 15.000???
>Thanks, Daniele Barroca.
>Sao Paulo State, Brazil.
>Yahoo! Acesso Grátis - Internet rápida e grátis. Instale o discador agora!
>teqc mailing list
>teqc at ls.unavco.org
Sam Storm van Leeuwen e-mail: samsvl at nlr.nl
National Aerospace Laboratory NLR web: http://www.nlr.nl
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