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IIRFilter zroots (double fs, int nzeros, const dComplex* zero, int npoles, const dComplex* pole, double gain = 1.0)

Make a filter from z-plane roots

Documentation

Make a IIR filter from the list of poles and zeros in the z-plane. To be stable the z-plane poles must lie within the unity cirlce.

Throws a runtime_error or invalid_argument exception, if an illegale arguments are specified.

Returns:
IIRFilter
Parameters:
fs - Sampling frequency
nzeros - Number of zeros
zero - Array of zeros
npoles - Number of poles
pole - Array of poles
gain - Gain

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Please send questions and comments to zweizig_j@ligo.caltech.edu

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