[FOSS-GPS] rtklib kinematic Stop Go post-processing with rnx2rtkp
Felipe G. Nievinski
fgnievinski at gmail.com
Tue Apr 21 15:48:45 PDT 2015
I like your idea of using the 1PPS output to sync an external event
logger. Please keep us posted if you make progress in the stop-and-go
hardware part, perhaps better at the NavSpark forum:
I might be able to help with the software part if necessary, especially the
matrix/vector weighted averaging code.
All the best,
Date: Mon, 20 Apr 2015 17:14:28 -0700
> From: julio menezes <yjmenezes at yahoo.com.br>
> To: Open Source GPS-related discussion and support
> <foss-gps at lists.osgeo.org>
> Subject: Re: [FOSS-GPS] rtklib kinematic Stop Go post-processing with
> <1429575268.54261.YahooMailBasic at web140303.mail.bf1.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
> Dear Dr. Felipe Nievinski,
> Em seg, 20/4/15, Felipe G. Nievinski <fgnievinski at gmail.com> escreveu:
> Assunto: [FOSS-GPS] rtklib kinematic Stop Go post-processing with rnx2rtkp
> Para: foss-gps at lists.osgeo.org
> Data: Segunda-feira, 20 de Abril de 2015, 1:58
> Let me resurrect
> this old thread.
> The processing could be done in kinematic mode
> (either forward-only or forward+backward combined).? That
> way, initialization tricks (antenna-swap, fixed-length bar)
> as well as ambiguity reinitialization (cycle slips) are less
> of an issue.?
> Then stop-and-go could be implemented forming
> weighted averages of the kinematic position coordinates and
> precision (3-by-1 vectors and 3-by-3 matrices).
> It'd require a time table of occupation
> start and end times (and marker name), which could be
> obtained simply grepping the rover RINEX observation file to
> extract event flags.
> If I were to implement this, I'd be easier
> for me to do it Octave rather than built into RTKLIB's C
> PS: the non-integer epoch seconds can be handled
> by teqc, see, e.g.:<
> Thank you for your explanation.
> I agree, instead build inside rtklib C code, i am using GNU utils ( grep,
> awk,sed, octave,... ).
> I plan to use 1PPS signal to sync trigger events. ( closed loop ) and will
> write my own occupation time table logger (gps time sync and epoch
> count... ).
> best regards,
> julio menezes
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