What is the role of the Fourier transform in signal processing?

A) To filter signals

B) To convert signals from the time domain to the frequency domain

C) To amplify signals

D) To reconstruct analog signals from digital

Answer: B) To convert signals from the time domain to the frequency domain

Explanation: The Fourier transform is a mathematical operation that transforms a signal from the time domain to the frequency domain, allowing analysis of its frequency components and behaviors.