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Electrical Engineering
Nyquist and FM and Signal Mixing....
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[QUOTE="sophiecentaur, post: 5824246, member: 199289"] I have no idea about the particular situation you are discussion but sub Nyquist sampling of a signal is quite feasible if there is a 'line structure' to the spectrum of the original sampled signal and the sample frequency is chosen to fold the aliases back down into identifiable gaps in between the baseband spectral lines. This requires the sampled signal not to change significantly over a short time - so the sidebands of the basic lines leave plenty of room between them. For an LPON system, there will probably be guard bands between the used channels and aliases could probably be placed in those spaces. [/QUOTE]
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Electrical Engineering
Nyquist and FM and Signal Mixing....
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