Fixed-Point Blockset    
Filter Direct Form I

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

See Also

Filter Direct Form I Time Varying, FIR


  Dot Product Filter Direct Form I Time Varying