Broadcasted ephemeris message data. More...

Public Member Functions
Corrections	calcClockCorrections (const InsTime &recvTime, double dist, const Frequency &freq) const final
	Calculates clock bias and drift of the satellite.

double	calcSatellitePositionVariance () const final
	Calculates the Variance of the satellite position in [m^2].

	GPSEphemeris (const GPSEphemeris &)=default
	Copy constructor.

	GPSEphemeris (const InsTime &toc)
	Default Constructor.

	GPSEphemeris (const InsTime &toc, const InsTime &toe, const size_t &IODE, const size_t &IODC, const std::array< double, 3 > &a, const double &sqrt_A, const double &e, const double &i_0, const double &Omega_0, const double &omega, const double &M_0, const double &delta_n, const double &Omega_dot, const double &i_dot, const double &Cus, const double &Cuc, const double &Cis, const double &Cic, const double &Crs, const double &Crc, const double &svAccuracy, uint8_t svHealth, uint8_t L2ChannelCodes, bool L2DataFlagPCode, const double &T_GD, const double &fitInterval)
	Constructor.

	GPSEphemeris (GPSEphemeris &&)=default
	Move constructor.

bool	isHealthy () const final
	Checks whether the signal is healthy.

GPSEphemeris &	operator= (const GPSEphemeris &)=delete
	Copy assignment operator.

GPSEphemeris &	operator= (GPSEphemeris &&)=delete
	Move assignment operator.

	~GPSEphemeris () final=default
	Destructor.

Public Member Functions inherited from NAV::SatNavData
SatNavData &	operator= (const SatNavData &)=delete
	Copy assignment operator.

SatNavData &	operator= (SatNavData &&)=delete
	Move assignment operator.

	SatNavData (const SatNavData &)=default
	Copy constructor.

	SatNavData (SatNavData &&)=default
	Move constructor.

	SatNavData (Type type, const InsTime &refTime)
	Constructor.

	~SatNavData () override=default
	Destructor.

Public Member Functions inherited from NAV::Clock
	Clock ()=default
	Default Constructor.

	Clock (Clock &&)=default
	Move constructor.

	Clock (const Clock &)=default
	Copy constructor.

Clock &	operator= (Clock &&)=delete
	Move assignment operator.

Clock &	operator= (const Clock &)=delete
	Copy assignment operator.

virtual	~Clock ()=default
	Destructor.

Public Member Functions inherited from NAV::Orbit
Pos	calcSatellitePos (const InsTime &transTime) const
	Calculates position of the satellite at transmission time.

PosVel	calcSatellitePosVel (const InsTime &transTime) const
	Calculates position and velocity of the satellite at transmission time.

PosVelAccel	calcSatellitePosVelAccel (const InsTime &transTime) const
	Calculates position, velocity and acceleration of the satellite at transmission time.

Orbit &	operator= (const Orbit &)=delete
	Copy assignment operator.

Orbit &	operator= (Orbit &&)=delete
	Move assignment operator.

	Orbit ()=default
	Default Constructor.

	Orbit (const Orbit &)=default
	Copy constructor.

	Orbit (Orbit &&)=default
	Move constructor.

virtual	~Orbit ()=default
	Destructor.

Public Attributes
std::array< double, 3 >	a

double	Cic
	Amplitude of the cosine harmonic correction term to the angle of inclination [rad].

double	Cis
	Amplitude of the sine harmonic correction term to the angle of inclination [rad].

double	Crc
	Amplitude of the cosine harmonic correction term to the orbit radius [m].

double	Crs
	Amplitude of the sine harmonic correction term to the orbit radius [m].

double	Cuc
	Amplitude of the cosine harmonic correction term to the argument of latitude [rad].

double	Cus
	Amplitude of the sine harmonic correction term to the argument of latitude [rad].

double	delta_n
	Mean motion difference from computed value [rad/s].

double	e
	Eccentricity [-].

double	fitInterval
	Fit Interval of ephemerides [h].

double	i_0
	Inclination angle at reference time [rad].

double	i_dot
	Rate of change of inclination [rad/s].

size_t	IODC
	Issue of Data, Clock.

size_t	IODE
	Issue of Data, Ephemeris.

uint8_t	L2ChannelCodes
	Indicate which code(s) is (are) commanded ON for the in-phase component of the L2 channel.

bool	L2DataFlagPCode
	Data Flag for L2 P-Code.

double	M_0
	Mean anomaly at reference time [rad].

double	omega
	Argument of perigee [rad].

double	Omega_0
	Longitude of the ascending node at reference time [rad].

double	Omega_dot
	Rate of change of right ascension [rad/s].

double	sqrt_A
	Square root of the semi-major axis [m^1/2].

double	svAccuracy
	SV accuracy [m].

uint8_t	svHealth
	SV health.

double	T_GD
	Estimated Group Delay Differential. L1 and L2 correction term [s].

