Summary
Cosine tappered window.
Unit
SignalUtils
Declaration
Function CosineTappered(Src: TVec; Percent: TSample; Index: integer = 0; Len: integer = -1): TVec;
Description
Applies Cosine tappered window to Src. Window functions are applied to the signal prior to conversion to frequency domain with the FFT algorithm, to reduce the spectral leakage. Their side-effect is a lower frequency resolution. When percent parameter is 100, the CosineTappered window becomes equal to the hanning window. When the Percent parameter is 0, then the window remains rectangular (box car).
Categories
Time window functions| Copyright 2008 Dew Research |
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