| 非线性BP算法在系统辨识中的应用 |
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| 引用本文： | 刘英敏 吴沧浦. 非线性BP算法在系统辨识中的应用[J]. 北京理工大学学报, 2000, 20(6): 712-714 |
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| 作者姓名： | 刘英敏 吴沧浦 |
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| 作者单位： | 北京理工大学,自动控制系,北京,100081 |
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| 基金项目： | 国家自然科学基金;69674005; |
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| 摘 要： | 研究利用非线性ＢＰ算法训练多层前馈神经网络，对非线性动力系统进行建模，给出了基于非线性ＢＰ算法的系统辨识计算步骤，通过仿真计算表明，基于非线性ＢＰ算法的系统辨识至少可以获得与常规ＢＰ算法同样的效果，因为不需要计算神经元激活函数的导函数，文中的结果可以更小的代价实现基于神经网络的控制器。
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| 关 键 词： | 非线性BP算法 系统辨识 前馈神经网络 NBP算法 |
Application of NBP Algorithm in System Identification |
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| LIU Ying min,WU Cang pu. Application of NBP Algorithm in System Identification[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2000, 20(6): 712-714 |
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| Authors: | LIU Ying min WU Cang pu |
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| Abstract: | The problem of how to identify the nonlinear dynamic process using multilayer feedforward NN, trained by nonlinear BP algorithm, is investigated. The procedure of the identification method based on NBP networks is also given. Simulation results show that the performance of the model obtained with NBP network is at least as good as the normal BP network. Since NBP algorithm avoids computations of the derivative of neurons' activations, the results can be utilized to design NN based controllers at less cost than those based on normal BP. |
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| Keywords: | nonlinear BP algorithm system identification feedforward neural networks |
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