11#ifndef INCLUDED_DIGITAL_ADAPTIVE_ALGORITHM_CMA_H 
   12#define INCLUDED_DIGITAL_ADAPTIVE_ALGORITHM_CMA_H 
   16#include <volk/volk_alloc.hh> 
   23    typedef std::shared_ptr<adaptive_algorithm_cma> 
sptr;
 
   26    const float d_step_size;
 
   27    const float d_modulus;
 
   32          d_step_size(step_size),
 
 
   38    static sptr make(constellation_sptr cons, 
float step_size, 
float modulus)
 
 
   66                     unsigned int num_taps)
 override 
   68        volk::vector<gr_complex> prod_vector(num_taps), conj_vector(num_taps);
 
   72        volk_32fc_conjugate_32fc(conj_vector.data(), in, num_taps);
 
   73#if VOLK_VERSION >= 030100 
   74        volk_32fc_s32fc_multiply2_32fc(
 
   75            prod_vector.data(), conj_vector.data(), &err_x_mu, num_taps);
 
   77        volk_32fc_s32fc_multiply_32fc(
 
   78            prod_vector.data(), conj_vector.data(), err_x_mu, num_taps);
 
   80        volk_32fc_x2_add_32fc(
taps, 
taps, prod_vector.data(), num_taps);
 
 
   88        return conj(conj(tap) - d_step_size * u_n * conj(err));
 
 
 
adaptive_algorithm_cma(constellation_sptr cons, float step_size, float modulus)
Definition adaptive_algorithm_cma.h:30
gr_complex update_tap(const gr_complex tap, const gr_complex &u_n, const gr_complex err, const gr_complex decision) override
Definition adaptive_algorithm_cma.h:83
void update_taps(gr_complex *taps, const gr_complex *in, const gr_complex error, const gr_complex decision, unsigned int num_taps) override
Definition adaptive_algorithm_cma.h:62
std::shared_ptr< adaptive_algorithm_cma > sptr
Definition adaptive_algorithm_cma.h:23
static sptr make(constellation_sptr cons, float step_size, float modulus)
Definition adaptive_algorithm_cma.h:38
~adaptive_algorithm_cma() override
Definition adaptive_algorithm_cma.h:91
gr_complex error(const gr_complex &out) const
Definition adaptive_algorithm_cma.h:44
gr_complex error_tr(const gr_complex &u_n, const gr_complex &d_n) const override
Definition adaptive_algorithm_cma.h:57
gr_complex error_dd(gr_complex &u_n, gr_complex &decision) const override
Definition adaptive_algorithm_cma.h:52
adaptive_algorithm(adaptive_algorithm_t alg_type, constellation_sptr cons)
Definition adaptive_algorithm.h:38
#define DIGITAL_API
Definition gr-digital/include/gnuradio/digital/api.h:18
std::complex< float > gr_complex
Definition gr_complex.h:15
static constexpr float taps[NSTEPS+1][NTAPS]
Definition interpolator_taps.h:9
Definition adaptive_algorithm.h:22
adaptive_algorithm_t
Definition adaptive_algorithm.h:23
@ CMA
Definition adaptive_algorithm.h:23
GNU Radio logging wrapper.
Definition basic_block.h:29
static float clip(float x, float clip)
Definition math.h:82