| 一类MIMO状态可观测非线性系统的激励辨识 |
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| 引用本文： | 孙希平,王永骥.一类MIMO状态可观测非线性系统的激励辨识[J].南京航空航天大学学报,2006,38(Z1):108-111. |
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| 作者姓名： | 孙希平 王永骥 |
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| 作者单位： | 1. 华中科技大学控制科学与工程系,武汉,430072;湖北汽车工业学院电气工程系,湖北,十堰,442002
2. 华中科技大学控制科学与工程系,武汉,430072 |
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| 摘 要： | 研究一类多输入多输出(MIMO)状态可观测非线性系统的激励辨识问题,输入激励信号采用高斯白噪声,均匀采样获得输出状态数据;根据Girsanov定理获得系统参数的渐近无偏估计;数值仿真试验说明了该方法的有效性并发现多变量耦合辨识中的噪噪比(NNR)现象;最后给出该系统的分步激励辨识算法。
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| 关 键 词： | 非线性系统 MIMO状态可观测模型 系统激励辨识 Girsanov定理 |
| 修稿时间： | 2006年3月1日 |
Identification Approach for MIMO System with Observable States Using Driving Sign |
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| Sun Xiping,Wang Yongji.Identification Approach for MIMO System with Observable States Using Driving Sign[J].Journal of Nanjing University of Aeronautics & Astronautics,2006,38(Z1):108-111. |
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| Authors: | Sun Xiping Wang Yongji |
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| Abstract: | An identification of a multi-input multi-output(MIMO)nonlinear continuous-time system with observable states using driving sign is proposed.The driving sign uses Gauss white noise,and the out- put is evenly sampled,and the maximum likelihood estimates of the model parameters are derived by us- ing the Girsanov theorem.Numerical simulations illustrate the efficiency of the estimates and the noise- noise-ratio(NNR)phenomenon of coupling multi-variable identification appears.Finally,a step-type i- dentification algorithm is given. |
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| Keywords: | nonlinear system MIMO model with observable states identification using driving sign Girsanov theorem |
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