Chirp
Advanced Analysis Library Only
AnalysisLibErrType Chirp (ssize_t numberOfElements, double amplitude, double f1, double f2, double chirp[]);
Purpose
Generates an array that contains a chirp pattern. Chirp generates the output array x according to the following formula:
| where |  |
 |
|
| and where | f1 is the beginning frequency in cycles per sample |
| f2 is the ending frequency in cycles per sample |
Parameters
| Input | ||
| Name | Type | Description |
| numberOfElements | ssize_t | Number of elements to generate in the chirp signal. |
| amplitude | double | Amplitude of the resulting chirp signal. Default Value: 1.0. |
| beginningFrequency | double | Beginning frequency of the resulting chirp signal in normalized units of cycles/sample. Default Value: 0.0. |
| endingFrequency | double | Ending frequency of the resulting chirp signal in normalized units of cycles/sample. Default Value: 0.5. |
| Output | ||
| Name | Type | Description |
| chirp | double [] | The generated chirp pattern. |
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