pidevajasüsteem on juhtsüsteem, mille sisendi ja väljundi juhtimisel eeldatakse, et süsteemi sisendil, muutujal ja väljundil on väärtus igal ajahetkel, A control system where the input and output is assumed to have a definite value for any moment in time. This is as opposed to discrete-time systems, where inputs and outputs are assumed to have a definite value over some interval (e.g. every second).