Transfer Fcn Direct Form II (Simulink Reference)

Implement a Direct Form II realization of a transfer function

Library

Additional Math & Discrete / Additional Discrete

Description

The Transfer Fcn Direct Form II block implements a Direct Form II realization of the transfer function specified by the Numerator coefficients and the Denominator coefficients excluding lead parameters. The block only supports single input-single output transfer functions.

The block automatically selects the data types and scalings of the output, the coefficients, and any temporary variables.

Data Type Support

The Transfer Fcn Direct Form II block accepts signals of any data type supported by Simulink, including fixed-point data types.

Parameters and Dialog Box

Numerator coefficients: Specify the numerator coefficients.
Denominator coefficients excluding lead: Specify the denominator coefficients, excluding the leading coefficient, which must be 1.0.
Initial condition: Set the initial condition.
Round toward: Rounding mode for the fixed-point output.
Saturate to max or min when overflows occur: If selected, fixed-point overflows saturate.

Characteristics

Direct Feedthrough

Yes

Scalar Expansion

Yes, of initial conditions

Direct Feedthrough	Yes
Scalar Expansion	Yes, of initial conditions

Transfer Fcn Transfer Fcn Direct Form II Time Varying