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

Note 59. Bandpass Sampling: Wedge Diagrams

From Note 58, we know that in bandpass sampling, the sampling rate, f_s, must satisfy

59.1

where m is an integer that satisfies

59.2

Many of the older discussions of bandpass sampling (such as [1]) include a diagram similar to Figure 59.1, which depicts only the lower bound imposed by Eq. (59.1). This diagram can be misleading to practitioners whose experience is limited to baseband sampling, where oversampling is often viewed as a good thing. It would be easy to select a sampling rate that satisfies ...