Fixed-Point Blockset    
Filter Direct Form II

Implement a Direct Form II realization of a filter

Library

Filters

Description

The Filter Direct Form II block implements a Direct Form II realization of the filter specified by the Numerator coefficients and the Denominator coefficients excluding lead parameters. The block only supports single input-single output filters.

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

Parameters and Dialog Box

Numerator coefficients
Coefficients for the numerator of the filter.
Denominator coefficients excluding lead
Coefficients for the denominator of the filter, 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

Input Ports
Any data type supported by the blockset--it must be a scalar
Output Port
Any data type supported by the blockset
Direct Feedthrough
Yes
Scalar Expansion
Of initial conditions
Vectorized
No

See Also

Filter Direct Form II Time Varying, FIR


  Filter Direct Form I Time Varying Filter Direct Form II Time Varying