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gnss-sdr/src/core/system_parameters/GPS_L5.h

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/*!
* \file GPS_L5.h
* \brief Defines system parameters for GPS L5 signal
* \author Javier Arribas, 2017. jarribas(at)cttc.es
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR 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 of the License, or
* (at your option) any later version.
*
* GNSS-SDR 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 GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_GPS_L5_H_
#define GNSS_SDR_GPS_L5_H_
#include "gnss_frequencies.h"
#include "GPS_CNAV.h"
#include "MATH_CONSTANTS.h"
#include <cstdint>
#include <string>
// Physical constants
const double GPS_L5_C_m_s = 299792458.0; //!< The speed of light, [m/s]
const double GPS_L5_C_m_ms = 299792.4580; //!< The speed of light, [m/ms]
const double GPS_L5_PI = 3.1415926535898; //!< Pi as defined in IS-GPS-200E
const double GPS_L5_TWO_PI = 6.283185307179586; //!< 2Pi as defined in IS-GPS-200E
const double GPS_L5_OMEGA_EARTH_DOT = 7.2921151467e-5; //!< Earth rotation rate, [rad/s]
const double GPS_L5_GM = 3.986005e14; //!< Universal gravitational constant times the mass of the Earth, [m^3/s^2]
const double GPS_L5_F = -4.442807633e-10; //!< Constant, [s/(m)^(1/2)]
// carrier and code frequencies
const double GPS_L5_FREQ_HZ = FREQ5; //!< L5 [Hz]
const double GPS_L5i_CODE_RATE_HZ = 10.23e6; //!< GPS L5i code rate [chips/s]
const int32_t GPS_L5i_CODE_LENGTH_CHIPS = 10230; //!< GPS L5i code length [chips]
const double GPS_L5i_PERIOD = 0.001; //!< GPS L5 code period [seconds]
const int32_t GPS_L5i_PERIOD_MS = 1; //!< GPS L5 code period [ms]
const double GPS_L5i_SYMBOL_PERIOD = 0.01; //!< GPS L5 symbol period [seconds]
const int32_t GPS_L5i_SYMBOL_PERIOD_MS = 10; //!< GPS L5 symbol period [ms]
const double GPS_L5q_CODE_RATE_HZ = 10.23e6; //!< GPS L5i code rate [chips/s]
const int32_t GPS_L5q_CODE_LENGTH_CHIPS = 10230; //!< GPS L5i code length [chips]
const double GPS_L5q_PERIOD = 0.001; //!< GPS L5 code period [seconds]
const int32_t GPS_L5_HISTORY_DEEP = 5;
//optimum parameters
const uint32_t GPS_L5_OPT_ACQ_FS_HZ = 10000000; //!< Sampling frequncy that maximizes the acquisition SNR while using a non-multiple of chip rate
const int32_t GPS_L5i_INIT_REG[210] =
{266, 365, 804, 1138,
1509, 1559, 1756, 2084,
2170, 2303, 2527, 2687,
2930, 3471, 3940, 4132,
4332, 4924, 5343, 5443,
5641, 5816, 5898, 5918,
5955, 6243, 6345, 6477,
6518, 6875, 7168, 7187,
7329, 7577, 7720, 7777,
8057, 5358, 3550, 3412,
819,
4608, 3698, 962, 3001,
4441, 4937, 3717, 4730,
7291, 2279, 7613, 5723,
7030, 1475, 2593, 2904,
2056, 2757, 3756, 6205,
5053, 6437,
7789, 2311, 7432, 5155,
1593, 5841, 5014, 1545,
3016, 4875, 2119, 229,
7634, 1406, 4506, 1819,
