## Search

Now showing items 1-10 of 21

#### Scaled impulse energy approximation for model reduction

(Institute of Electrical and Electronics Engineers, 1988-08)

It is shown that the impulse energy approximation technique for model reduction can be improved by scaling in the frequency domain. The method remains simple to use and retains the stability property of impulse energy ...

#### Linear system reduction by the modified factor division method

(Institution of Engineering and Technology, 1986-11)

A novel method of linear system simplification is presented based on a modified factor division approach. It is seen to be more flexible than most model reduction methods in that families of reduced models may be easily ...

#### Further discussion on impulse energy approximation

(Institute of Electrical and Electronics Engineers, 1987-02)

Recent criticisms by Rao about impulse energy approximation are answered in detail. Further ideas are put forward as to how weighted energy parameters may be used to determine the reduced models for step inputs.

#### Factor division: a useful algorithm in model reduction

(Institution of Engineering and Technology, 1983-11)

An alternative approach is given for linear-system
reduction by Pade approximation to allow retention of dominant
modes. It avoids calculation of system time moments and the
solution of Pade equations by simply dividing ...

#### Frequency-domain reduction of linear systems using Schwarz approximation

(Taylor & Francis, 1983)

A frequency domain approach for reducing linear, time-invariant systems is presented which produces stable approximations of stable systems. The method is based upon the Schwarz canonical form and is shown to have a ...

#### Linear system reduction by impulse energy approximation

(Institute of Electrical and Electronics Engineers, 1985-08)

A method is given for linear system reduction which is a more general form of the Routh method. The reduced models retain stability, and a fuller contribution is made to the impulse response energy of the reduced system ...

#### Model reduction by least-squares moment matching

(Institution of Engineering and Technology, 1990-07)

Model reduction by least-squares moment matching is shown to be very sensitive to the pole distribution of the original system. Systems with poles of modulus less than unity are seen to present numerical problems. A ...

#### Model reduction by generalised least-squares method

(Institution of Engineering and Technology, 1991-07)

The method of model reduction by least-squares moment matching is generalised to include Markov parameters in the process. This is seen to enhance the flexibility of the method with very little extra computational requirement. ...

#### Efficient algorithm for reduction by continued-fraction expansion about s = 0 and s = a

(Institution of Engineering and Technology, 1983-11)

An algorithm is given for model reduction by continued-fraction expansion about the origin and a general point. It is seen to be more efficient than the existing method and has the advantage of also generating biased models. ...

#### Evaluation of scalar products of repeated integrals by Routh algorithm

(Institution of Engineering and Technology, 1988-09)

It is shown that evaluation of Gram matrix entries for model reduction information may be carried out by repeated use of the well known Routh algorithm. This procedure is seen to enhance both the understanding and ...