Google
  Web www.gpspassion.com


GpsPasSion LIVE!
www.flickr.com
This is a Flickr badge showing public photos from GpsPasSion Live !. Make your own badge here.

www.NaviBlog.com



Versions

Links/Liens




Portal/Portail
Rechercher

- -

Polls/Sondages
Sondage
Pour vous guider sur la Route :
GPS Mobile (SEM)
GPS Intégré
Smartphone
Autre
Voter  -  Résultat des votes
Votes : 2317




Club GpsPasSion
Soutenez le site!

USA: (US$)
EUROPE: (€)
Guide Paypal


GpsPasSion Forums
Home | Profile | Register/Enregist. | Active Topics | Search/Recherche | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 Advanced Topics
 General Technical Discussions
 88 LEA-6T in a row with RTKLIB ?

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:
UserName:
Password:
Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkInsert EmailInsert Image Insert CodeInsert QuoteInsert List
   
Message:

* HTML is OFF
* Forum Code is ON
Smilies
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

  Check here to include your profile signature.
Check here to subscribe to this topic.
    

T O P I C    R E V I E W
stuliveshere Posted - 01 févr. 2012 : 09:43:47
I currently have 88 LEA-6Ts in a row, separated by ~10m.

the GPSs are part of a geophysical acquisition system, and are not actually being used right now. I'd like to use them to work out the relative separation of instruments.

I'm considering using RTKLIB to work out the relative separation similar to the technique used in

http://users.tkk.fi/~coandrei/pdf/Andrei_ESA2011.pdf

which results in approximately 2cm for a ~10 minute acquisition. (I get about an hour per station)

was wondering if anyone had any suggestions/comments?



3   L A T E S T    R E P L I E S    (Newest First)
micmail Posted - 01 févr. 2012 : 16:36:06
Well,

I think that the case of a single pair is the simplest: Base+Rover or moving baseline is similar, apart from the fact that in the first case you have an accurate absolute base position and in the other you are just interested about the relative position between two objects.

So I imagine you can consider on point of the grid fixed and determine the position of the other ones. IMHO doing it by pairs is the least computationally intensive option as you would run a carrier ambiguity resolution once for 2 points, twice for 3 points, and 87 times for your array. Any combination, weighted or not, of measurements will come at computational cost... either before the carrier ambiguity resolution (i.e. combining the ranges, which will make harder to use RTKLIB), or after (i.e. once the baseline are determined, should involve some kind of LSQ programming anyway).

Don't you agree?

Mic
stuliveshere Posted - 01 févr. 2012 : 15:21:10
My understanding of RTKLIB is it is primarily designed for a base station and a rover, or perhaps 2 fixed stations. As it stands right now, I'll have to process the entire array as a sequence of pairs.

I'm wondering if there's a better way. I have some ideas... but right now, I'll admit, I'm fishing for ideas...
micmail Posted - 01 févr. 2012 : 14:28:46
Hi,

Just about one kilometer of GPS receivers? Wow!
LEA-6T works seamlessly with RTKLIB.. what kind of advice do you need?
Is it about the automation of the whole process?
Or how to configure the software?

Regards,
Michele

P.S.: Have you considered gogps:
http://www.gogps-project.org/
too?

GpsPasSion Forums © 2002-2014_GpsPasSion/Manzanite Go To Top Of Page
This page was generated in 0,33 seconds. Powered By: Snitz Forums 2000 Version 3.4.05