OpenSim::Signal Class Reference

A class for signal processing. More...

Static Public Member Functions
static int	SmoothSpline (int aDegree, double aDeltaT, double aCutOffFrequency, int aN, double *aTimes, double *aSignal, double *rFilteredSignal)
static int	LowpassIIR (double aDeltaT, double aCutOffFrequency, int aN, const double *aSignal, double *rFilteredSignal)
static int	LowpassFIR (int aOrder, double aDeltaT, double aCutoffFrequency, int aN, double *aSignal, double *rFilteredSignal)
static int	BandpassFIR (int aOrder, double aDeltaT, double aLowFrequency, double aHighFrequency, int aN, double *aSignal, double *aFilteredSignal)
static std::vector< double >	Pad (int aPad, int aN, const double aSignal[])
	Pad a signal with a specified number of data points. More...
static void	Pad (int aPad, OpenSim::Array< double > &aSignal)
static int	ReduceNumberOfPoints (double aDistance, Array< double > &rTime, Array< double > &rSignal)
static double	sinc (double x)
static double	hamming (int k, int M)

Detailed Description

A class for signal processing.

Member Function Documentation

BandpassFIR()

static int OpenSim::Signal::BandpassFIR ( int  aOrder, double  aDeltaT, double  aLowFrequency, double  aHighFrequency, int  aN, double *  aSignal, double *  aFilteredSignal  )

static

hamming()

static double OpenSim::Signal::hamming ( int  k, int  M  )

static

LowpassFIR()

static int OpenSim::Signal::LowpassFIR ( int  aOrder, double  aDeltaT, double  aCutoffFrequency, int  aN, double *  aSignal, double *  rFilteredSignal  )

static

LowpassIIR()

static int OpenSim::Signal::LowpassIIR ( double  aDeltaT, double  aCutOffFrequency, int  aN, const double *  aSignal, double *  rFilteredSignal  )

static

Pad() [1/2]

static std::vector<double> OpenSim::Signal::Pad ( int  aPad, int  aN, const double  aSignal[]  )

static

Pad a signal with a specified number of data points.

The signal is prepended and appended with a reflected and negated portion of the signal of the appropriate size so as to preserve the value and slope of the signal.

Parameters

aPad	Size of the pad– number of points to prepend and append.
aN	Number of data points in the signal.
aSignal	Signal to be padded.

Returns

Padded signal. The size is aN + 2*aPad.

Pad() [2/2]

static void OpenSim::Signal::Pad ( int  aPad, OpenSim::Array< double > &  aSignal  )

static

ReduceNumberOfPoints()

static int OpenSim::Signal::ReduceNumberOfPoints ( double  aDistance, Array< double > &  rTime, Array< double > &  rSignal  )

static

sinc()

static double OpenSim::Signal::sinc ( double  x )

static

SmoothSpline()

static int OpenSim::Signal::SmoothSpline ( int  aDegree, double  aDeltaT, double  aCutOffFrequency, int  aN, double *  aTimes, double *  aSignal, double *  rFilteredSignal  )

static

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

• OpenSim/Common/Signal.h