scholarly journals Discrete system order reduction using multipoint step response matching

2004 ◽  
Vol 170 (2) ◽  
pp. 461-466 ◽  
Author(s):  
S. Mukherjee ◽  
Satakshi ◽  
R.C. Mittal
Keyword(s):  
Discrete System ◽  
Order Reduction ◽  
Step Response ◽  
System Order Reduction ◽  
System Order

Enhancement of the least-squares Padé method for discrete systems

2000 ◽  
Vol 214 (2) ◽  
pp. 139-148 ◽  
Author(s):  
T N Lucas
Keyword(s):  
Least Squares ◽  
Discrete System ◽  
Order Reduction ◽  
Discrete Systems ◽  
Markov Parameters ◽  
Reduced Models ◽  
Padé Method ◽  
System Order Reduction ◽  
System Order

The least-squares Padé method for discrete system order reduction is further enhanced. First, it is shown how the method may be extended to produce true least-squares approximations between the time responses of the full and reduced models. Second, it is shown how different stable reduced degree denominator polynomials can be generated from subsets of the system Markov parameters. Examples are given to illustrate these enhancements to the method.

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