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高阶系统的降阶是十分重要的问题。本文介绍了一种实用方法,即利用状态矩阵的特征值和特征向量在总响应中所起的作用,来简化状态模型。文中较详细地说明了思路,并给出了算法、程序以及一个9阶锅炉模型的简化实例。
Downscaling of higher order systems is a very important issue. This paper presents a practical approach to simplify the state model by taking advantage of the eigenvalues of the state matrix and the role of eigenvectors in the overall response. The paper explains the idea in more detail and gives a simplified example of the algorithm, program and a 9-stage boiler model.