/* -*- c++ -*- */ /* * Copyright 2013 Free Software Foundation, Inc. * * This file is part of GNU Radio * * SPDX-License-Identifier: GPL-3.0-or-later * */ #ifndef INCLUDED_CHANNELS_SELECTIVE_FADING_MODEL_IMPL_H #define INCLUDED_CHANNELS_SELECTIVE_FADING_MODEL_IMPL_H #include "flat_fader_impl.h" #include <gnuradio/channels/selective_fading_model.h> #include <gnuradio/sync_block.h> #include "sincostable.h" #include <gnuradio/fxpt.h> namespace gr { namespace channels { class CHANNELS_API selective_fading_model_impl : public selective_fading_model { private: std::vector<gr::channels::flat_fader_impl*> d_faders; std::vector<float> d_delays; std::vector<float> d_mags; sincostable d_sintable; public: selective_fading_model_impl(unsigned int N, float fDTs, bool LOS, float K, int seed, std::vector<float> delays, std::vector<float> mags, int ntaps); ~selective_fading_model_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) { for (const auto& fader : d_faders) { fader->d_fDTs = fDTs; fader->d_step = powf(0.00125 * fDTs, 1.1); } } virtual void set_K(float K) { for (const auto& 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) { for (const auto& fader : d_faders) { fader->d_step = step; } } }; } /* namespace channels */ } /* namespace gr */ #endif /* INCLUDED_CHANNELS_SELECTIVE_FADING_MODEL_IMPL_H */