Blackman window

The Blackman window is a mathematical tool used in signal processing to smooth out a signal before performing a Fourier transform. It gradually reduces the signal's values at the edges, minimizing sharp changes that can cause unwanted artifacts called spectral leakage. By applying this window, the analysis becomes more accurate in identifying the true frequency components of a signal, especially when dealing with finite segments of data. Essentially, the Blackman window helps to improve the clarity of the frequency spectrum, making it easier to analyze and interpret signals with fewer distortions.