Filter Direct Form I (Fixed-Point Blockset)

Implement a Direct Form I realization of a filter

Library

Filters

Description

The Filter Direct Form I block implements a Direct Form I 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 for previous output: Set the initial condition for the previous output.
Initial condition for previous input: Set the initial condition for the previous input.
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

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 I Time Varying, FIR

Dot Product Filter Direct Form I Time Varying