UTILSLIB::IirBiquad Struct Reference

Coefficients of one second-order IIR section (biquad). More...

#include <iirfilter.h>

Public Attributes
double	b0 = 1.0
double	b1 = 0.0
double	b2 = 0.0
double	a1 = 0.0
double	a2 = 0.0

Detailed Description

Coefficients of one second-order IIR section (biquad).

Transfer function (Direct-Form II):

H(z) = (b0 + b1*z^-1 + b2*z^-2) / (1 + a1*z^-1 + a2*z^-2)

Note: a0 is normalised to 1. For first-order sections set b2 = a2 = 0.

Definition at line 77 of file iirfilter.h.

Member Data Documentation

a1

double UTILSLIB::IirBiquad::a1 = 0.0

Denominator coefficient z^-1 (a0 normalised to 1).

Definition at line 82 of file iirfilter.h.

a2

double UTILSLIB::IirBiquad::a2 = 0.0

Denominator coefficient z^-2.

Definition at line 83 of file iirfilter.h.

b0

double UTILSLIB::IirBiquad::b0 = 1.0

Numerator coefficient z^0.

Definition at line 79 of file iirfilter.h.

b1

double UTILSLIB::IirBiquad::b1 = 0.0

Numerator coefficient z^-1.

Definition at line 80 of file iirfilter.h.

b2

double UTILSLIB::IirBiquad::b2 = 0.0

Numerator coefficient z^-2.

Definition at line 81 of file iirfilter.h.

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The documentation for this struct was generated from the following file:

• src/libraries/dsp/iirfilter.h