DocumentCode
1548881
Title
Novel stable higher order s-to-z transforms
Author
Al-Alaoui, Mohamad Adnan
Author_Institution
Dept. of Electr. & Comput. Eng., American Univ. of Beirut, Lebanon
Volume
48
Issue
11
fYear
2001
fDate
11/1/2001 12:00:00 AM
Firstpage
1326
Lastpage
1329
Abstract
Novel stable higher order s-to-z transforms are introduced. A class of second-order stable transforms is obtained by stabilizing the class of second-order integrators resulting from interpolating the Simpson and the trapezoidal rules. In addition new transforms are obtained by stabilizing the s-to-z mapping functions obtained from the Adams-Moulton numerical integration formulas. The approach is general and can be applied to other integration rules to obtain stable transforms. An important advantage of the new stabilized rules is that they yield minimum phase filters when applied to analog all-pole filters
Keywords
filtering theory; integration; interpolation; numerical stability; transforms; Adams-Moulton numerical integration formulas; analog all-pole filters; differentiators; digital filters; digital signal processing; interpolation; minimum phase filters; s-to-z mapping functions; s-to-z transforms; second-order integrators; second-order stable transforms; stabilized rules; stable higher order transforms; trapezoidal rule; Approximation methods; Circuits; Discrete transforms; Filters; H infinity control; Laplace equations; Poles and zeros; Sampling methods; Taylor series; Transfer functions;
fLanguage
English
Journal_Title
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
Publisher
ieee
ISSN
1057-7122
Type
jour
DOI
10.1109/81.964421
Filename
964421
Link To Document