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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：教务处副处长兼通识与基础教育中心主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：数学科学学院
学科：运筹学与控制论
电子邮箱：wanglei@dlut.edu.cn
Statistical optimization with nonlinear constraints and parameter identification for the cutoff height of pressure ridges
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论文类型：期刊论文
发表时间：2016-07-01
发表刊物：COMPUTATIONAL & APPLIED MATHEMATICS
收录刊物：SCIE
卷号：35
期号：2
页面范围：619-628
ISSN号：0101-8205
关键字：Statistical optimization; Parameter identification; Cutoff height; Pressure ridge
摘要：To determinate the cutoff height of pressure ridges on the sea ice surface, a statistical optimal model with nonlinear constraints is established. The performance criterion consists of two parts: the deviation between the numerical results and the measured data of the ridge height; the deviation between the numerical results and the measured data of the ridge spacing. The cutoff height is taken as the identified parameter. Then, properties of the statistical optimal model and the existence of the optimal parameter are discussed, and the optimal cutoff height is identified via an optimal algorithm. Finally, the obtained optimal cutoff height is applied to separate pressure ridges from other sea ice surface undulations in northwestern Weddell Sea of Antarctic, and the correlation between the ridge height and frequency is demonstrated. Numerical results show that our model and method are both effective than the previous works.