| 一类非均匀采样系统最小二乘迭代辨识 |
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| 引用本文： | 蒋红霞,王金海,丁锋. 一类非均匀采样系统最小二乘迭代辨识[J]. 系统工程与电子技术, 2008, 30(8) |
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| 作者姓名： | 蒋红霞 王金海 丁锋 |
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| 作者单位： | 江南大学通信与信息工程研究中心,江苏,无锡,214122 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金，江南大学创新团队发展计划资助课题 |
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| 摘 要： | 阐述了非均匀多率采样方案,利用提升技术推导出非均匀多率采样系统的提升状态空间模型,进一步获得了对应的输入输出表达.针对辨识模型信息向量中存在未知中间变量的困难,基于交互估计理论与迭代搜索原理,提出了非均匀多率系统的最小二乘迭代辨识方法.最后进了仿真比较研究,以说明提出算法的优点.
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| 关 键 词： | 多率系统 参数估计 迭代辨识 提升技术 状态空间模型 传递函数模型 |
Least-square-iterative identification of a class of non-uniform sampled-data systems |
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| JIANG Hong-xia,WANG Jin-hai,DING Feng. Least-square-iterative identification of a class of non-uniform sampled-data systems[J]. System Engineering and Electronics, 2008, 30(8) |
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| Authors: | JIANG Hong-xia WANG Jin-hai DING Feng |
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| Abstract: | The sampling patterns of non-uniform sampling systems are described,and the lifted state space model for non-uniform multirate systems by using the lifting technique is derived.Further,the corresponding input-output relationship is obtained.For difficulties arising from unmeasurable information vectors in the identification model,a least-square-iterative identification method for the non-uniform multirate system based on the interactive estimation theory and iterative search principle is presented.Finally,a simulated example is given to show the merits of the algorithm. |
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| Keywords: | multirate system parameter estimation iterative identification lifting technique statespace model transfer function model |
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