Continuous system can be discretized for computer simulation. Quantized state systems (QSS) method has been used to discretize time invariant systems based on the discretization of the state space. A HLA based QSS method is proposed in this paper to address issues of real-time advancements in simulation and an aircraft control example was introduced to illustrate our method. Moreover, to simulate time varying systems, a novel approach is also proposed and exemplified with a practical case.
Song, X., Ma, Y., Zhang, W., & Wang, J. (2015). Quantized state based simulation of time invariant and time varying continuous systems. Mathematical Problems in Engineering, 2015. https://doi.org/10.1155/2015/141607