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Firben
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Homework Statement
In some cases, the spectrum replication property of sampling can be used as a substitute for demodulation. Given a signal xa(t) with the spectrum shown, what is the lowest sampling rate that will ensure both no aliasing of the spectrum, and that one of the spectrum replicas is centered at f = 0?
http://s716.photobucket.com/user/Pitoraq/media/Figure_zpsyaqlj2ks.png.html?sort=3&o=0
(Note it should be 125 Hz to the right in the figure not 115 Hz)
Homework Equations
f(Nyquist fre.) = (1/2)*v(sampling freq.) (1)
The Attempt at a Solution
If the bandwidth is 125-95 = 30 Hz
How can i then determine the lowest sampling rate ?
The answer should be 35 MHz
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