Re: Space applications

Hello Guido,

There are tons of space versions of MG5001/Orion 
build by universities:

http://www.mae.cornell.edu/cubesat/
http://dean.sabella.org/thesis/
http://www.asri.org.au/ASRI/research/satellite/JAESAT/system/Space.xml
http://www.gmat.unsw.edu.au/snap/work/theme4.htm
http://gps.csr.utexas.edu/orion/
http://esl.ee.sun.ac.za/~bnortier/

Also, there are a few commercial space receivers
based on MG5001 available:

http://www.sstl.co.uk/documents/Subsys_SGR05_HQ[1].pdf
http://www.sunspace.co.za/Products/Products.html
http://www.weblab.dlr.de/rbrt/GpsNav/RcvDev/Phoenix.html

I also suggest to contact NovAtel and ask if they
could remove altitude and speed limits from their
SuperStar II receiver. This could be the easiest
way, and it shouldn't cost much.

> I think we will need a Kalman filter to predict
> orbit and velovity of the picosatellite.

Not necessarily. You may need to predict range rate
due to high Doppler to minimize the code search,
but a simple propagator (TLE or even Keplerian)
works well. Ben Nortier discuss about it in his
web page.

Tak




	
		
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