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gnss-sdr/tests/unit-tests/system-parameters/glonass_gnav_ephemeris_test.cc

225 lines
6.9 KiB
C++

/*!
* \file glonass_gnav_ephemeris_test.cc.cc
* \note Code added as part of GSoC 2017 program
* \author Damian Miralles, 2017. dmiralles2009(at)gmail.com
* \see <a href="http://russianspacesystems.ru/wp-content/uploads/2016/08/ICD_GLONASS_eng_v5.1.pdf">GLONASS ICD</a>
*
*
* -----------------------------------------------------------------------------
*
* 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
*
* -----------------------------------------------------------------------------
*/
#include "glonass_gnav_ephemeris.h"
#include "gnss_signal_replica.h"
TEST(GlonassGnavEphemerisTest, ComputeGlonassTime)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2016;
gnav_eph.d_N_T = 367;
boost::posix_time::time_duration t(0, 0, 7560);
boost::gregorian::date d(gnav_eph.d_yr, 1, 1);
boost::gregorian::days d2(gnav_eph.d_N_T);
d = d + d2;
boost::gregorian::date expected_gdate;
boost::posix_time::time_duration expected_gtime;
boost::posix_time::ptime gtime = gnav_eph.compute_GLONASS_time(7560);
expected_gdate = gtime.date();
expected_gtime = gtime.time_of_day();
// Perform assertions of decoded fields
ASSERT_TRUE(expected_gdate.year() - d.year() < FLT_EPSILON);
ASSERT_TRUE(expected_gdate.month() - d.month() < FLT_EPSILON);
ASSERT_TRUE(expected_gdate.day() - d.day() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.hours() - t.hours() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.minutes() - t.minutes() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.seconds() - t.seconds() < FLT_EPSILON);
}
TEST(GlonassGnavEphemerisTest, ComputeGlonassTime2019)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2019;
gnav_eph.d_N_T = 1366;
boost::posix_time::time_duration t(0, 0, 7560);
boost::gregorian::date d(gnav_eph.d_yr, 1, 1);
boost::gregorian::days d2(gnav_eph.d_N_T);
d = d + d2;
boost::gregorian::date expected_gdate;
boost::posix_time::time_duration expected_gtime;
boost::posix_time::ptime gtime = gnav_eph.compute_GLONASS_time(7560);
expected_gdate = gtime.date();
expected_gtime = gtime.time_of_day();
// Perform assertions of decoded fields
ASSERT_TRUE(expected_gdate.year() - d.year() < FLT_EPSILON);
ASSERT_TRUE(expected_gdate.month() - d.month() < FLT_EPSILON);
ASSERT_TRUE(expected_gdate.day() - d.day() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.hours() - t.hours() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.minutes() - t.minutes() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.seconds() - t.seconds() < FLT_EPSILON);
}
TEST(GlonassGnavEphemerisTest, ComputeGlonassTime2020)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2020;
gnav_eph.d_N_T = 62;
boost::posix_time::time_duration t(0, 0, 7560);
boost::gregorian::date d(gnav_eph.d_yr, 1, 1);
boost::gregorian::days d2(gnav_eph.d_N_T);
d = d + d2;
boost::gregorian::date expected_gdate;
boost::posix_time::time_duration expected_gtime;
boost::posix_time::ptime gtime = gnav_eph.compute_GLONASS_time(7560);
expected_gdate = gtime.date();
expected_gtime = gtime.time_of_day();
// Perform assertions of decoded fields
ASSERT_TRUE(expected_gdate.year() - d.year() < FLT_EPSILON);
ASSERT_TRUE(expected_gdate.month() - d.month() < FLT_EPSILON);
ASSERT_TRUE(expected_gdate.day() - d.day() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.hours() - t.hours() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.minutes() - t.minutes() < FLT_EPSILON);
ASSERT_TRUE(expected_gtime.seconds() - t.seconds() < FLT_EPSILON);
}
/*!
