simthlib::PskDemodulator Class Reference

PSK Demodulator. More...

#include <absdemodulator.h>

Inheritance diagram for simthlib::PskDemodulator:

[legend]List of all members.

Public Member Functions
	PskDemodulator (int deviceID, simth::DeviceSystemIntf *system, const simth::PropertyList &pl)
	~PskDemodulator ()
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	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_PskDemodulator (not_a_function)

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Detailed Description

PSK Demodulator.

Note: These classes also have a zero-forcing equalization built-in. If you intend to perform the equalization otherwise, you *must* either leave the channel information interface unconnected, or you need to look into the "phase_only_equalization" property because that one will skip the equalization but still calculate the correct LLRs.

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Constructor & Destructor Documentation

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

simthlib::PskDemodulator::~PskDemodulator (   )

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Member Function Documentation

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

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

Implements simthlib::Demodulator.

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

Implements simthlib::Demodulator.

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

Implements simthlib::Demodulator.

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

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

Returns the metric for the given symbol sym by the symbol itself and without any channel information h. Normally this would cause an error, because the channel information is needed for the equalization before absolute demodulation. However, this function will silently assume that the equalization has been done beforehand. Or probably its possible to implement a derived class which is able to demodulate without channel information. Implements simthlib::AbsDemodulatorMetric.

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

Returns the metric for the given symbol by the symbol itself, and the channel information h. This function also performs ZF equalization by dividing the received symbol through the channel information h. Implements simthlib::AbsDemodulatorMetric.

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

Reimplemented from simthlib::AbsDemodulatorMapping.

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

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Friends And Related Function Documentation

propertylist_PskDemodulator (  not_a_function   )  [related]

These are the properties of class PskDemodulator . 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 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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