I am using Julia 0.5.2 I am modeling a continuous time RLC circuit in the s domain. I am modeling a digital controller in the z domain. I tried multiplying the 2 transfer functions together to get the open loop transfer function, but I get this message: Sampling time mismatch in *(::ControlSystems.TransferFunction{ControlSystems.SisoRational}, ::ControlSystems.TransferFunction{ControlSystems ... Extra example: spring-mass-damper system with a transfer function So far we have been working with simulations for time-based systems. However, Simulink is commonly used for simulating systems in the frequency domain by creating transfer functions from Laplace transforms.

BLOCK DIAGRAM CONSTRUCTION. As mentioned previously, the block diagram representation of the system is made up of various type of icons. Basically, one has to specify the model of the system (state space, discrete, transfer functions, nonlinear ODE's, etc), the input (source) to the system, and where the output (sink) of the simulation of the system will go.

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