hamming function

Hamming window

Return the filter coefficients of a Hamming window of length n.

hamming(n, method = c("symmetric", "periodic"))

Arguments

• n: Window length, specified as a positive integer.

• method: Character string. Window sampling method, specified as:

  • "symmetric": (Default). Use this option when using windows for filter design.
  • "periodic": This option is useful for spectral analysis because it enables a windowed signal to have the perfect periodic extension implicit in the discrete Fourier transform. When "periodic" is specified, the function computes a window of length n + 1 and returns the first n points.

Returns

Hamming window, returned as a vector. If you specify a one-point window (n = 1), the value 1 is returned.

Details

The Hamming window is a member of the family of cosine sum windows.

Examples

h <- hamming(64)
plot (h, type = "l", xlab = "Samples", ylab =" Amplitude")

hs = hamming(64,'symmetric')
hp = hamming(63,'periodic')
plot (hs, type = "l", xlab = "Samples", ylab =" Amplitude")
lines(hp, col="red")

Author(s)

Andreas Weingessel, Andreas.Weingessel@ci.tuwien.ac.at .

Conversion to R by Geert van Boxtel G.J.M.vanBoxtel@gmail.com .