Although the representation of systems in terms of transfer functions is a very convenient way to describe control systems and their individual components, there is an alternative form for writing the system model. This common alternative is referred to as a state variable representation of the system. There are some advantages and disadvantages of using either transfer function or state variable representation; however, to appreciate the differences we must first learn what a state variable is and how to use state variable notation.
KeywordsState Space Model Transfer Function Model State Space System Transfer Function Matrix State Variable Model
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