Question

Describe the various trade-offs which need to be considered for DFT.

Answer 1

In my last article, Insight into the Results of DEFT Analysis in Digital Signal Processing previous, we saw that it is possible to misinterpret the results of a Discrete Fourier Transform (DEFT) analysis. The DEFT leakage prevents us from precisely determining the frequency of the input sinusoid. This article will first examine the DEFT leakage in more detail. Then it will explain how the use of different window functions can alleviate the problem.