[time-nuts] GPS Filter

[Chris Albertson]

On Mon, Mar 7, 2011 at 7:34 PM, Bob Camp <lists at rtty.us> wrote:
> Hi
>
> Since you are after timing off of the sat's, having antennas that move, either physically or electrically seems like a problem. Any shift in the effective antenna location as you tracked the satellite would be "exciting" to compensate for. There was an early paper published based on doing this (early 80's).

I don't think anyone would build a phased array GPS antenna but if
they did the elements of the array would only move within a 1/2
wavelength range.  For GPS I think this less than 2 centimeters.   but
the effective center of the antenna would not have to move.

-- 
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Chris Albertson
Redondo Beach, California