1. Model reduction using a frequency-limited -cost.
- Author
-
Petersson, Daniel and Löfberg, Johan
- Subjects
- *
MATHEMATICAL optimization , *COST functions , *FILTERS (Mathematics) , *MATHEMATICAL analysis , *CONTROL theory (Engineering) , *SYSTEMS theory - Abstract
Abstract: We propose a method for model reduction on a given frequency range, without the use of input and output filter weights. The method uses a nonlinear optimization approach to minimize a frequency limited like cost function. An important contribution of the paper is the derivation of the gradient of the proposed cost function. The fact that we have a closed form expression for the gradient and that considerations have been taken to make the gradient computationally efficient to compute enables us to efficiently use off-the-shelf optimization software to solve the optimization problem. [Copyright &y& Elsevier]
- Published
- 2014
- Full Text
- View/download PDF