Detect the peak of a signalIf a peak is detected, this block outputs a 1, or it outputs 0's. A separate debug output may be connected, to view the internal EWMA described below. More...
#include <gr_peak_detector2_fb.h>
Public Member Functions | |
| void | set_threshold_factor_rise (float thr) |
| Set the threshold factor value for the rise time. | |
| void | set_look_ahead (int look) |
| Set the look-ahead factor. | |
| void | set_alpha (int alpha) |
| Set the running average alpha. | |
| float | threshold_factor_rise () |
| Get the threshold factor value for the rise time. | |
| int | look_ahead () |
| Get the look-ahead factor value. | |
| float | alpha () |
| Get the alpha value of the running average. | |
| int | work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) |
| just like gr_block::general_work, only this arranges to call consume_each for you | |
Friends | |
| GR_CORE_API gr_peak_detector2_fb_sptr | gr_make_peak_detector2_fb (float threshold_factor_rise, int look_ahead, float alpha) |
Detailed Description
Detect the peak of a signal
If a peak is detected, this block outputs a 1, or it outputs 0's. A separate debug output may be connected, to view the internal EWMA described below.
- Parameters:
-
threshold_factor_rise The threshold factor determins when a peak is present. An EWMA average of the signal is calculated and when the value of the signal goes over threshold_factor_rise*average, we call the peak. look_ahead The look-ahead value is used when the threshold is found to locate the peak within this range. alpha The gain value of a single-pole moving average filter
Member Function Documentation
| float gr_peak_detector2_fb::alpha | ( | ) | [inline] |
Get the alpha value of the running average.
- Returns:
- alpha
| int gr_peak_detector2_fb::look_ahead | ( | ) | [inline] |
Get the look-ahead factor value.
- Returns:
- look-ahead factor
| void gr_peak_detector2_fb::set_alpha | ( | int | alpha | ) | [inline] |
Set the running average alpha.
- Parameters:
-
alpha new alpha for running average
| void gr_peak_detector2_fb::set_look_ahead | ( | int | look | ) | [inline] |
Set the look-ahead factor.
- Parameters:
-
look new look-ahead factor
| void gr_peak_detector2_fb::set_threshold_factor_rise | ( | float | thr | ) | [inline] |
Set the threshold factor value for the rise time.
- Parameters:
-
thr new threshold factor
| float gr_peak_detector2_fb::threshold_factor_rise | ( | ) | [inline] |
Get the threshold factor value for the rise time.
- Returns:
- threshold factor
| int gr_peak_detector2_fb::work | ( | int | noutput_items, |
| gr_vector_const_void_star & | input_items, | ||
| gr_vector_void_star & | output_items | ||
| ) | [virtual] |
just like gr_block::general_work, only this arranges to call consume_each for you
The user must override work to define the signal processing code
Implements gr_sync_block.
Friends And Related Function Documentation
| GR_CORE_API gr_peak_detector2_fb_sptr gr_make_peak_detector2_fb | ( | float | threshold_factor_rise, |
| int | look_ahead, | ||
| float | alpha | ||
| ) | [friend] |
The documentation for this class was generated from the following file:
