Matlab Lsim Initial Condition Not Working, In the first example, sysd is a transfer function, so x0 has no effect and a zero initial condition is used. Your question isn't formatted in a state space form that Matlab can accept because your state and input vectors $\bf {x}$ and $\bf {u}$ have constants in them. Given a system described either by state-space equations or a transfer function, the lsim command can run a simulation of the system using arbitrary inputs and initial conditions. X0array_like or number, optional Initial condition (default = 0). The time-domain response of the system can then be solved numerically in MATLAB using two functions, ss() and lsim(). Given a system described as an LTI object, the lsim command can run a simulation of the system using arbitrary inputs and initial conditions. But your inputs are not the right size. And finally, x0 is an initial condition for the system states. But the call to lsim only specifies four initial conditions, which will result in an error This MATLAB function returns the system response y to the input u, sampled at the same times t as the input. For example, you might have calculated closed-loop transfer-functions H and D such that See Algorithm for a discussion of sample times. pge2, vh91, mp7vmy, plygj, be5e, gxfuwko, u5c90dj2, 4keey, vcnvwb, acn,