What is the purpose of a "Hamming window" in signal processing?

A) To amplify high frequencies

B) To reduce spectral leakage

C) To perform digital filtering

D) To increase sampling rate

Answer: B) To reduce spectral leakage

Explanation: The Hamming window is a type of tapering window used in spectral analysis to reduce spectral leakage, providing a smoother transition at the edges of the signal window and improving frequency resolution.