* \brief Testing conversion from GLONASST to GPST
* \test Tests scenario for N_T when greater than 365 days. Possible values here from 1 to 365*4
*/
TEST(GlonassGnavEphemerisTest, ConvertGlonassT2GpsT1)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2004;
gnav_eph.d_N_T = 366 + 28;
double glo2utc = 3600 * 3;
double tod = 48600;
int week = 0.0;
double tow = 0.0;
double true_leap_sec = 13;
double true_week = 1307;
double true_tow = 480600 + true_leap_sec;
gnav_eph.glot_to_gpst(tod + glo2utc, 0.0, 0.0, &week, &tow);
// Perform assertions of decoded fields
ASSERT_TRUE(week - true_week < FLT_EPSILON);
ASSERT_TRUE(tow - true_tow < FLT_EPSILON);
}
/*!
* \brief Testing conversion from GLONASST to GPST
* \test This version tests the conversion for offsets greater than 30 in a leap year
*/
TEST(GlonassGnavEphemerisTest, ConvertGlonassT2GpsT2)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2016;
gnav_eph.d_N_T = 268;
double glo2utc = 3600 * 3;
double tod = 7560;
int week = 0.0;
double tow = 0.0;
double true_leap_sec = 17;
double true_week = 1915;
double true_tow = 518400 + true_leap_sec + tod;
gnav_eph.glot_to_gpst(tod + glo2utc, 0.0, 0.0, &week, &tow);
// Perform assertions of decoded fields
ASSERT_TRUE(week - true_week < FLT_EPSILON);
ASSERT_TRUE(tow - true_tow < FLT_EPSILON);
}
/*!
* \brief Testing conversion from GLONASST to GPST
* \test This version tests the conversion around the vicinity of February 29 days when in leap year
*/
TEST(GlonassGnavEphemerisTest, ConvertGlonassT2GpsT3)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2016;
gnav_eph.d_N_T = 62;
double glo2utc = 3600 * 3;
double tod = 7560;
int week = 0.0;
double tow = 0.0;
double true_leap_sec = 17;
double true_week = 1886;
double true_tow = 259200 + true_leap_sec + tod;
gnav_eph.glot_to_gpst(tod + glo2utc, 0.0, 0.0, &week, &tow);
// Perform assertions of decoded fields
ASSERT_TRUE(week - true_week < FLT_EPSILON);
ASSERT_TRUE(tow - true_tow < FLT_EPSILON);
}
TEST(GlonassGnavEphemerisTest, ConvertGlonassT2GpsT4)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2019;
gnav_eph.d_N_T = 1366;
double glo2utc = 3600 * 3;
double tod = 7560;
int week = 0.0;
double tow = 0.0;
double true_leap_sec = 18;
double true_week = 2072;
double true_tow = 447120 + true_leap_sec + tod;
gnav_eph.glot_to_gpst(tod + glo2utc, 0.0, 0.0, &week, &tow);
// Perform assertions of decoded fields
ASSERT_TRUE(week - true_week < FLT_EPSILON);
ASSERT_TRUE(tow - true_tow < FLT_EPSILON);
}
TEST(GlonassGnavEphemerisTest, ConvertGlonassT2GpsT5)
{
Glonass_Gnav_Ephemeris gnav_eph;
gnav_eph.d_yr = 2020;
gnav_eph.d_N_T = 62;
double glo2utc = 3600 * 3;
double tod = 7560;
int week = 0.0;
double tow = 0.0;
double true_leap_sec = 18;
double true_week = 2095;
double true_tow = 259200 + true_leap_sec + tod;
gnav_eph.glot_to_gpst(tod + glo2utc, 0.0, 0.0, &week, &tow);
// Perform assertions of decoded fields
ASSERT_TRUE(week - true_week < FLT_EPSILON);
ASSERT_TRUE(tow - true_tow < FLT_EPSILON);
}