engineering recuitment ISRO Scientist Electronics Mock Test Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS)
The speed improvement factor in DFT is defined as the ratio of number of multiplications in computing DFT directly to the ratio of multiplications in computing DFT using FFT for a 16 point DFT, the speed improvement factor is ______.
1
8
2
32
3
64
4
3