[eagle] Re: TeamSpeak conference for Tuesday 16 Jan
matt at ettus.com
Tue Jan 9 19:47:55 PST 2007
Frank Brickle wrote:
> Phil Karn wrote:
>> I was going to model phase noise as 1/f^2, but Bob pointed out that the
>> integral of that expression bounded at zero (DC) is undefined. So we
>> need another, more realistic model of oscillator phase noise if we're
>> going to compute its effect on digital demodulation.
Typically you only take a model like this down to about 1Hz. Below 1 Hz
it can be considered flat or even zero. We don't much care about the
phase noise below 1 Hz since the symbol rates are so much higher than this.
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