Filter Lead or Lag (Fixed-Point Blockset)

Implement a discrete-time lead or lag filter

Library

Filters

Description

The Filter Lead or Lag block implements a discrete-time lead or lag filter of the input. The instantaneous gain of the filter is one, and the DC gain is equal to (1-z)/(1-p), where z is the zero and p is the pole of the filter.

The block implements a lead filter when 0 < z < p < 1, and implements a lag filter when 0 < p < z < 1.

Parameters and Dialog Box

Pole of filter (in Z plane): Set the pole of the filter.
Zero of filter (in Z plane): Set the zero of the filter.
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

FIR

Filter First Order Filter Real Zero