/*! * \file Galileo_CNAV.h * \brief Galileo CNAV mesage constants. Data from: * Galileo High Accuracy Service E6-B Signal-In-Space Message Specification v1.2 * (April 2020). * \author Carles Fernandez-Prades, 2020. cfernandez(at)cttc.es * * * ----------------------------------------------------------------------------- * * GNSS-SDR is a Global Navigation Satellite System software-defined receiver. * This file is part of GNSS-SDR. * * Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors) * SPDX-License-Identifier: GPL-3.0-or-later * * ----------------------------------------------------------------------------- */ #ifndef GNSS_SDR_GALILEO_CNAV_H #define GNSS_SDR_GALILEO_CNAV_H #include #include #include /** \addtogroup Core * \{ */ /** \addtogroup System_Parameters * \{ */ // Galileo CNAV message structure constexpr int32_t GALILEO_CNAV_SYMBOLS_PER_PAGE = 1000; //!< Total numer of symbols per HAS page including the sync pattern constexpr int32_t GALILEO_CNAV_PREAMBLE_PERIOD_SYMBOLS = 1000; constexpr int32_t GALILEO_CNAV_PAGE_MS = 1; //!< Duration in ms of a CNAV page constexpr int32_t GALILEO_CNAV_INTERLEAVER_ROWS = 8; constexpr int32_t GALILEO_CNAV_INTERLEAVER_COLS = 123; constexpr int32_t GALILEO_CNAV_TELEMETRY_RATE_BITS_SECOND = 1000; // bps constexpr int32_t GALILEO_CNAV_HAS_PAGE_DATA_BITS = 448; constexpr int32_t GALILEO_CNAV_PAGE_RESERVED_BITS = 14; constexpr int32_t GALILEO_CNAV_BITS_FOR_CRC = GALILEO_CNAV_HAS_PAGE_DATA_BITS + GALILEO_CNAV_PAGE_RESERVED_BITS; // 462 constexpr int32_t GALILEO_CNAV_BYTES_FOR_CRC = 58; constexpr int32_t GALILEO_CNAV_CRC_LENGTH = 24; constexpr int32_t GALILEO_CNAV_MESSAGE_BITS_PER_PAGE = 424; constexpr int32_t GALILEO_CNAV_PAGE_HEADER_BITS = 24; constexpr int32_t GALILEO_CNAV_PREAMBLE_LENGTH_BITS = 16; constexpr int32_t GALILEO_CNAV_MAX_NUMBER_SYMBOLS_ENCODED_BLOCK = 255; constexpr int32_t GALILEO_CNAV_MT1_HEADER_BITS = 32; constexpr int32_t GALILEO_CNAV_OCTETS_IN_SUBPAGE = 53; constexpr int32_t GALILEO_CNAV_INFORMATION_VECTOR_LENGTH = 32; constexpr char GALILEO_CNAV_PREAMBLE[17] = "1011011101110000"; // Galileo HAS message field lengths constexpr size_t HAS_MSG_NSYS_LENGTH = 4; constexpr size_t HAS_MSG_ID_MASK_LENGTH = 4; constexpr size_t HAS_MSG_SATELLITE_MASK_LENGTH = 40; constexpr size_t HAS_MSG_SIGNAL_MASK_LENGTH = 16; constexpr size_t HAS_MSG_NAV_MESSAGE_LENGTH = 3; constexpr size_t HAS_MSG_MASK_RESERVED_LENGTH = 6; constexpr size_t HAS_MSG_VALIDITY_INDEX_LENGTH = 4; constexpr size_t HAS_MSG_IOD_GPS_LENGTH = 8; constexpr size_t HAS_MSG_IOD_GAL_LENGTH = 10; constexpr size_t HAS_MSG_DELTA_RADIAL_LENGTH = 14; constexpr size_t HAS_MSG_DELTA_ALONG_TRACK_LENGTH = 12; constexpr size_t HAS_MSG_DELTA_CROSS_TRACK_LENGTH = 12; constexpr size_t HAS_MSG_DELTA_CLOCK_C0_MULTIPLIER_LENGTH = 2; constexpr size_t HAS_MSG_DELTA_CLOCK_C0_LENGTH = 14; constexpr size_t HAS_MSG_NSYSPRIME_LENGTH = 4; constexpr size_t HAS_MSG_ID_CLOCK_SUBSET_LENGTH = 4; constexpr size_t HAS_MSG_DELTA_CLOCK_MULTIPLIER_SUBSET_LENGTH = 2; constexpr size_t HAS_MSG_DELTA_CLOCK_C0_SUBSET_LENGTH = 13; constexpr size_t HAS_MSG_CODE_BIAS_LENGTH = 11; constexpr size_t HAS_MSG_PHASE_BIAS_LENGTH = 11; constexpr size_t HAS_MSG_PHASE_DISCONTINUITY_INDICATOR_LENGTH = 2; constexpr size_t HAS_MSG_URA_LENGTH = 2; constexpr int32_t HAS_MSG_NUMBER_MASK_IDS = 32; constexpr int32_t HAS_MSG_NUMBER_GNSS_IDS = 16; constexpr int32_t HAS_MSG_NUMBER_MESSAGE_IDS = 32; constexpr int32_t HAS_MSG_NUMBER_SATELLITE_IDS = 40; constexpr int32_t HAS_MSG_NUMBER_SIGNAL_MASKS = 16; constexpr float HAS_MSG_DELTA_RADIAL_SCALE_FACTOR = 0.0025; constexpr float HAS_MSG_DELTA_ALONG_TRACK_SCALE_FACTOR = 0.008; constexpr float HAS_MSG_DELTA_CROSS_TRACK_SCALE_FACTOR = 0.008; constexpr float HAS_MSG_DELTA_CLOCK_SCALE_FACTOR = 0.0025; constexpr float HAS_MSG_CODE_BIAS_SCALE_FACTOR = 0.02; constexpr float HAS_MSG_PHASE_BIAS_SCALE_FACTOR = 0.01; constexpr uint16_t HAS_MSG_NUMBER_MAX_TOH = 3599; constexpr uint8_t HAS_MSG_GPS_SYSTEM = 0; // Table 8 ICD v1.2 constexpr uint8_t HAS_MSG_GALILEO_SYSTEM = 2; // Table 8 ICD v1.2 const std::pair GALILEO_HAS_STATUS({1, 2}); const std::pair GALILEO_HAS_RESERVED({3, 2}); const std::pair GALILEO_HAS_MESSAGE_TYPE({5, 2}); const std::pair GALILEO_HAS_MESSAGE_ID({7, 5}); const std::pair GALILEO_HAS_MESSAGE_SIZE({12, 5}); const std::pair GALILEO_HAS_MESSAGE_PAGE_ID({17, 8}); const std::pair GALILEO_MT1_HEADER_TOH({1, 12}); const std::pair GALILEO_MT1_HEADER_MASK_FLAG({13, 1}); const std::pair GALILEO_MT1_HEADER_ORBIT_CORRECTION_FLAG({14, 1}); const std::pair GALILEO_MT1_HEADER_CLOCK_FULLSET_FLAG({15, 1}); const std::pair GALILEO_MT1_HEADER_CLOCK_SUBSET_FLAG({16, 1}); const std::pair GALILEO_MT1_HEADER_CODE_BIAS_FLAG({17, 1}); const std::pair GALILEO_MT1_HEADER_PHASE_BIAS_FLAG({18, 1}); const std::pair GALILEO_MT1_HEADER_URA_FLAG({19, 1}); const std::pair GALILEO_MT1_HEADER_MASK_ID({23, 5}); const std::pair GALILEO_MT1_HEADER_IOD_ID({28, 5}); /** \} */ /** \} */ #endif // GNSS_SDR_GALILEO_CNAV_H