67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
/*
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# Copyright 2010 Nick Foster
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#
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# This file is part of gr-air-modes
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#
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# gr-air-modes is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# gr-air-modes is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with gr-air-modes; see the file COPYING. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street,
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# Boston, MA 02110-1301, USA.
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#
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*/
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#ifndef INCLUDED_AIR_MODES_PREAMBLE_H
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#define INCLUDED_AIR_MODES_PREAMBLE_H
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#include <gnuradio/block.h>
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#include <air_modes_api.h>
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class air_modes_preamble;
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typedef boost::shared_ptr<air_modes_preamble> air_modes_preamble_sptr;
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AIR_MODES_API air_modes_preamble_sptr air_make_modes_preamble(int channel_rate, float threshold_db);
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/*!
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* \brief mode select preamble detection
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* \ingroup block
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*/
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class AIR_MODES_API air_modes_preamble : public gr::block
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{
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private:
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friend air_modes_preamble_sptr air_make_modes_preamble(int channel_rate, float threshold_db);
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air_modes_preamble(int channel_rate, float threshold_db);
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int d_check_width;
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int d_chip_rate;
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float d_preamble_length_us;
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int d_samples_per_chip;
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int d_samples_per_symbol;
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float d_threshold_db;
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float d_threshold;
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pmt::pmt_t d_me, d_key;
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gr::tag_t d_timestamp;
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double d_secs_per_sample;
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public:
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int general_work (int noutput_items,
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gr_vector_int &ninput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items);
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void set_rate(int channel_rate);
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void set_threshold(float threshold_db);
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float get_threshold(void);
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};
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#endif /* INCLUDED_AIR_MODES_PREAMBLE_H */
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