IIRFilter

Component Type: Processor (Subcategory: DSP and Feature Detection)

This plugin provides adjustable Infinite Impulse Response Filters, based on the Java DSP Library: http://www.source-code.biz/dsp/java

IIRFilter plugin

Input Port Description

• in [double]: The signal to be filtered

Input Port Description

• out [double]: The filtered signal
• magnitude [double]: the magnitude of the filtered signal in the selected passband (only calculated if the passType = bandpass !)

Properties

• passType [integer] (combobox selection): can be lowpass, highpass, bandpass or bandstop
  
• characteristicType [integer] (combobox selection): can be butterworth, bessel or chebyshev
  
• order [integer]: the filter order (values from 1 to 12 recommended)
  
• samplingFrequency [integer]: the sampling rate of the input signal
  
• fc1 [double]: corner frequency (lower corner frequency for bandpass filter)
  
• fc2 [double]: higher corner frequency (ignored in case of highpass or lowpass types)
  
• ripple [double]: the passband ripple supression, must be a negative value (only for chebyshev types, ignored for other types)