18 lines
738 B
C#
18 lines
738 B
C#
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using System;
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namespace FftSharp.Windows
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{
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public class Hanning : Window, IWindow
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{
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public override string Name => "Hanning";
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public override string Description =>
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"The Hanning window has a sinusoidal shape which touches zero at the edges (unlike the similar Hamming window). " +
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"It has good frequency resolution, low spectral leakage, and is satisfactory for 95 percent of use cases. " +
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"If you do not know the nature of the signal but you want to apply a smoothing window, start with the Hann window.";
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protected override double windowValue(int index, int size)
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{
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return 0.5 - 0.5 * Math.Cos(2 * Math.PI * index / size);
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}
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}
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}
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