simthlib::ConvCodeTrellisShiftRegister Class Reference

#include <trellis.h>

Inheritance diagram for simthlib::ConvCodeTrellisShiftRegister:

[legend]List of all members.

Public Member Functions
	ConvCodeTrellisShiftRegister (int symbolsPerStep, const simth::checkedVector< int > &polynomials, int recursivePolynomial, bool systematic)
	ConvCodeTrellisShiftRegister (int symbolsPerStep, int bitsPerSymbol, StartingMode startingMode, map_type mappMode, const simth::checkedVector< int > &polynomials, int recursivePolynomial, bool systematic=false)
virtual	~ConvCodeTrellisShiftRegister ()
	Destructor.
int	symbolsPerStep () const
int	bitsPerSymbol () const
virtual void	print (std::ostream &os) const
Protected Member Functions
virtual bool	isPossibleStartingState (int state) const

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Detailed Description

This class represents a convolutional code that is implemented by using a shift register. See class ShiftRegister for further information.

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Constructor & Destructor Documentation

simthlib::ConvCodeTrellisShiftRegister::ConvCodeTrellisShiftRegister (  int  symbolsPerStep, const simth::checkedVector< int > &  polynomials, int  recursivePolynomial, bool  systematic )

Constructor with fixed mapping mode (NATURAL) and fixed starting mode (ZERO).

simthlib::ConvCodeTrellisShiftRegister::ConvCodeTrellisShiftRegister (  int  symbolsPerStep, int  bitsPerSymbol, StartingMode  startingMode, map_type  mappMode, const simth::checkedVector< int > &  polynomials, int  recursivePolynomial, bool  systematic = false )

Constructor that allows to set each parameter explicitly. The second argument specifies the bits per input symbol. For a conventional binary code this argument equals one. In this case the input symbols are actually input bits. Hence in this case the first parameter sets the number of input bits. Parameters: symbolsPerStep  The number of input symbols per step (or bits, see above) bitsPerSymbol  The number of bits per input symbol startingMode  For conventional codes the starting mode should be set to 'ZERO'. mappMode  For conventional codes the mapping mode should be set to 'NATURAL' polynomials  The sequence of forward polynomials specifying the code recursivePolynomial  The recursive polynomial (equals 0 for non recursive codes) systematic  If true a systematic part is considered

virtual simthlib::ConvCodeTrellisShiftRegister::~ConvCodeTrellisShiftRegister (   )  [virtual]

Destructor.

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Member Function Documentation

int simthlib::ConvCodeTrellisShiftRegister::bitsPerSymbol (   )  const [inline]

virtual bool simthlib::ConvCodeTrellisShiftRegister::isPossibleStartingState (  int  state  )  const [protected, virtual]

Returns true if the given state is a possible starting state. The result depends on the starting mode set by the constructor argument. Implements simthlib::ConvCodeTrellis.

virtual void simthlib::ConvCodeTrellisShiftRegister::print (  std::ostream &  os  )  const [virtual]

Reimplemented from simthlib::Trellis.

int simthlib::ConvCodeTrellisShiftRegister::symbolsPerStep (   )  const [inline]

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