diff options
Diffstat (limited to 'gr-digital/include/digital_ofdm_equalizer_base.h')
| -rw-r--r-- | gr-digital/include/digital_ofdm_equalizer_base.h | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/gr-digital/include/digital_ofdm_equalizer_base.h b/gr-digital/include/digital_ofdm_equalizer_base.h deleted file mode 100644 index 8665395540..0000000000 --- a/gr-digital/include/digital_ofdm_equalizer_base.h +++ /dev/null @@ -1,102 +0,0 @@ -/* -*- c++ -*- */ -/* Copyright 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_DIGITAL_OFDM_EQUALIZER_BASE_H -#define INCLUDED_DIGITAL_OFDM_EQUALIZER_BASE_H - -#include <digital/api.h> -#include <gr_tags.h> -#include <gr_complex.h> -#include <boost/enable_shared_from_this.hpp> - -class digital_ofdm_equalizer_base; -typedef boost::shared_ptr<digital_ofdm_equalizer_base> digital_ofdm_equalizer_base_sptr; - -class digital_ofdm_equalizer_1d_pilots; -typedef boost::shared_ptr<digital_ofdm_equalizer_1d_pilots> digital_ofdm_equalizer_1d_pilots_sptr; - -/* \brief Base class for implementation details of frequency-domain OFDM equalizers. - * \ingroup ofdm_blk - * \ingroup eq_blk - * - */ -class DIGITAL_API digital_ofdm_equalizer_base : public boost::enable_shared_from_this<digital_ofdm_equalizer_base> -{ - protected: - int d_fft_len; - int d_carr_offset; - - public: - digital_ofdm_equalizer_base(int fft_len); - ~digital_ofdm_equalizer_base(); - - virtual void reset() = 0; - void set_carrier_offset(int offset) { d_carr_offset = offset; }; - virtual void equalize( - gr_complex *frame, - int n_sym, - const std::vector<gr_complex> &initial_taps = std::vector<gr_complex>(), - const std::vector<gr_tag_t> &tags = std::vector<gr_tag_t>()) = 0; - virtual void get_channel_state(std::vector<gr_complex> &taps) = 0; - int fft_len() { return d_fft_len; }; - digital_ofdm_equalizer_base_sptr base() { return shared_from_this(); }; -}; - - -/* \brief Base class for implementation details of 1-dimensional OFDM FDEs which use pilot tones. - * \ingroup digital - * - */ -class DIGITAL_API digital_ofdm_equalizer_1d_pilots : public digital_ofdm_equalizer_base -{ - protected: - //! If \p d_occupied_carriers[k][l] is true, symbol k, carrier l is carrying data. - // (this is a different format than occupied_carriers!) - std::vector<bool> d_occupied_carriers; - //! If \p d_pilot_carriers[k][l] is true, symbol k, carrier l is carrying data. - // (this is a different format than pilot_carriers!) - std::vector<std::vector<bool> > d_pilot_carriers; - //! If \p d_pilot_carriers[k][l] is true, d_pilot_symbols[k][l] is its tx'd value. - // (this is a different format than pilot_symbols!) - std::vector<std::vector<gr_complex> > d_pilot_symbols; - //! In case the frame doesn't begin with OFDM symbol 0, this is the index of the first symbol - int d_symbols_skipped; - //! The current position in the set of pilot symbols - int d_pilot_carr_set; - //! Vector of length d_fft_len saving the current channel state (on the occupied carriers) - std::vector<gr_complex> d_channel_state; - - public: - digital_ofdm_equalizer_1d_pilots( - int fft_len, - const std::vector<std::vector<int> > &occupied_carriers, - const std::vector<std::vector<int> > &pilot_carriers, - const std::vector<std::vector<gr_complex> > &pilot_symbols, - int symbols_skipped, - bool input_is_shifted); - ~digital_ofdm_equalizer_1d_pilots(); - - void reset(); - void get_channel_state(std::vector<gr_complex> &taps); -}; - -#endif /* INCLUDED_DIGITAL_OFDM_EQUALIZER_BASE_H */ - |