11#ifndef INCLUDED_DIGITAL_ADAPTIVE_ALGORITHM_LMS_H 
   12#define INCLUDED_DIGITAL_ADAPTIVE_ALGORITHM_LMS_H 
   16#include <volk/volk_alloc.hh> 
   24    typedef std::shared_ptr<adaptive_algorithm_lms> 
sptr;
 
   27    const float d_step_size;
 
   36    static sptr make(constellation_sptr cons, 
float step_size)
 
 
   47                     unsigned int num_taps)
 override 
   49        volk::vector<gr_complex> prod_vector(num_taps), conj_vector(num_taps);
 
   53        volk_32fc_conjugate_32fc(conj_vector.data(), in, num_taps);
 
   54#if VOLK_VERSION >= 030100 
   55        volk_32fc_s32fc_multiply2_32fc(
 
   56            prod_vector.data(), conj_vector.data(), &err_x_mu, num_taps);
 
   58        volk_32fc_s32fc_multiply_32fc(
 
   59            prod_vector.data(), conj_vector.data(), err_x_mu, num_taps);
 
   61        volk_32fc_x2_add_32fc(
taps, 
taps, prod_vector.data(), num_taps);
 
 
   69        return conj(conj(tap) + d_step_size * u_n * conj(err));
 
 
 
std::shared_ptr< adaptive_algorithm_lms > sptr
Definition adaptive_algorithm_lms.h:24
adaptive_algorithm_lms(constellation_sptr cons, float step_size)
Definition adaptive_algorithm_lms.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_lms.h:64
static sptr make(constellation_sptr cons, float step_size)
Definition adaptive_algorithm_lms.h:36
~adaptive_algorithm_lms() override
Definition adaptive_algorithm_lms.h:41
void initialize_taps(std::vector< gr_complex > &taps) override
Definition adaptive_algorithm_lms.h:72
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_lms.h:43
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
@ LMS
Definition adaptive_algorithm.h:23
GNU Radio logging wrapper.
Definition basic_block.h:29