Basically this sampling technique divides the spectrum up into regions that are fs wide. So if your sampling rate is say, 10 kHz, you can look at the region from -5 kHz to 5 kHz, or from 5kHz to 15 kHz, or 15 to 25, etc.
Nyquist zones are Fs/2 wide. Each Nyquist zone contains a copy of the same spectrum (the spectrum in a Nyquist zone is the mirror image of the spectrum of the neighboring zones).
** This applies to real-valued signals only (mirroring does not occur for complex signals and for these Nyquist zones are fs wide)
Nyquist zones are Fs/2 wide. Each Nyquist zone contains a copy of the same spectrum (the spectrum in a Nyquist zone is the mirror image of the spectrum of the neighboring zones).
** This applies to real-valued signals only (mirroring does not occur for complex signals and for these Nyquist zones are fs wide)
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