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ApplyWindow (FPScript)

21.09.2021

Applies a window to the argument.

Syntax

ApplyWindow(DataSet, Window [ , Adjustment ])

 

The syntax of the ApplyWindow function consists of the following parts:

Part

Description

DataSet

The data set specifying the data that will be windowed.

Permitted data structures are data series, data matrix, signal und signal series. All numeric data types are permitted.

If the argument is a list, then the function is executed for each element of the list and the result is also a list.

Window

The fixed or adjustable data window to be applied to the data.

The argument Window can have the following values:

Constant

Meaning

WIN_RECTANGULAR

Rectangular -13 dB (no windowing, width=1)

WIN_WELCH

Welch -21 dB (fixed width=1.4)

WIN_SINE

Sine -23 dB (fixed width=1.5)

WIN_BISQUARE

Bi-Square or Connes -28 dB (fixed width=1.8)

WIN_BARTLETT

Bartlett -27 dB (fixed width=2)

WIN_HANNING

Hanning Max. Rolloff -31 dB (cosine, order 2, fixed width=2)

WIN_TUKEYHANN O

Tukey-Hann -37 dB (fixed width=2)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_BARTLETTMOD O

Modified Bartlett -39 dB (fixed width=2.3)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_HAMMING

Hamming Min. Sidelobe -43 dB (cosine, order 2, fixed width=2)

WIN_COS3MAXROLLOFF O

C3 Max. Rolloff -47 dB (cosine, order 3, fixed width=3)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS3BLACKMAN

Blackman -58 dB (cosine, order 3, fixed width=3)

WIN_COS3BHARRIS62 O

Blackman-Harris -62 dB (cosine, order 3, fixed width=3)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS3NUTALL O

C1 Nutall -64 dB (cosine, order 3, fixed width=3)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS3BLACKMANEXACT O

Blackman Exact -68 dB (cosine, order 3, fixed width=3)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS3BHARRIS68 O

Blackman-Harris -68 dB (cosine, order 3, fixed width=3)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS3MINSIDELOBE O

Nutall -71 dB (cosine, order 3, fixed width=3)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS4MAXROLLOFF O

C5 Max. Rolloff -61 dB (cosine, order 4, fixed width=4)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS4BHARRIS74 O

Blackman-Harris -74 dB (cosine, order 4, fixed width=4)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS4NUTALL83 O

C3 Nutall -83 dB (cosine, order 4, fixed width=4)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS4BHARRIS92 O

Blackman-Harris -92 dB (cosine, order 4, fixed width=4)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS4NUTALL93 O

C1 Nutall -93 dB (cosine, order 4, fixed width=4)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COS4NUTALL96 O

Nutall -96 dB (cosine, order 4, fixed width=4)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_FLATTOP

Flattop -68 dB (cosine, order 5, fixed width=5)

WIN_BETA O

Beta, Max. Rolloff (adjustable width=1.5-6)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COSMAXROLLOFF O

Cosine Max. Rolloff (adjustable width=1.5-6)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_KAISERBESSEL

Kaiser-Bessel (fixed width=3, adjustable width=1.5-6 with the Spectral Analysis option installed)

WIN_VANDERMAAS O

VanderMaas (adjustable width=1.5-6)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_CHEBYSHEV O

Chebyshev (adjustable width=1.75-5.75)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_CHEBYSHEVAPPROX O

Chebyshev Approx. (adjustable width=2.1-5)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_SLEPIAN O

Slepian DPSS-1 (adjustable width=2-5)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_GAUSS O

Gaussian (adjustable width=2-6)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

WIN_COSTAPER O

Tapered Cosine (adjustable width=1-2)

O This constant requires the option Order Tracking or the option Spectral Analysis to be licensed.

If the argument is a list, then the first element in the list is taken. If this is also a list, then the process is repeated.

Adjustment

The one-sided Fourier width as a multiple of the frequency interval. The valid range is window specific within 1.0 to 6.0. The default is 1.5 for a tapered cosine window and 3.0 for all other adjustable data windows.

Permitted data structures are scalar value. All real data types are permitted.

If the argument is a list, then the first element in the list is taken. If this is also a list, then the process is repeated.

Remarks

The result has the same structure and unit as the argument DataSet.

In case of a signal or signal series, only the Y component is modified.

Available in

FlexPro Basic, Professional, Developer Suite

Examples

ApplyWindow(Signal((101,1,0), (101, 0, 0.01)), WIN_BARTLETT)

Evaluates a straight line using a Bartlett window.

See Also

DataWindow Function

VarWindow Function

FFTn Function

Spectral Analysis Option

Data Tapering Window

Fourier Spectral Analysis

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