Aerospace Blockset

Gain Scheduled Lead-Lag

Implement a first-order lead-lag with gain-scheduled coefficients

Library

GNC

Description

The Gain Scheduled Lead-Lag block implements a first-order lag of the form

where e is the filter input, and u the filter output.

The coefficients a and b are inputs to the block, and hence can be made dependent on flight condition or operating point. For example, they could be produced from the Look-Up Table (n-D) block.

Dialog Box

Initial state, x_initial

The initial internal state for the filter x_initial. Given this initial state, the initial output is given by

Inputs and Outputs

The first input is the filter input.

The second input is the numerator coefficient.

The third input is the denominator coefficient.

The output is the filter output

Force Conversion

Incidence & Airspeed