Discretization processing method of transfer function in continuous time systems, system and program therefor, and compensator and feedback control system using the same

摘要

A discretization processing method for transforming a transfer function in continuous time systems to a transfer function in discrete time systems is disclosed. To obtain the new transfer function, angular frequency omegaa of the original transfer function in continuous time systems is transformed to angular frequency omegac using the bilinear z-transform of the inverse characteristic. In the discretion processing result, the equivalent characteristics of the original transfer function in continuous time systems can be obtained by performing the bilinear z-transform against the new transfer function in continuous time systems having been obtained by the angular frequency transformation of inverse characteristic.