Frequency Domain Interpolation

1 May 1977

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems

Vol. AES-13 (3) , 323-327
https://doi.org/10.1109/taes.1977.308403

Abstract

A formula is derived for interpolation between output samples of a fast Fourier transform (FFT), i.e., in the frequency domain. Such a formula is useful for obtaining greater frequency resolution when two coarse FFT outputs are available. Consideration is also given to the effect of such interpolation on a weighted FFT.

Keywords

FREQUENCY DOMAIN ANALYSIS
INTERPOLATION
SIGNAL RESOLUTION
FAST FOURIER TRANSFORMS
DOPPLER RADAR
SAMPLING METHODS
DIGITAL SIGNAL PROCESSING
FREQUENCY MEASUREMENT
LENGTH MEASUREMENT
DATA PROCESSING

This publication has 1 reference indexed in Scilit:

Properties of Dolph-Chebyshev Weighting Functions
IEEE Transactions on Aerospace and Electronic Systems, 1973