edu.gtts.sautrela.sp
Class PowerSpectrum

java.lang.Object
  edu.gtts.sautrela.engine.AbstractDataProcessor
      edu.gtts.sautrela.sp.PowerSpectrum

All Implemented Interfaces:

DataProcessor, java.beans.BeanInfo, java.io.Serializable

public class PowerSpectrum
extends AbstractDataProcessor

Calculates the PowerSpectrum of each input DoubleData stream.

See Also:

Serialized Form

Field Summary

static int

DEFAULT_SIZE default size of FFT == 512

Fields inherited from interface java.beans.BeanInfo

ICON_COLOR_16x16, ICON_COLOR_32x32, ICON_MONO_16x16, ICON_MONO_32x32

Constructor Summary

PowerSpectrum()
Creates a new PowerSpectrum DataProcessor

Method Summary

void	editBeanInfo(java.beans.BeanInfo info)
int	getSize() Gets the size of the FFT
static void	main(java.lang.String[] args)
void	process(Buffer in, Buffer out) Processes the input Data.
void	setSize(int size) Sets the size of the FFT.

Methods inherited from class edu.gtts.sautrela.engine.AbstractDataProcessor

getAdditionalBeanInfo, getBeanDescriptor, getDefaultEventIndex, getDefaultPropertyIndex, getEventSetDescriptors, getIcon, getMethodDescriptors, getName, getPropertyDescriptors, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT_SIZE

public static final int DEFAULT_SIZE

default size of FFT == 512

See Also:

Constant Field Values

Constructor Detail

PowerSpectrum

public PowerSpectrum()

Creates a new PowerSpectrum DataProcessor

Method Detail

getSize

public int getSize()

Gets the size of the FFT

Returns:

The size of the FFT

setSize

public void setSize(int size)
             throws java.lang.UnsupportedOperationException

Sets the size of the FFT. It must be a power of 2. If input data size is smaller, then the data is filled with zeros.

Parameters:

size - The size of the FFT

Throws:

java.lang.UnsupportedOperationException

process

public void process(Buffer in,
                    Buffer out)
             throws DataProcessorException

Processes the input Data. The output data size is half the FFT size.

Parameters:

in - Input Buffer

out - Output Buffer

Throws:

DataProcessorException

editBeanInfo

public void editBeanInfo(java.beans.BeanInfo info)

Overrides:

editBeanInfo in class AbstractDataProcessor

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception