Research of Bilinear Transformation in Control System

This paper put up detailed analysis and summarize about common three bilinear transformations on stability, frequently characteristic and dynamic characteristic in the control system. Three transformations have the same feature on stability analysis, and that have the distinct difference on frequently characteristic analysis and dynamic characteristic analysis. The paper also discusses the right applied conditions about the existent problems of three transformations. The material example is illuminated. It is beneficial to apply rightly bilinear transformation.