Notes on Digital Signal Processing: Practical Recipes for Design, Analysis and Implementation

Note 58. Sampling Bandpass Signals

This note develops a set of rules for sampling bandpass signals at rates that are substantially lower than the rates developed of lowpass signals in Note 3.

Design Rule 58.1. Bandpass Sampling Rates

When sampling a bandpass signal having an upper frequency of f_H and a bandwidth of B, the sampling rate, f_s, must satisfy

where m is an integer that satisfies

Key Concept 58.1. Uniform Bandpass Sampling

• Sampling a signal in the time domain creates periodic images of the original signal’s spectrum in the frequency ...