gr::blocks::peak_detector_sb Class Reference
Detect the peak of a signal. More...
#include <peak_detector_sb.h>
Inheritance diagram for gr::blocks::peak_detector_sb:
Public Types | |
| typedef boost::shared_ptr < peak_detector_sb > | sptr |
Public Member Functions | |
| virtual void | set_threshold_factor_rise (float thr)=0 |
| Set the threshold factor value for the rise time. | |
| virtual void | set_threshold_factor_fall (float thr)=0 |
| Set the threshold factor value for the fall time. | |
| virtual void | set_look_ahead (int look)=0 |
| Set the look-ahead factor. | |
| virtual void | set_alpha (int alpha)=0 |
| Set the running average alpha. | |
| virtual float | threshold_factor_rise ()=0 |
| Get the threshold factor value for the rise time. | |
| virtual float | threshold_factor_fall ()=0 |
| Get the threshold factor value for the fall time. | |
| virtual int | look_ahead ()=0 |
| Get the look-ahead factor value. | |
| virtual float | alpha ()=0 |
| Get the alpha value of the running average. | |
Static Public Member Functions | |
| static sptr | make (float threshold_factor_rise=0.25, float threshold_factor_fall=0.40, int look_ahead=10, float alpha=0.001) |
Detailed Description
Detect the peak of a signal.
If a peak is detected, this block outputs a 1, or it outputs 0's.
Member Typedef Documentation
Member Function Documentation
| virtual float gr::blocks::peak_detector_sb::alpha | ( | ) | [pure virtual] |
Get the alpha value of the running average.
- Returns:
- alpha
| virtual int gr::blocks::peak_detector_sb::look_ahead | ( | ) | [pure virtual] |
Get the look-ahead factor value.
- Returns:
- look-ahead factor
| static sptr gr::blocks::peak_detector_sb::make | ( | float | threshold_factor_rise = 0.25, |
| float | threshold_factor_fall = 0.40, |
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| int | look_ahead = 10, |
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| float | alpha = 0.001 |
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| ) | [static] |
Make a peak detector block.
- Parameters:
-
threshold_factor_rise The threshold factor determins when a peak has started. An average of the signal is calculated and when the value of the signal goes over threshold_factor_rise*average, we start looking for a peak. threshold_factor_fall The threshold factor determins when a peak has ended. An average of the signal is calculated and when the value of the signal goes bellow threshold_factor_fall*average, we stop looking for a peak. look_ahead The look-ahead value is used when the threshold is found to look if there another peak within this step range. If there is a larger value, we set that as the peak and look ahead again. This is continued until the highest point is found with This look-ahead range. alpha The gain value of a moving average filter
| virtual void gr::blocks::peak_detector_sb::set_alpha | ( | int | alpha | ) | [pure virtual] |
Set the running average alpha.
- Parameters:
-
alpha new alpha for running average
| virtual void gr::blocks::peak_detector_sb::set_look_ahead | ( | int | look | ) | [pure virtual] |
Set the look-ahead factor.
- Parameters:
-
look new look-ahead factor
| virtual void gr::blocks::peak_detector_sb::set_threshold_factor_fall | ( | float | thr | ) | [pure virtual] |
Set the threshold factor value for the fall time.
- Parameters:
-
thr new threshold factor
| virtual void gr::blocks::peak_detector_sb::set_threshold_factor_rise | ( | float | thr | ) | [pure virtual] |
Set the threshold factor value for the rise time.
- Parameters:
-
thr new threshold factor
| virtual float gr::blocks::peak_detector_sb::threshold_factor_fall | ( | ) | [pure virtual] |
Get the threshold factor value for the fall time.
- Returns:
- threshold factor
| virtual float gr::blocks::peak_detector_sb::threshold_factor_rise | ( | ) | [pure virtual] |
Get the threshold factor value for the rise time.
- Returns:
- threshold factor
The documentation for this class was generated from the following file:
