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

fYear

2011

fDate

19-22 Aug. 2011

Firstpage

1355

Lastpage

1358

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic Science, Electric Engineering and Computer (MEC), 2011 International Conference on

Conference_Location

Jilin

Print_ISBN

978-1-61284-719-1

Type

conf

DOI

10.1109/MEC.2011.6025721

Filename

6025721