Now showing items 1-5 of 5

  • The bilinear method: a new stability-preserving order reduction approach 

    Lucas, T. Nigel (Sage Publications, 2002)
    A new way of reducing the order of linear system transfer functions is presented. It guarantees stability in the approximation of stable systems and differs from existing stability-preserving methods by taking into account ...
  • Enhancement of the least-squares Padé method for discrete systems 

    Lucas, T. Nigel (Sage Publications, 2000-03)
    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 ...
  • Flexible time-response matching in discrete model reduction 

    Lucas, T. Nigel (Sage Publications, 2000-08)
    A simple way to match the time responses of the full- and reduced-order models at arbitrary sampling points is given for discrete-time systems. It is seen to be a natural extension of the Padé methods and is particularly ...
  • Model reduction by generalised least-squares method 

    Lucas, T. Nigel; Munro, A. R. (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. ...
  • Shift-and-scale model reduction: an alternative stability-preserving approach 

    Lucas, T. Nigel (Sage Publications, 2004)
    A new stability-preserving model order-reduction method is presented for continuous-time systems. It makes use of the relatively new idea of transformed whole-system parameter matching for calculating the poles of the ...