[teqc] About MP1 and MP2

Lou Estey lou at unavco.org
Wed Jun 23 08:06:20 MDT 2004


Eniuce Menezes de Souza wrote:

> Please, I have a question:
> 
> I would like to know where I can find how the values of MP1 and MP2 are
> calculated or some theory about this.
> 
> Thanks,
> 
> Eniuce Menezes de Souza.

There is a old paper I wrote about teqc: TEQC: The Multi-Purpose Toolkit
for GPS/GLONASS Data, L. H. Estey and C. M. Meertens, GPS Solutions
(pub. by John Wiley & Sons), Vol. 3, No. 1, pp. 42-49, 1999.  We're out
of reprints, but are willing to send a photocopy on an "as needed" basis.
In it, the derivation of the multipath linear combinations are described.
If it weren't for slips, you'd just take the direct RMS of the MP1 or MP2
linear combinations.  Removing the slips is the tricky part. (In the paper,
the algorithm for detecting the multipath slips and removing them is not
explained.)

Or, if someone on the list already has the paper -- or the earlier report
on the old UNAVCO QC by Chris Rocken, Jim Johnson, John Braun, (and others?) --
and is willing to do the derivation for the list, please do so.

BR,
--lou

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Louis H. Estey, Ph.D.              office:  [+001] 303-381-7456
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