[time-nuts] Using GPS for space-based instrument

[Brian Kirby]

Somewhere out there is the specs that GPS was designed to.  It list some 
of what they had to do, to make the rubidiums and cesiums work in the 
environment they put them in.  Believe they are called ICD-GPS-200 or 
something like that

Marco IK1ODO -2 wrote:
> At 09.37 11/11/2008, you wrote:
>> Both Symmetricom and Frequency Electronics provide specialist space
>> qualified products. It's not just a case of ruggedisation, but radiation
>> hardening, g sensitivity which need to be designed in.
>>
>> Rob Kimberley
> 
> Also, space qualified GPS must handle the larger doppler shifts due 
> to the relative spacecraft velocity. A "standard" GPS will not work, 
> it is necessary to modify the algorhytms.
> 
> Karl, if you know nothing about GPS, possibly it's best to start 
> reading a tutorial, like http://www.trimble.com/gps/index.shtml - the 
> amount of information to digest before putting a GPS receiver on a 
> spacecraft is huge.
> 
> Marco
> 
> 
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