Sampled-Data System Approach to Model Time-Division Switches
C. K. Liu, T. L. Wang · Bell System Technical Journal · 1974
The sampling switch in a time-division switching system is, in general, different from the sampler of sampled-data system theory. A general approach is developed for characterizing such a switch as an ideal sampler plus some modified transfer functions. With this approach, a time-division switching circuit containing a sampling switch can be converted easily to a typical sampled-data system, and the well-established mathematical tools for sampled-data systems, such as the Z-transform, can be applied. In addition, a simplified approach is described that will lead to a very good approximation of the “exact” solution.