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GNU Radio Manual and C++ API Reference
3.7.4
The Free & Open Software Radio Ecosystem
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GNU Radio Manual and C++ API Reference
3.7.4
The Free & Open Software Radio Ecosystem
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Rectangular digital constellation. More...
#include <gnuradio/digital/constellation.h>
Public Types | |
| typedef boost::shared_ptr < constellation_expl_rect > | sptr |
 Public Types inherited from gr::digital::constellation_rect | |
| typedef boost::shared_ptr < constellation_rect > | sptr |
Public Member Functions | |
| ~constellation_expl_rect () | |
| Public Member Functions inherited from gr::digital::constellation_rect | |
| ~constellation_rect () | |
| Public Member Functions inherited from gr::digital::constellation_sector | |
| constellation_sector (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int dimensionality, unsigned int n_sectors) | |
| ~constellation_sector () | |
| unsigned int | decision_maker (const gr_complex *sample) |
| Returns the constellation point that matches best. More... | |
| Public Member Functions inherited from gr::digital::constellation | |
| constellation (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int dimensionality) | |
| constellation () | |
| virtual | ~constellation () |
| void | map_to_points (unsigned int value, gr_complex *points) |
| Returns the constellation points for a symbol value. More... | |
| std::vector< gr_complex > | map_to_points_v (unsigned int value) |
| unsigned int | decision_maker_v (std::vector< gr_complex > sample) |
| Takes a vector rather than a pointer. Better for SWIG wrapping. More... | |
| unsigned int | decision_maker_pe (const gr_complex *sample, float *phase_error) |
| Also calculates the phase error. More... | |
| virtual void | calc_metric (const gr_complex *sample, float *metric, gr::digital::trellis_metric_type_t type) |
| Calculates distance. More... | |
| virtual void | calc_euclidean_metric (const gr_complex *sample, float *metric) |
| virtual void | calc_hard_symbol_metric (const gr_complex *sample, float *metric) |
| std::vector< gr_complex > | points () |
| Returns the set of points in this constellation. More... | |
| std::vector< gr_complex > | s_points () |
| Returns the vector of points in this constellation. Raise error if dimensionality is not one. More... | |
| std::vector< std::vector < gr_complex > > | v_points () |
| Returns a vector of vectors of points. More... | |
| bool | apply_pre_diff_code () |
| Whether to apply an encoding before doing differential encoding. (e.g. gray coding) More... | |
| void | set_pre_diff_code (bool a) |
| Whether to apply an encoding before doing differential encoding. (e.g. gray coding) More... | |
| std::vector< int > | pre_diff_code () |
| Returns the encoding to apply before differential encoding. More... | |
| unsigned int | rotational_symmetry () |
| Returns the order of rotational symmetry. More... | |
| unsigned int | dimensionality () |
| Returns the number of complex numbers in a single symbol. More... | |
| unsigned int | bits_per_symbol () |
| unsigned int | arity () |
| constellation_sptr | base () |
| pmt::pmt_t | as_pmt () |
| void | gen_soft_dec_lut (int precision, float npwr=1.0) |
| Generates the soft decision LUT based on constellation and symbol map. More... | |
| virtual std::vector< float > | calc_soft_dec (gr_complex sample, float npwr=1.0) |
Calculate soft decisions for the given sample. More... | |
| void | set_soft_dec_lut (const std::vector< std::vector< float > > &soft_dec_lut, int precision) |
| Define a soft decision look-up table. More... | |
| bool | has_soft_dec_lut () |
| Returns True if the soft decision LUT has been defined, False otherwise. More... | |
| std::vector< float > | soft_decision_maker (gr_complex sample) |
Returns the soft decisions for the given sample. More... | |
Static Public Member Functions | |
| static sptr | make (std::vector< gr_complex > constellation, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int real_sectors, unsigned int imag_sectors, float width_real_sectors, float width_imag_sectors, std::vector< unsigned int > sector_values) |
| Static Public Member Functions inherited from gr::digital::constellation_rect | |
| static constellation_rect::sptr | make (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int real_sectors, unsigned int imag_sectors, float width_real_sectors, float width_imag_sectors) |
Protected Member Functions | |
| constellation_expl_rect (std::vector< gr_complex > constellation, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int real_sectors, unsigned int imag_sectors, float width_real_sectors, float width_imag_sectors, std::vector< unsigned int > sector_values) | |
| unsigned int | calc_sector_value (unsigned int sector) |
| Protected Member Functions inherited from gr::digital::constellation_rect | |
| constellation_rect (std::vector< gr_complex > constell, std::vector< int > pre_diff_code, unsigned int rotational_symmetry, unsigned int real_sectors, unsigned int imag_sectors, float width_real_sectors, float width_imag_sectors) | |
| unsigned int | get_sector (const gr_complex *sample) |
| gr_complex | calc_sector_center (unsigned int sector) |
| Protected Member Functions inherited from gr::digital::constellation_sector | |
| void | find_sector_values () |
| Protected Member Functions inherited from gr::digital::constellation | |
| float | get_distance (unsigned int index, const gr_complex *sample) |
| unsigned int | get_closest_point (const gr_complex *sample) |
| void | calc_arity () |
| void | max_min_axes () |
Additional Inherited Members | |
| Protected Attributes inherited from gr::digital::constellation_sector | |
| unsigned int | n_sectors |
| Protected Attributes inherited from gr::digital::constellation | |
| std::vector< gr_complex > | d_constellation |
| std::vector< int > | d_pre_diff_code |
| bool | d_apply_pre_diff_code |
| unsigned int | d_rotational_symmetry |
| unsigned int | d_dimensionality |
| unsigned int | d_arity |
| float | d_scalefactor |
| The factor by which the user given constellation points were scaled by to achieve an average amplitude of 1. More... | |
| float | d_re_min |
| float | d_re_max |
| float | d_im_min |
| float | d_im_max |
| std::vector< std::vector< float > > | d_soft_dec_lut |
| int | d_lut_precision |
| float | d_lut_scale |
Rectangular digital constellation.
Only implemented for 1-(complex)dimensional constellation.
Constellation space is divided into rectangular sectors. Each sector is associated with the nearest constellation point.
This class is different from constellation_rect in that the mapping from sector to constellation point is explicitly passed into the constructor as sector_values. Usually we do not need this, since we want each sector to be automatically mapped to the closest constellation point, however sometimes it's nice to have the flexibility.
| gr::digital::constellation_expl_rect::~constellation_expl_rect | ( | ) |
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inlineprotectedvirtual |
Reimplemented from gr::digital::constellation_rect.
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static |
1.8.6