Note 55. Interpolation Fundamentals
Interpolation is the name given to the process of increasing a discrete-time signal’s sampling rate, while leaving all other characteristics of the signal unchanged to the maximum extent possible. Normally, the goal in designing a DSP system is to reduce the computational burden in the system by using the lowest possible sampling rate that provides a signal quality adequate for the targeted application. Given this goal, why concern ourselves with techniques that are used to increase the sampling rate of a signal that has already been sampled at an adequate rate? There are several situations in which interpolation of a signal may be required:
- The signal will be subjected to some nonlinear processing that will ...
Get Notes on Digital Signal Processing: Practical Recipes for Design, Analysis and Implementation now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
