Package clickDetector

Class TriggerFilter

java.lang.Object

clickDetector.TriggerFilter

public class TriggerFilter
extends Object

Author:

Doug Gillespie

Really simple filter for creating decaying averages of the rectified signals in the click triggers.

Constructor Summary

Constructors

Constructor	Description
TriggerFilter(double alpha, double initialValue)
TriggerFilter(double alpha1, double alpha2, double initialValue)

Method Summary

Modifier and Type	Method	Description
double	runFilter(double newValue, boolean overThreshold)	Runs the filter ona single sample
void	setMemory(double memory)

Methods inherited from class java.lang.Object

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

Constructor Details

TriggerFilter

public TriggerFilter(double alpha,
 double initialValue)

Parameters:

alpha - decay constant

initialValue - Initidalisation value

TriggerFilter

public TriggerFilter(double alpha1,
 double alpha2,
 double initialValue)

Parameters:

alpha1 - decay constant

alpha2 - decay constant for use when trigger function is above threshold

initialValue - initialisation value

Method Details

runFilter

public double runFilter(double newValue,
 boolean overThreshold)

Runs the filter ona single sample

Parameters:

newValue - filter input

overThreshold - over threshold flag (controls which alpha value to use)

Returns:

filter output

setMemory

public void setMemory(double memory)