mirror of https://github.com/gnss-sdr/gnss-sdr
182 lines
8.8 KiB
C++
182 lines
8.8 KiB
C++
/*!
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* \file Galileo_CNAV.h
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* \brief Galileo CNAV mesage constants. Data from:
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* Galileo High Accuracy Service Signal-In-Space Interface Control Document
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* (HAS SIS ICD) Issue 1.0, May 2022
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* \author Carles Fernandez-Prades, 2020-2022. cfernandez(at)cttc.es
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*
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2022 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#ifndef GNSS_SDR_GALILEO_CNAV_H
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#define GNSS_SDR_GALILEO_CNAV_H
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#include <cstddef>
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#include <cstdint>
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#include <string>
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#include <unordered_map>
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#include <utility>
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/** \addtogroup Core
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* \{ */
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/** \addtogroup System_Parameters
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* \{ */
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// Galileo HAS message field lengths
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constexpr size_t HAS_MSG_NSYS_LENGTH = 4; // HAS SIS ICD 1.0 Table 15
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constexpr size_t HAS_MSG_ID_MASK_LENGTH = 4; // HAS SIS ICD 1.0 Table 16
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constexpr size_t HAS_MSG_SATELLITE_MASK_LENGTH = 40; // HAS SIS ICD 1.0 Table 16
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constexpr size_t HAS_MSG_SIGNAL_MASK_LENGTH = 16; // HAS SIS ICD 1.0 Table 16
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constexpr size_t HAS_MSG_NAV_MESSAGE_LENGTH = 3; // HAS SIS ICD 1.0 Table 16
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constexpr size_t HAS_MSG_MASK_RESERVED_LENGTH = 6; // HAS SIS ICD 1.0 Table 15
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constexpr size_t HAS_MSG_VALIDITY_INDEX_LENGTH = 4; // HAS SIS ICD 1.0 Table 22
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constexpr size_t HAS_MSG_IOD_GPS_LENGTH = 8; // HAS SIS ICD 1.0 Table 26
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constexpr size_t HAS_MSG_IOD_GAL_LENGTH = 10; // HAS SIS ICD 1.0 Table 26
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constexpr size_t HAS_MSG_DELTA_RADIAL_LENGTH = 13; // HAS SIS ICD 1.0 Table 25
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constexpr size_t HAS_MSG_DELTA_IN_TRACK_LENGTH = 12; // HAS SIS ICD 1.0 Table 25
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constexpr size_t HAS_MSG_DELTA_CROSS_TRACK_LENGTH = 12; // HAS SIS ICD 1.0 Table 25
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constexpr size_t HAS_MSG_DELTA_CLOCK_MULTIPLIER_LENGTH = 2; // HAS SIS ICD 1.0 Table 28
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constexpr size_t HAS_MSG_DELTA_CLOCK_CORRECTION_LENGTH = 13; // HAS SIS ICD 1.0 Table 31
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constexpr size_t HAS_MSG_NSYS_SUB_LENGTH = 4; // HAS SIS ICD 1.0 Table 32
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constexpr size_t HAS_MSG_ID_CLOCK_SUBSET_LENGTH = 4; // HAS SIS ICD 1.0 Table 32
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constexpr size_t HAS_MSG_DELTA_CLOCK_MULTIPLIER_SUBSET_LENGTH = 2; // HAS SIS ICD 1.0 Table 33
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constexpr size_t HAS_MSG_DELTA_CLOCK_CORRECTION_SUBSET_LENGTH = 13; // HAS SIS ICD 1.0 Table 34
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constexpr size_t HAS_MSG_CODE_BIAS_LENGTH = 11; // HAS SIS ICD 1.0 Table 37
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constexpr size_t HAS_MSG_PHASE_BIAS_LENGTH = 11; // HAS SIS ICD 1.0 Table 40
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constexpr size_t HAS_MSG_PHASE_DISCONTINUITY_INDICATOR_LENGTH = 2; // HAS SIS ICD 1.0 Table 40
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constexpr uint64_t MAX_SECONDS_REMEMBERING_MID = 150; // HAS SIS ICD 1.0 Section 6.4.1 HAS Message Completion Time-out
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// Galileo CNAV message structure
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constexpr int32_t GALILEO_CNAV_SYMBOLS_PER_PAGE = 1000; // Total numer of symbols per HAS page including the sync pattern
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constexpr int32_t GALILEO_CNAV_PREAMBLE_PERIOD_SYMBOLS = 1000;
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constexpr int32_t GALILEO_CNAV_PAGE_MS = 1; // Duration in ms of a CNAV page
