The growing usage of discrete-time models to simulate continuous and sampled-data systems requires a fundamental and concise introduction in an engineering curriculum. In this paper the discrete-time models are developed from different approximations of the convolution integral representing the response of the continuous system. An example is presented to illustrate the merits of the various models.
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References
1.
SchwartzFriedland, Linear Systems, McGraw-Hill, (1965).
