2

Continuous-Time Systems

2.1INTRODUCTION

Before we start our exploration of simulation, it is important for us to have some basic knowledge of how linear time-invariant (LTI) dynamic systems behave. The analysis of linear systems and how they respond to elementary types of inputs is straightforward. Linear systems appear as building blocks in more complex systems. Our intuitive understanding of the entire system is enhanced by recognizing the fundamental behavior of its linear components. Control systems, for example, are oftentimes composed of linear continuous-time components interconnected to produce a desirable response to commanded as well as uncontrollable or disturbance inputs.

Speaking of control systems, the mathematical model of the ...

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