7580, 5446, 6053, 7958,
5267, 2956, 3544, 1277,
2996, 1758, 3360, 2718,
3754, 7440, 2781, 6756,
7314, 208, 5252, 696,
527, 1399, 5879, 6868,
217, 7681, 3788, 1337,
2424, 4243, 5686, 1955,
4791, 492, 1518, 6566,
5349, 506, 113, 1953,
2797, 934, 3023, 3632,
1330, 4909, 4867, 1183,
3990, 6217, 1224, 1733,
2319, 3928, 2380, 841,
5049, 7027, 1197, 7208,
8000, 152, 6762, 3745,
4723, 5502, 4796, 123,
8142, 5091, 7875, 330,
5272, 4912, 374, 2045,
6616, 6321, 7605, 2570,
2419, 1234, 1922, 4317,
5110, 825, 958, 1089,
7813, 6058, 7703, 6702,
1714, 6371, 2281, 1986,
6282, 3201, 3760, 1056,
6233, 1150, 2823, 6250,
645, 2401, 1639, 2946,
7091, 923, 7045, 6493,
1706, 5836, 926, 6086,
950, 5905, 3240, 6675,
3197, 1555, 3589, 4555,
5671, 6948, 4664, 2086,
5950, 5521, 1515};
const int32_t GPS_L5q_INIT_REG[210] =
{
1701, 323, 5292, 2020,
5429, 7136, 1041, 5947,
4315, 148, 535, 1939,
5206, 5910, 3595, 5135,
6082, 6990, 3546, 1523,
4548, 4484, 1893, 3961,
7106, 5299, 4660, 276,
4389, 3783, 1591, 1601,
749, 1387, 1661, 3210,
708,
4226, 5604, 6375, 3056,
1772, 3662, 4401, 5218,
2838, 6913, 1685, 1194,
6963, 5001, 6694, 991,
7489, 2441, 639, 2097,
2498, 6470, 2399, 242,
3768, 1186,
5246, 4259, 5907, 3870,
3262, 7387, 3069, 2999,
7993, 7849, 4157, 5031,
5986, 4833, 5739, 7846,
898, 2022, 7446, 6404,
155, 7862, 7795, 6121,
4840, 6585, 429, 6020,
200, 1664, 1499, 7298,
1305, 7323, 7544, 4438,
2485, 3387, 7319, 1853,
5781, 1874, 7555, 2132,
6441, 6722, 1192, 2588,
2188, 297, 1540, 4138,
5231, 4789, 659, 871,
6837, 1393, 7383, 611,
4920, 5416, 1611, 2474,
118, 1382, 1092, 7950,
7223, 1769, 4721, 1252,
5147, 2165, 7897, 4054,
3498, 6571, 2858, 8126,
7017, 1901, 181, 1114,
5195, 7479, 4186, 3904,
7128, 1396, 4513, 5967,
2580, 2575, 7961, 2598,
4508, 2090, 3685, 7748,
684, 913, 5558, 2894,
5858, 6432, 3813, 3573,
7523, 5280, 3376, 7424,
2918, 5793, 1747, 7079,
2921, 2490, 4119, 3373,
977, 681, 4273, 5419,
5626, 1266, 5804, 2414,
6444, 4757, 427, 5452,
5182, 6606, 6531, 4268,
3115, 6835, 862, 4856,
2765, 37, 1943, 7977,
2512, 4451, 4071};
const int32_t GPS_L5_CNAV_DATA_PAGE_BITS = 300; //!< GPS L5 CNAV page length, including preamble and CRC [bits]
const int32_t GPS_L5_SYMBOLS_PER_BIT = 2;
const int32_t GPS_L5_SAMPLES_PER_SYMBOL = 10;
const int32_t GPS_L5_CNAV_DATA_PAGE_SYMBOLS = 600;
const int32_t GPS_L5_CNAV_DATA_PAGE_DURATION_S = 6;
const int32_t GPS_L5i_NH_CODE_LENGTH = 10;
const int32_t GPS_L5i_NH_CODE[10] = {0, 0, 0, 0, 1, 1, 0, 1, 0, 1};
const std::string GPS_L5i_NH_CODE_STR = "0000110101";
const int32_t GPS_L5q_NH_CODE_LENGTH = 20;
const int32_t GPS_L5q_NH_CODE[20] = {0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0};
const std::string GPS_L5q_NH_CODE_STR = "00000100110101001110";
#endif /* GNSS_SDR_GPS_L5_H_ */
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