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java.lang.Objectcom.oregondsp.signalProcessing.filter.iir.IIRFilter
com.oregondsp.signalProcessing.filter.iir.Butterworth
public class Butterworth
Class to implement digital Butterworth filters.
Constructor Summary | |
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Butterworth(int order,
PassbandType type,
double f1,
double f2,
double delta)
Instantiates a new Butterworth digital filter. |
Method Summary |
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Methods inherited from class com.oregondsp.signalProcessing.filter.iir.IIRFilter |
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evaluate, filter, filter, filter, groupDelay, initialize, print |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Butterworth(int order, PassbandType type, double f1, double f2, double delta)
order
- int specifying the order (number of poles) of the filter.type
- PassbandType specifying whether the filter is a lowpass, bandpass or highpass filter.f1
- double specifying the low cutoff frequency (must always be present, but used only for
bandpass and highpass filters).f2
- double specifying the high cutoff frequency (must always be present, but used only for
bandpass and lowpass filters).delta
- double specifying the sampling interval of the data to which this filter will be applied.
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