FlatTopWin
Advanced Analysis Library Only
AnalysisLibErrType FlatTopWin (double arrayX[], ssize_t numberOfElements);
Purpose
Applies a flat top window to a real signal. If y represents the output sequence, FlatTopWin obtains the elements of y using the following equation:yi = xi (0.215578948 - 0.416631580cos(w) + 0.277263158cos(2w) - 0.083578947cos(3w) + 0.006947368cos(4w))
for i = 0, 1, 2, ..., n – 1
where n is the number of elements in arrayX.
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 arrayX. |
| Output | ||
| Name | Type | Description |
| arrayX | double [] | On input, the input signal. On output, this parameter returns the input signal with a flat top 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