Detailed Description

Wrapper for the 9-bit health status in BeiDou D2NAV subframe 5, page 7-8.

Definition at line 51 of file BDSD2NavHealth.hpp.

#include <BDSD2NavHealth.hpp>

Inheritance diagram for gnsstk::BDSD2NavHealth:

Public Types
enum	BDSD2HealthBits { SatClock = 0x100, B1ISignalWeak = 0x80, B2ISignalWeak = 0x40, B3ISignalWeak = 0x20, NavMsgBad = 0x02 }

Public Member Functions
	BDSD2NavHealth ()
	Initialize to unhealthy using a value typically not seen in health. More...

NavDataPtr	clone () const override
	Create a deep copy of this object. More...

void	dump (std::ostream &s, DumpDetail dl) const override

SVHealth	getHealth () const override

bool	validate () const override

Public Member Functions inherited from gnsstk::NavHealthData
std::list< std::string >	compare (const NavDataPtr &right) const override

CommonTime	getNearTime () const override

bool	isSameData (const NavDataPtr &right) const override

	NavHealthData ()
	Set our message type to health so we don't have to in every leaf. More...

Public Member Functions inherited from gnsstk::NavData
virtual std::string	getClassName () const

std::string	getDumpTime (DumpDetail dl, const CommonTime &t) const

std::string	getDumpTimeHdr (DumpDetail dl) const

std::string	getSignalString () const

bool	getSVN (const SatID &sat, const gnsstk::CommonTime &when, std::string &svn) const

virtual CommonTime	getUserTime () const

	NavData ()
	Initialize internal data fields. More...

Public Attributes
bool	isAlmHealth
	If true, svHealth is representative, otherwise satH1 is. More...

bool	satH1
	Ephemeris health (autonomous satellite health flag). More...

uint16_t	svHealth
	9-bit health from subframes 4. More...

Public Attributes inherited from gnsstk::NavData
NavMessageID	signal
	Source signal identification for this navigation message data. More...

CommonTime	timeStamp

std::string	weekFmt

Additional Inherited Members
Static Public Member Functions inherited from gnsstk::NavData
static gnsstk::SatMetaDataStore *	getSatMetaDataStore ()
	Accessor for python. More...

static void	setSatMetaDataStore (gnsstk::SatMetaDataStore *smds)
	Accessor for python. More...

Static Public Attributes inherited from gnsstk::NavData
static const GNSSTK_EXPORT std::string	dumpTimeFmt
	Time format used for the dump method (Full). More...

static const GNSSTK_EXPORT std::string	dumpTimeFmtBrief
	Time format used for the dump method (Brief). More...

static GNSSTK_EXPORT gnsstk::SatMetaDataStore *	satMetaDataStore = nullptr
	Set this to a valid store to get PRN->SVN translations in dump(). More...

Protected Attributes inherited from gnsstk::NavData
double	msgLenSec

Member Enumeration Documentation

◆ BDSD2HealthBits

enum gnsstk::BDSD2NavHealth::BDSD2HealthBits

Enumeration for defining the D2 health bits meaning. Intentionally not an enum class, which would require having to cast the values to an integer before doing bit math e.g. "svHealth & SatClock" vs. "svHealth & static_cast<uint16_t>(BDSD2HealthBits::SatClock)"

Enumerator
SatClock	Per table 5-15: "the satellite clock is unavailable if the other 8 bits are all “0”; the satellite is in failure or permanently shut off if the last 8bits are all “1”; the definition is reserved if the other 8 bits are in other values."
B1ISignalWeak	B1I signal power 10dB+ lower than nominal.
B2ISignalWeak	B2I signal power 10dB+ lower than nominal.
B3ISignalWeak	B3I signal power 10dB+ lower than nominal.
NavMsgBad	IOD over limit.

Definition at line 59 of file BDSD2NavHealth.hpp.

Constructor & Destructor Documentation

◆ BDSD2NavHealth()

gnsstk::BDSD2NavHealth::BDSD2NavHealth ( )

Initialize to unhealthy using a value typically not seen in health.

Definition at line 47 of file BDSD2NavHealth.cpp.

Member Function Documentation

◆ clone()

NavDataPtr gnsstk::BDSD2NavHealth::clone ( ) const

inlineoverridevirtual

Create a deep copy of this object.

Implements gnsstk::NavData.

Definition at line 77 of file BDSD2NavHealth.hpp.

◆ dump()

void gnsstk::BDSD2NavHealth::dump	(	std::ostream &	s,
		DumpDetail	dl
	)		const

overridevirtual

Print the contents of this object in a human-readable format.

Parameters

[in,out]	s	The stream to write the data to.
[in]	dl	The level of detail the output should contain.

Reimplemented from gnsstk::NavData.

Definition at line 83 of file BDSD2NavHealth.cpp.

◆ getHealth()

SVHealth gnsstk::BDSD2NavHealth::getHealth ( ) const

overridevirtual

Defines the status of NavData::signal, specifically sat (not xmitSat).

Returns: Healthy if no health bits are set.

Todo:: Determine if this is reasonable. It appears as though the reserved health bits can sometimes be non-zero even if other explicitly defined bits are not, and also different signals can be set unhealthy. So if we have health data that is tagged as B1I that says B3I is unhealthy, do we indicate that we're unhealthy? Compare that to GPS LNAV which defines health bits in a similar fashion (different bits indicate health on different signals), but it's not really used that way - typically either all bits are set or cleared. As such, we need to clarify user expectations as much as anything.

Implements gnsstk::NavHealthData.

Definition at line 58 of file BDSD2NavHealth.cpp.

◆ validate()

bool gnsstk::BDSD2NavHealth::validate ( ) const

inlineoverridevirtual

Checks the contents of this message against known validity rules as defined in the appropriate ICD.

Returns: true always as there is nothing to check in this class.

Implements gnsstk::NavData.

Definition at line 84 of file BDSD2NavHealth.hpp.

Member Data Documentation

◆ isAlmHealth

bool gnsstk::BDSD2NavHealth::isAlmHealth

If true, svHealth is representative, otherwise satH1 is.

Definition at line 99 of file BDSD2NavHealth.hpp.

◆ satH1

bool gnsstk::BDSD2NavHealth::satH1

Ephemeris health (autonomous satellite health flag).

Definition at line 101 of file BDSD2NavHealth.hpp.

◆ svHealth

uint16_t gnsstk::BDSD2NavHealth::svHealth

9-bit health from subframes 4.

Definition at line 103 of file BDSD2NavHealth.hpp.

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