Model reduction using a frequency-limited -cost
نویسندگان
چکیده
منابع مشابه
Model Reduction using a Frequency-Limited H2-Cost
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 H2 like cost function. An important contribution in 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 ...
متن کاملModel Reduction using a Frequency-Limited H2-Cost, Report no. LiTH-ISY-R-3045
We propose a method for model reduction on a given frequency range, without having to specify input and output filter weights. The method uses a nonlinear optimization approach where we formulate a H2 like cost function which only takes the given frequency range into account. We derive a gradient of the proposed cost function which enables us to use off-the-shelf optimization software.
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An improved frequency domain interval Gramianbased model reduction scheme for discrete time systems is presented. It is first shown that two of the main results presented in the model reduction method of [20] are incorrect. Improved methods which overcomes these shortcomings are then presented. Improved methods not only yields stable reduced-order models but also have easily computable frequenc...
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چکیده ندارد.
Frequency-Limited H∞ Model Reduction for Positive Systems
In this paper, the problem of frequency-limited H∞ model reduction for positive linear time-invariant systems is investigated. Specifically, our goal is to find a stable positive reduced-order model for a given positive system such that the H∞ norm of the error system is bounded over a frequency interval of interest. A new condition in terms of matrix inequality is developed for characterizing ...
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ژورنال
عنوان ژورنال: Systems & Control Letters
سال: 2014
ISSN: 0167-6911
DOI: 10.1016/j.sysconle.2014.02.004