检索结果-南通市图书馆

Extreme Wave Simulation with iterative adaptive approach in Numerical Wave Flume

China Ocean Engineering 2021年第1期35卷 61-71页

作者： LIU Dian-yong Naval Architecture and Ocean Engineering College Dalian Maritime UniversityDalian 116026China State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116023China

Extreme wave is highly nonlinear and may occur due to diverse reasons *** simulated results of extreme wave based on wave focusing,which were generated using high order spectrum method,are *** influences of the steepness,frequency bandwidth as well as frequency spectrum on focusing position shift were examined,showing that they can affect the wave focusing ***,controlled accurate generation of extreme wave at a predefined position in wave flume is a difficult but important *** this paper,an iterative adaptive approach is applied using linear dispersion theory to optimize the control signal of the *** performance of the proposed approach is numerically investigated for a wide variety of *** results demonstrate that this approach can reproduce accurate wave focusing effectively.

关键词： extreme wave wave focusing numerical wave flume iterative adaptive approach

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Virtual Uniform Linear iterative adaptive approach for Robust adaptive Beamforming

Virtual Uniform Linear Iterative Adaptive Approach for Robus...

引用

第三十九届中国控制会议

作者： Zhen Meng Weidong Zhou College of Automation Harbin Engineering University

In this paper, we propose a virtual uniform linear iterative adaptive approach（VUL-IAA） method to design robust adaptive beamformer using coprime array. We enlarge the array aperture of coprime physical array by generating a longer virtual coarray. However, the data vector in the non-uniform virtual coarray appears as one snapshot. We propose the VUL-IAA method to directly process the one-snapshot data in the longest virtual uniform linear array（VULA）. By doing this, the operations of recovering the rank of the VULA covariance matrix and constructing its full-rank version are totally avoided. Moreover, the VUL-IAA method can estimate precise powers for incident signals, which can be used to reconstruct the interference covariance matrix and determine the steering vector of signal-of-interest. We compute the weight vector of the proposed beamformer based on the coprime physical array. Simulation results show that the proposed beamformer can mitigate typical mismatches.

关键词： Robust adaptive beamforming Virtual uniform linear iterative adaptive approach Power estimation

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：