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/* -*- c++ -*- */
/*
* Copyright 2009,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_CHANNELS_CHANNEL_MODEL_IMPL_H
#define INCLUDED_CHANNELS_CHANNEL_MODEL_IMPL_H
#include <gnuradio/top_block.h>
#include <gnuradio/blocks/add_cc.h>
#include <gnuradio/blocks/multiply_cc.h>
#include <gnuradio/analog/sig_source_c.h>
#include <gnuradio/analog/fastnoise_source_c.h>
#include <gnuradio/channels/dynamic_channel_model.h>
#include <gnuradio/channels/selective_fading_model.h>
#include <gnuradio/channels/sro_model.h>
#include <gnuradio/channels/cfo_model.h>
#include <gnuradio/filter/fractional_resampler_cc.h>
#include <gnuradio/filter/fir_filter_ccc.h>
namespace gr {
namespace channels {
class CHANNELS_API dynamic_channel_model_impl : public dynamic_channel_model
{
private:
channels::sro_model::sptr d_sro_model;
channels::cfo_model::sptr d_cfo_model;
channels::selective_fading_model::sptr d_fader;
blocks::add_cc::sptr d_noise_adder;
analog::fastnoise_source_c::sptr d_noise;
public:
dynamic_channel_model_impl( double samp_rate,
double sro_std_dev,
double sro_max_dev,
double cfo_std_dev,
double cfo_max_dev,
unsigned int N,
double doppler_freq,
bool LOS_model,
float K,
std::vector<float> delays,
std::vector<float> mags,
int ntaps_mpath,
double noise_amp,
double noise_seed);
~dynamic_channel_model_impl();
void setup_rpc();
double samp_rate() const { return d_sro_model->samp_rate(); }
double sro_dev_std() const { return d_sro_model->std_dev(); }
double sro_dev_max() const { return d_sro_model->max_dev(); }
double cfo_dev_std() const { return d_cfo_model->std_dev(); }
double cfo_dev_max() const { return d_cfo_model->max_dev(); }
double noise_amp() const { return d_noise->amplitude(); }
double doppler_freq() const { return d_fader->fDTs()*samp_rate(); }
double K() const { return d_fader->K(); }
void set_samp_rate(double sr) {
d_fader->set_fDTs( doppler_freq()/samp_rate() );
d_sro_model->set_samp_rate(sr);
d_cfo_model->set_samp_rate(sr); }
void set_sro_dev_std(double dev) { d_sro_model->set_max_dev(dev); }
void set_sro_dev_max(double dev) { d_sro_model->set_max_dev(dev); }
void set_cfo_dev_std(double dev) { d_cfo_model->set_std_dev(dev); }
void set_cfo_dev_max(double dev) { d_cfo_model->set_max_dev(dev); }
void set_noise_amp(double amp) { d_noise->set_amplitude(amp); }
void set_doppler_freq(double f){ d_fader->set_fDTs(f/samp_rate()); }
void set_K(double K){ d_fader->set_K(K); }
};
} /* namespace channels */
} /* namespace gr */
#endif /* INCLUDED_CHANNELS_CHANNEL_MODEL_IMPL_H */
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