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CxBkmanWin

LabWindows/CVI

CxBkmanWin

Advanced Analysis Library Only

AnalysisLibErrType CxBkmanWin (NIComplexNumber arrayX[], ssize_t numberOfElements);

Purpose

Applies a Blackman window to the complex input signal. If y represents the output sequence arrayX, CxBkmanWin obtains the elements of y using the following equation:

yi = xi[0.42 - 0.50cos(w) + 0.08cos(2w)]

for i = 0, 1, 2, ..., n – 1

where n is the number of elements in arrayX and .

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

Parameters

Input
Name Type Description
numberOfElements ssize_t Number of elements in arrayX.
Output
Name Type Description
arrayX NIComplexNumber [] On input, the input signal.

On output, this parameter returns the input signal with a Blackman 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 2012 and later