Title :
Discrete interval system reduction using Pade approximation to allow retention of dominant poles
Author :
Ismail, O. ; Bandyopadhyay, B. ; Gorez, R.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Bombay, India
fDate :
11/1/1997 12:00:00 AM
Abstract :
This brief presents a method of reduction for discrete interval systems using Pade approximation to allow the retention of dominant poles. For a given system, the denominator of the reduced model is formed by retaining the dominant poles of the original system, while the numerator is obtained by matching interval time moments. Two numerical examples illustrate the procedure
Keywords :
approximation theory; discrete time systems; poles and zeros; reduced order systems; Pade approximation; discrete interval system; dominant pole retention; model reduction; Approximation methods; Arithmetic; Frequency domain analysis; Optimization methods; Reduced order systems; Stability analysis; Systems engineering and theory; Time domain analysis; Transfer functions; Transient analysis;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
