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Re: [Discuss-gnuradio] radio astronomy fast radio burst help requested
From: |
madengr |
Subject: |
Re: [Discuss-gnuradio] radio astronomy fast radio burst help requested |
Date: |
Fri, 1 Apr 2016 05:42:18 -0700 (MST) |
What would it take to get phase coherency, say at 1 GHz, on a global scale;
short of running cables? I assume with a moderate priced GPSDO one can get
10E-12 stability, so that would be 0.01 Hz frequency stability at 1 GHz.
Does that mean you can integrate for 10 seconds and stay within 0.1 radian
phase drift?
Lou
Marcus D. Leech wrote
> Since those stations would likely not be phase-coherent,
> then any spectra adding would only improve sensitivity by
> sqrt(N)--you don't get to effectively use the sum of the effective
> apertures of
> the individual stations.
--
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