Applies an Exact Blackman window to the input signal X. Wire data to the X input to determine the polymorphic instance to use or manually select the instance.


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Inputs/Outputs

  • c1ddbl.png X —

    X is a real vector.

  • i1ddbl.png Windowed X —

    Windowed X is the input signal with the window applied.

  • ii32.png error —

    error returns any error or warning from the VI. You can wire error to the Error Cluster From Error Code VI to convert the error code or warning into an error cluster.

    • If y represents the output sequence Windowed X, the Exact Blackman Window VI obtains the elements of y from

    yi = xi[a0 – a1cos(w) + a2cos(2w)]

    for i = 0, 1, 2, …, n – 1

    ,

    where n is the number of elements in X,

    a0 = 7938/18608, a1 = 9240/18608, and a2 = 1430/18608.

    Examples

    Refer to the following example files included with LabVIEW.

    • labview\examples\Signal Processing\Windows\Window Comparison.vi