Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
tree: bc94dc9565
Fetching contributors…

Cannot retrieve contributors at this time

37 lines (31 sloc) 1.232 kB
/*
* Copyright (c) 2011 Matt Jibson <matt.jibson@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
// Package window provides window functions for digital signal processing.
package window
import (
"math"
)
// Hamming returns an L-point symmetric Hamming window.
// Reference: http://www.mathworks.com/help/toolbox/signal/ref/hamming.html
func Hamming(L int) []float64 {
r := make([]float64, L)
N := L - 1
coef := math.Pi * 2 / float64(N)
for n := 0; n <= N; n++ {
r[n] = 0.54 - 0.46*math.Cos(coef*float64(n))
}
return r
}
Jump to Line
Something went wrong with that request. Please try again.