Analog simulation of sampled-data systems

The importance of analog simulation to control system analysis and synthesis increases as a function of system complexity. Adaptation of these techniques to sampled-data systems is particularly useful since, in addition to establishing control parameters, determination of proper sampling rate is often critical to system stability. Sampled-data systems are considered which use discontinuous amplitude-modulated data as well as digital processing units. Simulation is determined on the basis of theoretical considerations and relay circuitry is presented which has found effective utilization in analog simulation of sampled-data systems.