HanWin
Advanced Analysis Library Only
AnalysisLibErrType HanWin (double arrayX[], ssize_t numberOfElements);
Purpose
Applies a Hanning window to a real signal. If y represents the output sequence x, HanWin obtains the elements of y using the following equation:yi = 0.5xi[1 - cos(w)]
for i = 0, 1, 2, ..., n – 1.where n is the number of elements in x and
.This 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 x. |
| Output | ||
| Name | Type | Description |
| arrayX | double [] | On input, the input signal. On output, this parameter returns the input signal with a Hanning 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
Example
Refer to apps\sigproc\sigproc.cws for an example of using the HanWin function.