step response of a signal

hey,

how can I insert a step signal type which isn't equal to one, but of a type const*1(t).

the command step(sys) gives the response for const=1.

Answer 1

[Star Strider]

Your ‘const*t’ signal is a ramp function. Probably the easiest way to do what you want is to use the lsim function:

s = tf('s');
H = s/(s^2 + 1);                        % Arbitrary System

t = linspace(0,100);                    % Time Vector
Const = 4.2;
u = Const * t;                          % Ramp Function

figure
lsim(H, u, t);                          % System Response To Ramp

Make necessary changes to the ‘t’ vector and ‘Const’ to work with your code.