Exponential Window VI

Owning Palette: Windows VIs

Requires: Full Development System

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

Details  Example

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Select an instance Exponential Window (DBL)Exponential Window (CDB)

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Exponential Window (DBL)

	X is a real vector.
	final value specifies the coefficient of the last point of the window.
	Windowed X is the input signal with the window applied.
	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.

Exponential Window (CDB)

	X is the complex valued input sequence.
	final value specifies the coefficient of the last point of the window.
	Windowed X is the input signal with the window applied.
	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.

Exponential Window Details

If y represents the output sequence Windowed X, the Exponential Window VI obtains the elements of y from

y_i = x_iexp(a*i)

for i = 0, 1, 2, …, n – 1,

where f is the final value, and n is the number of samples in X.

You can use the Exponential Window VI to analyze transients.

Example

Refer to the Window Comparison VI in the labview\examples\Signal Processing\Windows directory for an example of using the Exponential Window VI.

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