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ExpWin

LabWindows/CVI

ExpWin

Advanced Analysis Library Only

AnalysisLibErrType ExpWin (double arrayX[], ssize_t numberOFinalValueElements, double final);

Purpose

Applies an exponential window to a real signal. If y represents the output sequence, ExpWin obtains the elements of y using the following equation:

yi = xieai

for i = 0, 1, 2, ..., n – 1,

where f is the final value, and n is the number of elements in arrayX.

You can use this function to analyze transients.

This function performs the window operation in place; that is, the windowed data replaces the input data.

Parameters

Input
Name Type Description
numberOFinalValueElements ssize_t Number of elements in arrayX.
final double The coefficient of the last point of the window.

Default Value: 0.01.
Output
Name Type Description
arrayX double [] On input, the input signal.

On output, this parameter returns the input signal with the exponential window applied.

Return Value

Name Type Description
status AnalysisLibErrType A value that specifies the type of error that occurred. Refer to analysis.h for definitions of these constants.

Additional Information

Library: Advanced Analysis Library

Include file: analysis.h

LabWindows/CVI compatibility: LabWindows/CVI 3.1 and later