mirror of https://github.com/gnss-sdr/gnss-sdr
98 lines
2.4 KiB
C++
98 lines
2.4 KiB
C++
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/**
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* Copyright notice
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*/
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/**
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* Author: Javier Arribas, 2011. jarribas(at)cttc.es
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*/
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#ifndef GPS_L1_CA_TELEMETRY_DECODER_CC_H
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#define GPS_L1_CA_TELEMETRY_DECODER_CC_H
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#include <fstream>
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#include <gnuradio/gr_block.h>
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//#include <gnuradio/gr_sync_block.h>
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#include <gnuradio/gr_msg_queue.h>
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#include <bitset>
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#include "GPS_L1_CA.h"
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#include "gps_telemetry.h"
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#include "gps_l1_ca_subframe_fsm.h"
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#include "concurrent_queue.h"
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class gps_l1_ca_telemetry_decoder_cc;
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typedef boost::shared_ptr<gps_l1_ca_telemetry_decoder_cc> gps_l1_ca_telemetry_decoder_cc_sptr;
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gps_l1_ca_telemetry_decoder_cc_sptr
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gps_l1_ca_make_telemetry_decoder_cc(unsigned int satellite, long if_freq, long fs_in, unsigned
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int vector_length, gr_msg_queue_sptr queue, bool dump);
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class gps_l1_ca_telemetry_decoder_cc : public gr_block {
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private:
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friend gps_l1_ca_telemetry_decoder_cc_sptr
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gps_l1_ca_make_telemetry_decoder_cc(unsigned int satellite, long if_freq, long fs_in,unsigned
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int vector_length, gr_msg_queue_sptr queue, bool dump);
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gps_l1_ca_telemetry_decoder_cc(unsigned int satellite, long if_freq, long fs_in,unsigned
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int vector_length, gr_msg_queue_sptr queue, bool dump);
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// constants
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unsigned short int d_preambles_bits[8];
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// class private vars
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signed int *d_preambles_symbols;
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unsigned int d_samples_per_bit;
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long unsigned int d_sample_counter;
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long unsigned int d_preamble_index;
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unsigned int d_stat;
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bool d_flag_frame_sync;
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// symbols
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int d_symbol_accumulator;
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short int d_symbol_accumulator_counter;
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//bits and frame
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unsigned short int d_frame_bit_index;
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unsigned int d_GPS_frame_4bytes;
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unsigned int d_prev_GPS_frame_4bytes;
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bool d_flag_parity;
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int d_word_number;
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// navigation message vars
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gps_navigation_message d_nav;
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GpsL1CaSubframeFsm d_GPS_FSM;
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gr_msg_queue_sptr d_queue;
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unsigned int d_vector_length;
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bool d_dump;
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int d_satellite;
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int d_channel;
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std::string d_dump_filename;
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std::ofstream d_dump_file;
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public:
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~gps_l1_ca_telemetry_decoder_cc();
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void set_satellite(int satellite);
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void set_channel(int channel);
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void set_navigation_queue(concurrent_queue<gps_navigation_message> *nav_queue){d_GPS_FSM.d_nav_queue=nav_queue;}
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int general_work (int noutput_items, gr_vector_int &ninput_items,
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gr_vector_const_void_star &input_items, gr_vector_void_star &output_items);
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void forecast (int noutput_items, gr_vector_int &ninput_items_required);
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};
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#endif
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