EEE 424 - 01
Windowing is multiplying the signal with a windowing function in time domain. The main objective of
the windowing is obtaining better frequency content after taking DFT. By windowing, side lobes and
leakage in frequency domain decrease and main frequency content emerges. There are different
types of windowing functions such as Hamming, Hanning, rectangular, Kaiser and so on but for this
application, Hamming window is well enough, because; it suppresses side lobes better.
Figure 6 – Rectangular Window
Figure 7 – Hamming Window