simthlib::PwRotPskDemodulator Class Reference

PwRotPskDemodulator detects each two of the rotated pair of symbols jointly. To be used with RotAlamoutiEncoder/Decoder. More...

#include <absdemodulator.h>

Inheritance diagram for simthlib::PwRotPskDemodulator:

[legend]List of all members.

Public Member Functions
	PwRotPskDemodulator (int deviceID, simth::DeviceSystemIntf *system, const simth::PropertyList &pl)
	~PwRotPskDemodulator ()
virtual int	getBitsPerSymbol () const
virtual int	getNumStates () const
virtual void	print (std::ostream &os) const
Protected Member Functions
Complex	getComplSymbol (int symbolIndex) const
double	getPhase (int symbIndex) const
double	getAmplitude (int symbIndex) const
virtual void	demodulate (const simth::ModSeq &receivedSym, simth::LlrSeq *correspondingLlrValues, double noise=0, const simth::ModSeq *trans=NULL)
virtual void	demodulate (const simth::ModSeq &receivedSym, simth::LlvSeq *correspondingLlvValues, double noise=0, const simth::ModSeq *trans=NULL)
virtual void	MakeMetric (Complex sym, simth::Llv *const llv, Complex h, double noise) const
virtual void	MakeMetric (Complex sym, simth::Llv *const llv) const
void	scaleConstellation (Complex scale)
Related Functions
(Note that these are not member functions.)
	propertylist_PwRotPskDemodulator (not_a_function)

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Detailed Description

PwRotPskDemodulator detects each two of the rotated pair of symbols jointly. To be used with RotAlamoutiEncoder/Decoder.

Note: Channel information is needed and 'only_phase_equalisation' has to be set to 'false'!

Note: This demodulator does NOT have a zero-forcing equalization built-in. Zero-forcing is already done in RotAlamoutiDecoder!

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Constructor & Destructor Documentation

simthlib::PwRotPskDemodulator::PwRotPskDemodulator (  int  deviceID, simth::DeviceSystemIntf *  system, const simth::PropertyList &  pl )

simthlib::PwRotPskDemodulator::~PwRotPskDemodulator (   )

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Member Function Documentation

virtual void simthlib::PwRotPskDemodulator::demodulate (  const simth::ModSeq &  receivedSym, simth::LlvSeq *  correspondingLlvValues, double  noise = 0, const simth::ModSeq *  trans = NULL )  [protected, virtual]

Demodulates a sequence of received data words to a sequence of log-likelihood-values (llv). Reimplemented from simthlib::AbsDemodulatorMetric.

virtual void simthlib::PwRotPskDemodulator::demodulate (  const simth::ModSeq &  receivedSym, simth::LlrSeq *  correspondingLlrValues, double  noise = 0, const simth::ModSeq *  trans = NULL )  [protected, virtual]

Demodulates a sequence of received data words to a sequence of log-likelihood-ratio (llr) values; each simth::LLR_-value represents the hard decisions of one bit and the probability of this decision. The hard decision (the bit itselfs) is determined by the sign of the simth::LLR_-Value, whereas the probability is described by the absolute value of the log-likelihood ratio: /f$llr = ln(p(1)/p(0))/f$ Reimplemented from simthlib::AbsDemodulatorMetric.

double simthlib::PwRotPskDemodulator::getAmplitude (  int  symbIndex  )  const [inline, protected]

virtual int simthlib::PwRotPskDemodulator::getBitsPerSymbol (   )  const [inline, virtual]

Implements simthlib::Demodulator.

Complex simthlib::PwRotPskDemodulator::getComplSymbol (  int  symbolIndex  )  const [inline, protected, virtual]

Implements simthlib::Demodulator.

virtual int simthlib::PwRotPskDemodulator::getNumStates (   )  const [inline, virtual]

Implements simthlib::Demodulator.

double simthlib::PwRotPskDemodulator::getPhase (  int  symbIndex  )  const [inline, protected]

virtual void simthlib::PwRotPskDemodulator::MakeMetric (  Complex  sym, simth::Llv *const   llv )  const [protected, virtual]

Not needed - demodulation is already done in PwRotPskDemodulator::demodulate. Implements simthlib::AbsDemodulatorMetric.

virtual void simthlib::PwRotPskDemodulator::MakeMetric (  Complex  sym, simth::Llv *const   llv, Complex  h, double  noise )  const [protected, virtual]

Not needed - demodulation is already done in PwRotPskDemodulator::demodulate. Implements simthlib::AbsDemodulatorMetric.

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

Reimplemented from simthlib::AbsDemodulatorMapping.

void simthlib::PwRotPskDemodulator::scaleConstellation (  Complex  scale  )  [inline, protected]

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Friends And Related Function Documentation

propertylist_PwRotPskDemodulator (  not_a_function   )  [related]

These are the properties of class PwRotPskDemodulator . This list is auto-generated from the XML-Devicelist of this device by means of an XSLT transformation script. Description of this device in the XML file: PSK Demodulator which detects each two of the rotated pair of symbols jointly. To be used with RotAlamouti-Encoder/Decoder. Note that this class also has the Properties of its base classes. The direct base class is simthlib::AbsDemodulatorMetric ; direct link to its propertylist should be propertylist_AbsDemodulatorMetric(). The list below usually includes the properties that have been inherited from the base classes; the properties which belong only to this class can be found at the end of this list. The above properties have been inherited from the base class simthlib::AbsDemodulatorMapping . only_phase_equalisation <bool>, default "false" -- If true, then the demodulation only performs a phase equalization. If false, then the demodulation performs a full ZF equalization. On the other hand, if the second input interface is unconnected, then the demodulation does not perform any equalization at all. 1 properties in this class. The above properties have been inherited from the base class simthlib::AbsDemodulatorMetric . scale_real <double>, default "1.0" -- OBSOLETE? scale_imag <double>, default "0.0" -- OBSOLETE? 2 properties in this class.

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