HUT Communications Lab. / Timo O. Korhonen
21
Observations on chopper sampling
nResulting
spectra
nhas the
envelope of the sampling waveform
nhas the sampled signal repeated at the integer multiples of the sampling
frequency
nTherefore
the sampled signal can be reconstructed by filtering provided that
Sampled signal is band limited
Sampling rate is high enough
If these conditions are not met,
spectral folding results: