[time-nuts] GPS filtering

Magnus Danielson magnus at rubidium.dyndns.org
Mon May 7 17:07:12 UTC 2012


On 05/07/2012 07:01 PM, Attila Kinali wrote:
> On Mon, 07 May 2012 08:11:53 -0700
> Jim Lux<jimlux at earthlink.net>  wrote:
>
>> ->  the recent GPS filtering thing..
>
> You mean the "Don't GPS your Rb" thread?
>
>> it took a YEAR for someone in the
>> PNT community to finally come up with a good, simple explanation of why
>> L^2 arguments were invalid.  And it comes down to the fact that GPS
>> isn't a communication link, so you can't use that conceptual model to
>> analyze it.  Once you get that, then people go "oh! That's why we can't
>> do that and have it still work"
>
> Uhm.. i don't understand at all. Could you give some pointers or explain
> what L^2 and the rest is?

Ligthsquared and their LTE system that threatend to noise out GPS from 
US. Loads of messages on that on the list already.

Cheers,
Magnus



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