Interpolation in digital modems. I. Fundamentals
Floyd M. Gardner · IEEE Transactions on Communications · 1993
Timing adjustment in a digital modem must be performed by interpolation if sampling is not synchronized to the data symbols. The author describes the fundamental equation for interpolation, proposes a method for control, and outlines the signal-processing characteristics appropriate to an interpolator. A review of previous results and a tutorial exposition of the subject are given, along with new results.>