Title :
Frequency-shifting using bandpass sampling
Author :
Coulson, Alan J. ; Vaughan, Rodney G. ; Poletti, Mark A.
Author_Institution :
Commun. Electron. Group, Ind. Res. Ltd., Lower Hutt, New Zealand
fDate :
6/1/1994 12:00:00 AM
Abstract :
A frequency-shifting technique is discussed that uses a digital filter to interpolate a bandpass-sampled signal at a low-pass position. The discussion focuses on the derivation of the required digital filter. It is shown that second-order bandpass sampling offers more flexibility than first-order bandpass sampling. It is also shown how well-known quadrature-sampling methods for frequency-shifting are special cases of the general second-order sampling technique
Keywords :
band-pass filters; digital filters; filtering and prediction theory; interpolation; signal processing; bandpass-sampled signal; digital filter; first-order bandpass sampling; frequency-shifting; low-pass position; quadrature-sampling methods; second-order bandpass sampling; Digital filters; Digital signal processors; Digital systems; Frequency domain analysis; Interpolation; Low pass filters; Radar signal processing; Sampling methods; Signal processing; Signal sampling;
Journal_Title :
Signal Processing, IEEE Transactions on
