gr::analog::pll_freqdet_cf_impl Class Reference
#include <pll_freqdet_cf_impl.h>
Public Member Functions | |
| pll_freqdet_cf_impl (float loop_bw, float max_freq, float min_freq) | |
| ~pll_freqdet_cf_impl () | |
| float | mod_2pi (float in) |
| void | set_loop_bandwidth (float bw) |
| Set the loop bandwidth. | |
| void | set_damping_factor (float df) |
| Set the loop damping factor. | |
| void | set_alpha (float alpha) |
| Set the loop gain alpha. | |
| void | set_beta (float beta) |
| Set the loop gain beta. | |
| void | set_frequency (float freq) |
| Set the control loop's frequency. | |
| void | set_phase (float phase) |
| Set the control loop's phase. | |
| void | set_min_freq (float freq) |
| Set the control loop's minimum frequency. | |
| void | set_max_freq (float freq) |
| Set the control loop's maximum frequency. | |
| float | get_loop_bandwidth () const |
| Returns the loop bandwidth. | |
| float | get_damping_factor () const |
| Returns the loop damping factor. | |
| float | get_alpha () const |
| Returns the loop gain alpha. | |
| float | get_beta () const |
| Returns the loop gain beta. | |
| float | get_frequency () const |
| Get the control loop's frequency estimate. | |
| float | get_phase () const |
| Get the control loop's phase estimate. | |
| float | get_min_freq () const |
| Get the control loop's minimum frequency. | |
| float | get_max_freq () const |
| Get the control loop's maximum frequency. | |
| 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 | |
Constructor & Destructor Documentation
| gr::analog::pll_freqdet_cf_impl::pll_freqdet_cf_impl | ( | float | loop_bw, |
| float | max_freq, | ||
| float | min_freq | ||
| ) |
| gr::analog::pll_freqdet_cf_impl::~pll_freqdet_cf_impl | ( | ) |
Member Function Documentation
| float gr::analog::pll_freqdet_cf_impl::get_alpha | ( | ) | const |
Returns the loop gain alpha.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::get_beta | ( | ) | const |
Returns the loop gain beta.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::get_damping_factor | ( | ) | const |
Returns the loop damping factor.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::get_frequency | ( | ) | const |
Get the control loop's frequency estimate.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::get_loop_bandwidth | ( | ) | const |
Returns the loop bandwidth.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::get_max_freq | ( | ) | const |
Get the control loop's maximum frequency.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::get_min_freq | ( | ) | const |
Get the control loop's minimum frequency.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::get_phase | ( | ) | const |
Get the control loop's phase estimate.
Reimplemented from gri_control_loop.
| float gr::analog::pll_freqdet_cf_impl::mod_2pi | ( | float | in | ) |
| void gr::analog::pll_freqdet_cf_impl::set_alpha | ( | float | alpha | ) |
Set the loop gain alpha.
Set's the loop filter's alpha gain parameter.
This value should really only be set by adjusting the loop bandwidth and damping factor.
- Parameters:
-
alpha (float) new alpha gain
Reimplemented from gri_control_loop.
| void gr::analog::pll_freqdet_cf_impl::set_beta | ( | float | beta | ) |
Set the loop gain beta.
Set's the loop filter's beta gain parameter.
This value should really only be set by adjusting the loop bandwidth and damping factor.
- Parameters:
-
beta (float) new beta gain
Reimplemented from gri_control_loop.
| void gr::analog::pll_freqdet_cf_impl::set_damping_factor | ( | float | df | ) |
Set the loop damping factor.
Set the loop filter's damping factor to df. The damping factor should be sqrt(2)/2.0 for critically damped systems. Set it to anything else only if you know what you are doing. It must be a number between 0 and 1.
When a new damping factor is set, the gains, alpha and beta, of the loop are recalculated by a call to update_gains().
- Parameters:
-
df (float) new damping factor
Reimplemented from gri_control_loop.
| void gr::analog::pll_freqdet_cf_impl::set_frequency | ( | float | freq | ) |
Set the control loop's frequency.
Set's the control loop's frequency. While this is normally updated by the inner loop of the algorithm, it could be useful to manually initialize, set, or reset this under certain circumstances.
- Parameters:
-
freq (float) new frequency
Reimplemented from gri_control_loop.
| void gr::analog::pll_freqdet_cf_impl::set_loop_bandwidth | ( | float | bw | ) |
Set the loop bandwidth.
Set the loop filter's bandwidth to bw. This should be between 2*pi/200 and 2*pi/100 (in rads/samp). It must also be a positive number.
When a new damping factor is set, the gains, alpha and beta, of the loop are recalculated by a call to update_gains().
- Parameters:
-
bw (float) new bandwidth
Reimplemented from gri_control_loop.
| void gr::analog::pll_freqdet_cf_impl::set_max_freq | ( | float | freq | ) |
Set the control loop's maximum frequency.
Set the maximum frequency the control loop can track.
- Parameters:
-
freq (float) new max frequency
Reimplemented from gri_control_loop.
| void gr::analog::pll_freqdet_cf_impl::set_min_freq | ( | float | freq | ) |
Set the control loop's minimum frequency.
Set the minimum frequency the control loop can track.
- Parameters:
-
freq (float) new min frequency
Reimplemented from gri_control_loop.
| void gr::analog::pll_freqdet_cf_impl::set_phase | ( | float | phase | ) |
Set the control loop's phase.
Set's the control loop's phase. While this is normally updated by the inner loop of the algorithm, it could be useful to manually initialize, set, or reset this under certain circumstances.
- Parameters:
-
phase (float) new phase
Reimplemented from gri_control_loop.
| int gr::analog::pll_freqdet_cf_impl::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.
The documentation for this class was generated from the following file:
