In this article, we will discuss the fact that choice of different window functions involves a trade-off between the main lobe width and the peak sidelobe (PSL). To gain more insight, we will calculate the Fourier transform of a triangular window using the Fourier transform of a rectangular window. The connection between these two windows helps us to better understand the aforementioned trade-off.
June 16, 2016 by Dr. Steve Arar
A smoother transition band and ripples in the passband are the most important differences between the ideal filters and those designed by window method. This article tries to provide a deeper insight into how truncation leads to these features.
May 23, 2016 by Dr. Steve Arar
A signal that does not repeat itself after a specific interval of time is called an aperiodic signal. By applying a limiting process, the signal can be expressed as a continuous sum (or integral) of everlasting exponentials.
January 20, 2016 by Donald Krambeck