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constexpr int32_t GALILEO_CNAV_INTERLEAVER_ROWS = 8; // HAS SIS ICD 1.0 Table 4
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constexpr int32_t GALILEO_CNAV_INTERLEAVER_COLS = 123; // HAS SIS ICD 1.0 Table 4
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constexpr int32_t GALILEO_CNAV_TELEMETRY_RATE_BITS_SECOND = 1000; // bps
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constexpr int32_t GALILEO_CNAV_HAS_PAGE_DATA_BITS = 448; // HAS SIS ICD 1.0 Table 5
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constexpr int32_t GALILEO_CNAV_PAGE_RESERVED_BITS = 14; // HAS SIS ICD 1.0 Table 5
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constexpr int32_t GALILEO_CNAV_BYTES_FOR_CRC = 58; // ceil(462 / 8)
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constexpr int32_t GALILEO_CNAV_CRC_LENGTH = 24; // HAS SIS ICD 1.0 Table 5
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constexpr int32_t GALILEO_CNAV_MESSAGE_BITS_PER_PAGE = 424; // HAS SIS ICD 1.0 Table 6
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constexpr int32_t GALILEO_CNAV_PAGE_HEADER_BITS = 24; // HAS SIS ICD 1.0 Table 6
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constexpr int32_t GALILEO_CNAV_PREAMBLE_LENGTH_BITS = 16; // HAS SIS ICD 1.0 Table 5
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constexpr int32_t GALILEO_CNAV_MAX_NUMBER_SYMBOLS_ENCODED_BLOCK = 255; // HAS SIS ICD 1.0 Section 6.2 Reed-Solomon Code
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constexpr int32_t GALILEO_CNAV_MT1_HEADER_BITS = 32; // HAS SIS ICD 1.0 Table 11
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constexpr int32_t GALILEO_CNAV_OCTETS_IN_SUBPAGE = 53; // HAS SIS ICD 1.0 Section 6.3 HAS Encoding and Transmission
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constexpr int32_t GALILEO_CNAV_INFORMATION_VECTOR_LENGTH = 32; // HAS SIS ICD 1.0 Section 6.2 Reed-Solomon Code
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constexpr int32_t GALILEO_CNAV_BITS_FOR_CRC = GALILEO_CNAV_HAS_PAGE_DATA_BITS + GALILEO_CNAV_PAGE_RESERVED_BITS; // 462
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constexpr int32_t HAS_MSG_NUMBER_MASK_IDS = 32; // HAS SIS ICD 1.0 Table 13
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constexpr int32_t HAS_MSG_NUMBER_GNSS_IDS = 16; // HAS SIS ICD 1.0 Table 18
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constexpr int32_t HAS_MSG_NUMBER_MESSAGE_IDS = 32; // HAS SIS ICD 1.0 Table 8
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constexpr int32_t HAS_MSG_NUMBER_SATELLITE_IDS = 40; // HAS SIS ICD 1.0 Table 19
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constexpr int32_t HAS_MSG_NUMBER_SIGNAL_MASKS = 16; // HAS SIS ICD 1.0 Table 20
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constexpr float HAS_MSG_DELTA_RADIAL_SCALE_FACTOR = 0.0025; // HAS SIS ICD 1.0 Table 25
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constexpr float HAS_MSG_DELTA_IN_TRACK_SCALE_FACTOR = 0.008; // HAS SIS ICD 1.0 Table 25
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constexpr float HAS_MSG_DELTA_CROSS_TRACK_SCALE_FACTOR = 0.008; // HAS SIS ICD 1.0 Table 25
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constexpr float HAS_MSG_DELTA_CLOCK_SCALE_FACTOR = 0.0025; // HAS SIS ICD 1.0 Table 31
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constexpr float HAS_MSG_CODE_BIAS_SCALE_FACTOR = 0.02; // HAS SIS ICD 1.0 Table 37
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constexpr float HAS_MSG_PHASE_BIAS_SCALE_FACTOR = 0.01; // HAS SIS ICD 1.0 Table 40
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constexpr uint16_t HAS_MSG_NUMBER_MAX_TOH = 3599; // HAS SIS ICD 1.0 Table 13
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constexpr uint8_t HAS_MSG_GPS_SYSTEM = 0; // HAS SIS ICD 1.0 Table 18
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constexpr uint8_t HAS_MSG_GALILEO_SYSTEM = 2; // HAS SIS ICD 1.0 Table 18
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constexpr uint8_t HAS_MSG_WRONG_SYSTEM = 255;
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constexpr char GALILEO_CNAV_PREAMBLE[17] = "1011011101110000"; // HAS SIS ICD 1.0 Section 2.3.1
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// HAS SIS ICD 1.0 Table 7
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const std::pair<int32_t, int32_t> GALILEO_HAS_STATUS({1, 2});
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const std::pair<int32_t, int32_t> GALILEO_HAS_RESERVED({3, 2});
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const std::pair<int32_t, int32_t> GALILEO_HAS_MESSAGE_TYPE({5, 2});
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const std::pair<int32_t, int32_t> GALILEO_HAS_MESSAGE_ID({7, 5});
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const std::pair<int32_t, int32_t> GALILEO_HAS_MESSAGE_SIZE({12, 5});
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const std::pair<int32_t, int32_t> GALILEO_HAS_MESSAGE_PAGE_ID({17, 8});
