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/* -*- c++ -*- */
/*
* Copyright 2013 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_SELECTIVE_FADING_MODEL2_IMPL_H
#define INCLUDED_CHANNELS_SELECTIVE_FADING_MODEL2_IMPL_H
#include <gnuradio/sync_block.h>
#include <gnuradio/channels/selective_fading_model2.h>
#include "flat_fader_impl.h"
//#include <iostream>
#include <boost/format.hpp>
#include <boost/random.hpp>
#include <gnuradio/fxpt.h>
#include <sincostable.h>
namespace gr {
namespace channels {
class CHANNELS_API selective_fading_model2_impl : public selective_fading_model2
{
private:
std::vector<gr::channels::flat_fader_impl*> d_faders;
std::vector<float> d_delays;
std::vector<float> d_delays_orig;
std::vector<float> d_delays_std;
std::vector<float> d_delays_maxdev;
std::vector<float> d_mags;
sincostable d_sintable;
boost::mt19937 seed_1;
boost::normal_distribution<> dist_1; // U(-pi,pi)
boost::variate_generator<boost::mt19937&, boost::normal_distribution<> > rv_1;
public:
selective_fading_model2_impl(unsigned int N, float fDTs, bool LOS, float K, int seed, std::vector<float> delays, std::vector<float> delay_std,
std::vector<float> delay_maxdev, std::vector<float> mags, int ntaps);
~selective_fading_model2_impl();
void setup_rpc();
int work (int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
std::vector<gr_complex> d_taps;
virtual float fDTs(){ return d_faders[0]->d_fDTs; }
virtual float K(){ return d_faders[0]->d_K; }
virtual float step(){ return d_faders[0]->d_step; }
virtual void set_fDTs(float fDTs){
BOOST_FOREACH( gr::channels::flat_fader_impl* fader, d_faders )
{ fader->d_fDTs = fDTs; fader->d_step = powf(0.00125*fDTs, 1.1); }
}
virtual void set_K(float K){
BOOST_FOREACH( gr::channels::flat_fader_impl* fader, d_faders )
{ fader->d_K = K; fader->scale_los = sqrtf(fader->d_K)/sqrtf(fader->d_K+1); fader->scale_nlos = (1/sqrtf(fader->d_K+1)); }
}
virtual void set_step(float step){
BOOST_FOREACH( gr::channels::flat_fader_impl* fader, d_faders )
{ fader->d_step = step; }
}
};
} /* namespace channels */
} /* namespace gr */
#endif /* INCLUDED_CHANNELS_SELECTIVE_FADING_MODEL2_IMPL_H */
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