On the Input- Output Modeling of Nonperiodic Sampling Systems

In this paper, it is shown that non-periodic sampling systems may be modeled in the time domain by a difference matrix equation which may be manipulated in the same way as in the case of periodic sampling, the output sequence may be computed by means of finite combinations of previous inputs and outputs by using a finite set of time-varying parameters which are dependent on the parameters of the continuous transfer matrix and on a finite set of previous sampling periods equal to the order of the system.