What is the meaning of DFT?
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Description : What is the difference between DFT and FFT?

Description : What is the use of DFT in DSP?

Description : Consider the following statements with respect to Discrete Fourier Transform (DFT) : 1. It is obtained by performing a sampling operation in the time domain. 2. It transforms a finite duration sequence into a discrete frequency spectrum. 3 ... (a) 1 and 2 only (b) 2 and 3 only (c) 1 only (d) 3 only

Answer : Consider the following statements with respect to Discrete Fourier Transform (DFT) : 1. It is obtained by performing a sampling operation in the time domain. 2. It transforms a finite duration sequence into a discrete frequency spectrum. ... (a) 1 and 2 only (b) 2 and 3 only (c) 1 only (d) 3 only

Description : Speed of improvement of computation of 64 point DFT by using FFT compared to direct computation is about  A) 4 B) 8 C) 16 D) 20 

Description : What is the use of Fast Fourier Transform?