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// HAS SIS ICD 1.0 Table 12
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_TOH({1, 12});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_MASK_FLAG({13, 1});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_ORBIT_CORRECTION_FLAG({14, 1});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_CLOCK_FULLSET_FLAG({15, 1});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_CLOCK_SUBSET_FLAG({16, 1});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_CODE_BIAS_FLAG({17, 1});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_PHASE_BIAS_FLAG({18, 1});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_RESERVED({19, 4});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_MASK_ID({23, 5});
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const std::pair<int32_t, int32_t> GALILEO_MT1_HEADER_IOD_SET_ID({28, 5});
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// HAS SIS ICD v1.0 Table 20
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const std::unordered_map<uint8_t, std::unordered_map<uint8_t, std::string>> HAS_SIGNAL_INDEX_TABLE = {
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{0, {
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{0, "L1 C/A"},
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{1, "Reserved"},
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{2, "Reserved"},
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{3, "L1C(D)"},
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{4, "L1C(P)"},
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{5, "L1C(D+P)"},
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{6, "L2 CM"},
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{7, "L2 CL"},
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{8, "L2 CM+CL"},
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{9, "L2 P"},
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{10, "Reserved"},
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{11, "L5 I"},
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{12, "L5 Q"},
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{13, "L5 I + L5 Q"},
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{14, "Reserved"},
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{15, "Reserved"},
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}},
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{2, {
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{0, "E1-B I/NAV OS"},
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{1, "E1-C"},
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{2, "E1-B + E1-C"},
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{3, "E5a-I F/NAV OS"},
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{4, "E5a-Q"},
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{5, "E5a-I+E5a-Q"},
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{6, "E5b-I I/NAV OS"},
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{7, "E5b-Q"},
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{8, "E5b-I+E5b-Q"},
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{9, "E5-I"},
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{10, "E5-Q"},
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{11, "E5-I + E5-Q"},
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{12, "E6-B C/NAV HAS"},
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{13, "E6-C"},
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{14, "E6-B + E6-C"},
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{15, "Reserved"},
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}}};
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// HAS SIS ICD v1.0 Table 23
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const std::unordered_map<uint8_t, uint16_t> HAS_VALIDITY_INTERVALS = {
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{0, 5},
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{1, 10},
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{2, 15},
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{3, 20},
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{4, 30},
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{5, 60},
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{6, 90},
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{7, 120},
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{8, 180},
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{9, 240},
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{10, 300},
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{11, 600},
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{12, 900},
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{13, 1800},
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{14, 3600}};
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/** \} */
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/** \} */
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#endif // GNSS_SDR_GALILEO_CNAV_H
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