Generates the set of filter coefficients to implement an IIR filter as specified by the Chebyshev II Filter model. You can pass these coefficients to the IIR Cascade Filter VI to filter a sequence of data. Details
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filter type specifies the passband of the filter.
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sampling freq: fs is the sampling frequency and must be greater than zero. The default is 1.0. | ||||||||
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high cutoff freq: fh is the high cutoff frequency. The VI ignores this parameter when filter type is 0 (Lowpass) or 1 (Highpass). When filter type is 2 (Bandpass) or 3 (Bandstop), high cutoff freq: fh must be greater than low cutoff freq: fl. | ||||||||
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low cutoff freq: fl is the low cutoff frequency and must observe the Nyquist criterion. where
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attenuation is the attenuation in the stopband. attenuation must be greater than zero and must be expressed in decibels. The default is 60.0 | ||||||||
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order is the order of the IIR filter and must be greater than zero. | ||||||||
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IIR Filter Cluster contains three elements: filter structure, Reverse Coefficients, and Forward Coefficients.
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error returns any error or warning from the VI. Refer to Signal Processing Error Codes for more information about these conditions. |
Refer to Chebyshev II or Inverse Chebyshev Filters for additional information and examples of how to use inverse Chebyshev filters. The Inv Chebyshev Coefficients VI is a subVI of the Inverse Chebyshev Filter VI.