InsTime	toc
	Time of Clock.

InsTime	toe
	Time of Ephemeris.

Public Attributes inherited from NAV::SatNavData
InsTime	refTime
	Reference time of the information.

const Type	type
	Child type (for down-casting)

Additional Inherited Members
Public Types inherited from NAV::SatNavData
enum	Type { GPSEphemeris , GalileoEphemeris , GLONASSEphemeris , BeiDouEphemeris , QZSSEphemeris , IRNSSEphemeris , SBASEphemeris }
	Child type. More...

Protected Types inherited from NAV::Orbit
enum	Calc { Calc_None , Calc_Position , Calc_Velocity , Calc_Acceleration }
	Calculation flags. More...

Detailed Description

Broadcasted ephemeris message data.

Note: See [20] IS-GPS-200M, Table 20-III, p. 105

Description of the GPS satellite orbits

Constructor & Destructor Documentation

◆ GPSEphemeris() [1/2]

NAV::GPSEphemeris::GPSEphemeris ( const InsTime & toc )

explicit

Default Constructor.

Parameters

[in] toc Time the Clock information is calculated (Time of Clock)

◆ GPSEphemeris() [2/2]

NAV::GPSEphemeris::GPSEphemeris	(	const InsTime &	toc,
		const InsTime &	toe,
		const size_t &	IODE,
		const size_t &	IODC,
		const std::array< double, 3 > &	a,
		const double &	sqrt_A,
		const double &	e,
		const double &	i_0,
		const double &	Omega_0,
		const double &	omega,
		const double &	M_0,
		const double &	delta_n,
		const double &	Omega_dot,
		const double &	i_dot,
		const double &	Cus,
		const double &	Cuc,
		const double &	Cis,
		const double &	Cic,
		const double &	Crs,
		const double &	Crc,
		const double &	svAccuracy,
		uint8_t	svHealth,
		uint8_t	L2ChannelCodes,
		bool	L2DataFlagPCode,
		const double &	T_GD,
		const double &	fitInterval )

Constructor.

Parameters

[in]	toc	Time the Clock information is calculated (Time of Clock)
[in]	toe	Time the Orbit information is calculated (Time of Ephemeris)
[in]	IODE	Issue of Data, Ephemeris
[in]	IODC	Issue of Data, Clock
[in]	a	Polynomial coefficients for clock correction (a0 bias [s], a1 drift [s/s], a2 drift rate (aging) [s/s^2])
[in]	sqrt_A	Square root of the semi-major axis [m^1/2]
[in]	e	Eccentricity [-]
[in]	i_0	Inclination angle at reference time [rad]
[in]	Omega_0	Longitude of the ascending node at reference time [rad]
[in]	omega	Argument of perigee [rad]
[in]	M_0	Mean anomaly at reference time [rad]
[in]	delta_n	Mean motion difference from computed value [rad/s]
[in]	Omega_dot	Rate of change of right ascension [rad/s]
[in]	i_dot	Rate of change of inclination [rad/s]
[in]	Cus	Amplitude of the sine harmonic correction term to the argument of latitude [rad]
[in]	Cuc	Amplitude of the cosine harmonic correction term to the argument of latitude [rad]
[in]	Cis	Amplitude of the sine harmonic correction term to the angle of inclination [rad]
[in]	Cic	Amplitude of the cosine harmonic correction term to the angle of inclination [rad]
[in]	Crs	Amplitude of the sine harmonic correction term to the orbit radius [m]
[in]	Crc	Amplitude of the cosine harmonic correction term to the orbit radius [m]
[in]	svAccuracy	SV accuracy [m]
[in]	svHealth	Signal Health
[in]	L2ChannelCodes	Indicate which code(s) is (are) commanded ON for the in-phase component of the L2 channel
[in]	L2DataFlagPCode	Data Flag for L2 P-Code
[in]	T_GD	Estimated Group Delay Differential. L1 and L2 correction term [s]
[in]	fitInterval	Fit Interval of ephemerides [h]

Member Function Documentation

◆ calcClockCorrections()

Corrections NAV::GPSEphemeris::calcClockCorrections	(	const InsTime &	recvTime,
		double	dist,
		const Frequency &	freq ) const

finalvirtual

Calculates clock bias and drift of the satellite.

