Title :
Accuracy enhancing methods for the frequency-weighted balancing related model reduction
Author :
Varga, Andras ; Anderson, Brian D O
Author_Institution :
Inst. of Robotics & Syst. Dynamics, German Aerosp. Center, Wessling, Germany
Abstract :
In this paper we develop computational techniques with enhanced accuracy for two frequency-weighted model reduction approaches, namely, balanced truncation, and singular perturbation approximation. New stability-enforcing choices of the frequency-weighted grammians can guarantee the stability of reduced models for two-sided frequency weights. Several numerical examples show the effectiveness of the new approximation techniques
Keywords :
approximation theory; reduced order systems; singularly perturbed systems; stability; accuracy enhancing methods; balanced truncation; computational techniques; frequency-weighted balancing related model reduction; frequency-weighted grammians; reduced models; singular perturbation approximation; stability; stability-enforcing choices; two-sided frequency weights; Aerodynamics; Australia; Bismuth; Frequency; Microcomputers; Reduced order systems; Reliability engineering; Robots; Robustness; Stability;
Conference_Titel :
Decision and Control, 2001. Proceedings of the 40th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-7061-9
DOI :
10.1109/.2001.980430
