| A NEW APPROACH ON IDENTIFICATION OF BOUNDARY PARAMETER FOR A TWODIMENSIONAL DIFFUSION SYSTEM |
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| 作者姓名： | 胡顺菊 王国利 |
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| 作者单位： | Department of Computer and System Sciences Nankai University，Tianjin，China，Department of Computer and System Sciences，Nankai University，Tianjin，China |
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| 基金项目： | This research was supported by National Natural Science Foundation of China |
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| 摘 要： | This paper presents a new approach of the boundary parameter identification of adiffusion system.The system model is governed by a two-dimensional parabolic problem,which involves an unknown boundary parameter.Identifiability of the boundary parameterand the new approach are discussed briefly,which show that the new approach can overcomenot only the ill-posedness of the nonlinear output least square method but also the difficultyof numerical computation of the nonlinear output least square estimate due to the existenceof the local minima of the performance functional,Finally,some numerical examples aregiven.
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A NEW APPROACH ON IDENTIFICATION OF BOUNDARY PARAMETER FOR A TWODIMENSIONAL DIFFUSION SYSTEM |
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| Hu Shunju Wang Guoli.A NEW APPROACH ON IDENTIFICATION OF BOUNDARY PARAMETER FOR A TWODIMENSIONAL DIFFUSION SYSTEM[J].Journal of Systems Science and Complexity,1990(1). |
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| Authors: | Hu Shunju Wang Guoli |
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| Abstract: | This paper presents a new approach of the boundary parameter identification of adiffusion system.The system model is governed by a two-dimensional parabolic problem,which involves an unknown boundary parameter.Identifiability of the boundary parameterand the new approach are discussed briefly,which show that the new approach can overcomenot only the ill-posedness of the nonlinear output least square method but also the difficultyof numerical computation of the nonlinear output least square estimate due to the existenceof the local minima of the performance functional,Finally,some numerical examples aregiven. |
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| Keywords: | Boundary parameter identification Local minimum Distributed parameter system Diffusion system Gradient algorithm |
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