Parameters

[in]	recvTime	Receive time of the signal
[in]	dist	Distance between receiver and satellite (normally the pseudorange) [m]
[in]	freq	Signal Frequency

Implements NAV::Clock.

Member Data Documentation

◆ a

std::array<double, 3> NAV::GPSEphemeris::a

Polynomial coefficients for clock correction

a(0) bias [s]
a(1) drift [s/s]
a(2) drift rate (aging) [s/s^2]

Note: See [20] GPS ICD, ch. 20.3.3.3.1.8, p.95

◆ fitInterval

double NAV::GPSEphemeris::fitInterval

Fit Interval of ephemerides [h].

Note: See [20] GPS ICD, ch. 20.3.3.4.1, p.102

◆ IODC

size_t NAV::GPSEphemeris::IODC

Issue of Data, Clock.

Indicates the issue number of the data set and thereby provides the user with a convenient means of detecting any change in the subframe 1 core CEI data. Constraints on the IODC as well as the relationship between the IODC and the IODE (issue of data, ephemeris) terms are defined in [20] GPS ICD, ch. 20.3.4.4.

Note: See [20] GPS ICD, ch. 20.3.3.3.1.5, p.95

◆ IODE

size_t NAV::GPSEphemeris::IODE

Issue of Data, Ephemeris.

Provides the user with a convenient means for detecting any change in the ephemeris representation parameters

Note: See [20] GPS ICD, ch. 20.3.3.4.1, p.102

◆ L2ChannelCodes

uint8_t NAV::GPSEphemeris::L2ChannelCodes

Indicate which code(s) is (are) commanded ON for the in-phase component of the L2 channel.

00 = Invalid, 01 = P-code ON, 10 = C/A-code ON, 11 = Invalid.

These bits provide no indication of which code(s), if any, may be commanded ON for the quadrature component of the L2 channel.

Note: See [20] GPS ICD, ch. 20.3.3.3.1.2, p. 92

◆ L2DataFlagPCode

bool NAV::GPSEphemeris::L2DataFlagPCode

Data Flag for L2 P-Code.

1 indicates that the LNAV data stream was commanded OFF on the P-code of the in-phase component of the L2 channel. This bit provides no indication of whether LNAV data is or is not present on any code modulated on the quadrature component of the L2 channel.

Note: See [20] GPS ICD, ch. 20.3.3.3.1.6, p. 95

◆ svAccuracy

double NAV::GPSEphemeris::svAccuracy

SV accuracy [m].

Derived from an URA index of the SV for the standard positioning service user.

Note: See [20] GPS ICD, ch. 20.3.3.3.1.3, p.92ff

◆ svHealth

uint8_t NAV::GPSEphemeris::svHealth

SV health.

0 = all LNAV data are OK 1 = some or all LNAV data are bad

Note: See [20] GPS ICD, ch. 20.3.3.3.1.4, p. 94; See [20] GPS ICD, ch. 20.3.3.5.1.3, p. 117ff

◆ T_GD

double NAV::GPSEphemeris::T_GD

Estimated Group Delay Differential. L1 and L2 correction term [s].

Note: See [20] GPS ICD, ch. 20.3.3.3.1.7, p. 95

The documentation for this class was generated from the following file:

/home/runner/work/INSTINCT/INSTINCT/src/Navigation/GNSS/Satellite/Ephemeris/GPSEphemeris.hpp

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GPSEphemeris() [1/2]

◆ GPSEphemeris() [2/2]

Member Function Documentation

◆ calcClockCorrections()

Member Data Documentation

◆ a

◆ fitInterval

◆ IODC

◆ IODE

◆ L2ChannelCodes

◆ L2DataFlagPCode

◆ svAccuracy

◆ svHealth

◆ T_GD