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基于T-S模糊模型的非线性系统状态估计

State Estimation of Nonlinear System based on T-S Fuzzy Model
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摘要 现实世界中的动力系统大多是非线性的,而非线性系统的状态估计方法目前主要有扩展卡尔曼滤波,无味滤波,粒子滤波等,但它们对于非线性程度很高的系统滤波结果不是很理想。若用模糊规则模型去逼近非线性系统,基于规则理论去寻求状态的估计,则估计性能能够得到较大的改善。将模糊推理理论与Kalman滤波结合,用线性的方法逼近非线性模型,提出一种对非线性系统目标状态估计的新方法,给出了具体的处理过程。 State estimation methods for nonlinear systems mainly includes extended Kalman filter,unscented Kalman filter,particle filtering.Howerer,for highly nonlinear systems,if a model based on fuzzy rules is used to approximate it,and rule-based theories to seek the state estimates,the estimation performance would be much better.A numerical simulation with the proposed method is given in this paper.
作者 张永锋
出处 《通信技术》 2010年第11期162-164,共3页 Communications Technology
基金 国家自然科学基金资助项目(批准号:10926175)
关键词 状态估计 模糊卡尔曼滤波 模糊系统 计算机仿真 state estimation fuzzy Kalman filter fuzzy system computer simulation
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参考文献9

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