nlms_filter_ff_impl.h
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/* -*- c++ -*- */
/*
* Copyright 2018 <+YOU OR YOUR COMPANY+>.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
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*/
#ifndef INCLUDED_ADAPT_NLMS_FILTER_FF_IMPL_H
#define INCLUDED_ADAPT_NLMS_FILTER_FF_IMPL_H
#include "config.h"
#ifdef ARMADILLO_FOUND
#include <armadillo>
#endif
#include <adapt/nlms_filter_ff.h>
#include <gnuradio/filter/fir_filter.h>
namespace gr {
namespace adapt {
class nlms_filter_ff_impl : public nlms_filter_ff, filter::kernel::fir_filter_fff {
private:
#ifdef ARMADILLO_FOUND
arma::fvec d_taps;
arma::fvec d_new_taps;
#else
std::vector<float> d_new_taps;
#endif // ARMADILLO_FOUND
bool d_first_input;
bool d_updated;
float d_error, d_power;
float d_mu, d_epsilon;
unsigned d_skip, d_i;
bool d_adapt, d_bypass, d_reset;
protected:
float error(const float& desired, const float& out);
void update_tap(float& tap, const float& in);
public:
nlms_filter_ff_impl(bool first_input,
int num_taps,
float mu,
unsigned skip,
unsigned decimation,
bool adapt,
bool bypass,
bool reset);
~nlms_filter_ff_impl() = default;
const std::vector<float>& get_taps() override;
void set_taps(const std::vector<float>& new_taps) override;
float get_mu() const override;
void set_mu(float mu) override;
unsigned get_skip() const override;
void set_skip(unsigned skip) override;
bool get_adapt() const override;
void set_adapt(bool adapt) override;
bool get_bypass() const override;
void set_bypass(bool bypass) override;
bool get_reset() const override;
void set_reset(bool reset) override;
// Where all the action really happens
int work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items);
};
} // namespace adapt
} // namespace gr
#endif /* INCLUDED_ADAPT_NLMS_FILTER_FF_IMPL_H */
gr::adapt::nlms_filter_ff_impl
Definition: nlms_filter_ff_impl.h:34
gr::adapt::nlms_filter_ff_impl::set_reset
void set_reset(bool reset) override
gr::adapt::nlms_filter_ff_impl::get_bypass
bool get_bypass() const override
gr::adapt::nlms_filter_ff_impl::set_adapt
void set_adapt(bool adapt) override
gr::adapt::nlms_filter_ff_impl::nlms_filter_ff_impl
nlms_filter_ff_impl(bool first_input, int num_taps, float mu, unsigned skip, unsigned decimation, bool adapt, bool bypass, bool reset)
gr::adapt::nlms_filter_ff_impl::set_bypass
void set_bypass(bool bypass) override
gr::adapt::nlms_filter_ff_impl::set_mu
void set_mu(float mu) override
gr::adapt::nlms_filter_ff_impl::get_mu
float get_mu() const override
gr::adapt::nlms_filter_ff_impl::set_skip
void set_skip(unsigned skip) override
gr::adapt::nlms_filter_ff_impl::update_tap
void update_tap(float &tap, const float &in)
gr::adapt::nlms_filter_ff_impl::work
int work(int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
gr::adapt::nlms_filter_ff_impl::~nlms_filter_ff_impl
~nlms_filter_ff_impl()=default
gr::adapt::nlms_filter_ff_impl::set_taps
void set_taps(const std::vector< float > &new_taps) override
gr::adapt::nlms_filter_ff_impl::get_skip
unsigned get_skip() const override
gr::adapt::nlms_filter_ff_impl::error
float error(const float &desired, const float &out)
gr::adapt::nlms_filter_ff_impl::get_adapt
bool get_adapt() const override
gr::adapt::nlms_filter_ff_impl::get_reset
bool get_reset() const override
gr::adapt::nlms_filter_ff_impl::get_taps
const std::vector< float > & get_taps() override
gr::adapt::nlms_filter_ff
Normalized Least Mean Squares Adaptive Filter (float in/out)
Definition: nlms_filter_ff.h:38
config.h
gr
Definition: iqrd_rls_filter_cc.h:28
nlms_filter_ff.h