Title :
Research on transforming continuous-time system into discrete-time system
Author :
Li Jian-Zhong ; Li Yi ; Gu Guo-hua ; Sun Ji-hong
Author_Institution :
Huayin WeaponryTest Center, Huayin, China
Abstract :
The most popular technique of transforming continuous-time system into discrete-time system is Euler substitution method or Tustin substitution method. In these methods, the relationship between the differential coefficient operator s and displacement operator z is fixed, and the transforming precision isn´t high. So a non-standard substituted method based on different relationship between the differential coefficient operator s and displacement operator z is advanced, and a group of equation is deduced. The simulation indicated that non-standard substituted method which compared with the standard substituted method is more flexible and has high precision than Euler and Tustin method.
Keywords :
continuous time systems; discrete time systems; Euler substitution method; Tustin substitution method; continuous time system; differential coefficient operator; discrete time system; displacement operator; nonstandard substituted method; Approximation methods; Continuous time systems; Difference equations; Differential equations; Mathematical model; Polynomials; continuous-time system; euler; substituted method; tutin;
Conference_Titel :
Mechatronic Science, Electric Engineering and Computer (MEC), 2011 International Conference on
Conference_Location :
Jilin
Print_ISBN :
978-1-61284-719-1
DOI :
10.1109/MEC.2011.6025721
