finitewindow
Finitewindow is a term used in signal processing to denote a window function with finite duration. It refers to a function that is nonzero only over a bounded interval and vanishes outside that interval, typically used to taper time-domain data before frequency-domain analysis.
In mathematical terms, a discrete-time finitewindow w[n] is defined for n in a finite range, often 0
Key properties of finitewindows include their time localization and the trade-off between main-lobe width and side-lobe
Applications of finitewindows span spectral density estimation, the design of finite impulse response filters, and time-frequency
See also: window function, spectral leakage, discrete Fourier transform, short-time Fourier transform.