engineering recuitment NIC NIELIT Scientist B 2023 Mock Test Signals and Systems Fourier Transform Fourier Transform of Periodic Signals
A signal 1 + cos (2πft) + cos(6πft) where f = 1 MHz is sampled at 3 MHz and Fourier Transform is carried out. How many lines will be seen in Fourier Transform?
1
5
2
1
3
3
4
2