摘要
对目前的UBBE模型进行了适当的推广,使在解决估计问题时可以考虑那些可能是误差上界的数值,并在此基础上提出了一种方法,能够通过对估计精度和可靠性进行合理的权衡确定所需估计值,实际案例研究结果表明所提方法能够较好地解决估计精度和可靠性之间的矛盾。
In order to guarantee the reliability of a model,a larger upper bound has to be set whena currently unknown but bounded error model is used to describe a practical estimation prob-lem. However,this may result in an excessive loss in estimation accuracy. An appropriateextension of the unknown but bounded error model has been given,with which an indefiniteupper error bound can be taken into account in the estimation,Accordingly,a new estima-tion model is proposed for determining an estimate by a reasonable trade-off between the ac-curacy and reliability,Practical application shows that the new method can offer a good com-promise between the accuracy and reliability.
出处
《华中理工大学学报》
CSCD
北大核心
1994年第8期38-43,共6页
Journal of Huazhong University of Science and Technology
基金
国家科委
霍英东教育基金
浙江大学工业控制技术国家重点开放实验室资助项目
关键词
鲁棒估计
系统辨识
UBBE模型
robust estimation
unknown but bounded error
system identification
parame- ter estimation
regression analysis