动态系统的频率点拟合建模
A Method for Dynamic System Modeling by Frequency-Point-Fitting
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摘要: 本文提出一种人机交互的动态系统频率点拟合建模方法,给出模型信息资源的分配和选 点原则,该方法在选点问题上具有"鲁棒性",可以直接应用于系统辨识和模型阶降.同过去方 法比较,该方法算工作量小,拟合精度较高.论文还简介了基于点拟合建模的自适应控制方 案,显示出该方法的应用潜力.Abstract: In this paper, an interactive method for dynamic system modeling by frequency-point-fitting is presented. The concepts of the allocation of information resources and the criterion for choosing fitting points are given. The new method has robustness in choosing fitting points. It can be directly used for identification or model reduction with much simpler computation but higher accuracy under error indexes when compared with previous methods. An adaptive control strategy based on this method is also introduced to exhibit its wide application potentials.
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