gnsstk::LNavTLMHOWFilter Class Reference

Detailed Description

Filter GPS nav subframes with

1. a bad preamble
2. an invalid TOW count
3. an invalid subframe ID, or
4. non-zero parity bits in the HOW bits 29-30. Input data is assumed to be upright.

Attention

Processing depth = 1 epoch.

Definition at line 57 of file LNavTLMHOWFilter.hpp.

#include <LNavTLMHOWFilter.hpp>

Inheritance diagram for gnsstk::LNavTLMHOWFilter:

Public Member Functions
virtual std::string	filterName () const noexcept
	Return the filter name. More...
virtual void	finalize (NavMsgList &msgBitsOut)
	Filter stores no data, therefore this does nothing. More...
	LNavTLMHOWFilter ()
virtual unsigned	processingDepth () const noexcept
	No internal storage of subframe data so return 0. More...
virtual void	validate (NavMsgList &msgBitsIn, NavMsgList &msgBitsOut)
Public Member Functions inherited from gnsstk::NavFilter
virtual void	dumpRejected (std::ostream &out) const
	Debug support. More...
	NavFilter ()
virtual std::string	reasonTerse () const noexcept
virtual std::vector< std::string >	reasonVerbose () const noexcept

Additional Inherited Members
Public Types inherited from gnsstk::NavFilter
typedef std::list< NavFilterKey * >	NavMsgList
Public Attributes inherited from gnsstk::NavFilter
NavMsgList	rejected
Protected Member Functions inherited from gnsstk::NavFilter
void	accept (const NavMsgList &valid, NavMsgList &msgBitsOut)
void	accept (NavFilterKey *data, NavMsgList &msgBitsOut)
void	reject (const NavMsgList &invalid)
void	reject (NavFilterKey *data)

Constructor & Destructor Documentation

LNavTLMHOWFilter()

gnsstk::LNavTLMHOWFilter::LNavTLMHOWFilter

(

)

Definition at line 45 of file LNavTLMHOWFilter.cpp.

Member Function Documentation

filterName()

virtual std::string gnsstk::LNavTLMHOWFilter::filterName ( ) const

inlinevirtualnoexcept

Return the filter name.

Implements gnsstk::NavFilter.

Definition at line 80 of file LNavTLMHOWFilter.hpp.

finalize()

virtual void gnsstk::LNavTLMHOWFilter::finalize ( NavMsgList &  msgBitsOut )

inlinevirtual

Filter stores no data, therefore this does nothing.

Implements gnsstk::NavFilter.

Definition at line 72 of file LNavTLMHOWFilter.hpp.

processingDepth()

virtual unsigned gnsstk::LNavTLMHOWFilter::processingDepth ( ) const

inlinevirtualnoexcept

No internal storage of subframe data so return 0.

Implements gnsstk::NavFilter.

Definition at line 76 of file LNavTLMHOWFilter.hpp.

validate()

void gnsstk::LNavTLMHOWFilter::validate ( NavMsgList &  msgBitsIn, NavMsgList &  msgBitsOut  )

virtual

Check the TLM and HOW of GPS legacy nav messages (i.e. data fields common to all subframes).

Precondition

LNavFilterData::sf is set

Parameters

[in,out]	msgBitsIn	A list of LNavFilterData* objects containing GPS legacy navigation messages (id 2).
[out]	msgBitsOut	The messages successfully passing the filter.

Implements gnsstk::NavFilter.

Definition at line 50 of file LNavTLMHOWFilter.cpp.

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

• LNavTLMHOWFilter.hpp
• LNavTLMHOWFilter.cpp