检索结果-南通市图书馆

检索条件"主题词=height transformation"

共 1 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

A study of real-time tide measurement

A study of real-time tide measurement

引用

The 2nd International Conference on Environmental and Engineering Geophysics

作者： Gang Chen Xinwen Cheng Jianhu Zhao School of Engineering China University of Geosciences Wuhan 430074 China School of Geomatics and Geodesy Wuhan University Wuhan 430079 China

＜正＞Tidal level plays a very important role in hydrographic survey for providing a vertical reference surface. Conventional tide measurement only generates a separate tide at each tide gauge, and can not meet completely with the requirement of continuous, precise and dynamitic hydrographic survey. It is necessary to look for a new method to acquire real-time tidal level when surveying vessel is cruising. The high continuity and credibility of GPS carrier phase differential technique can provide a possibility to overcome these shortcomings of the conventional method. In the paper, the GPS tidal level is acquired finally by time offset （delay） correction, attitude correction, height transformation, draft correction and a data filter. Time offset correction ensures attitude parameters derived from multibeam sounding system synchronization with GPS vertical solution. Attitude correction can eliminate the effect of attitude and transfer the height of GPS antenna to reference point （RP）. In order to calculate the instantaneous height of water surface, a draft correction also should be added into the correction. Tidal level should be a stable water surface within short time period. Thus, a low-pass filter needs to be implemented for the elimination of noise and the extraction of the long-period tidal level. By above processing, Finally, GPS tide solution is achieved. The kinematical GPS tidal level measurement method is implemented in an experiment. RTK and PPK are adopted in the experiment. GPS tide solutions and the tidal level observed at tide gauges are compared and analysed in the paper. The statistic result of the difference between the two tidal level solutions shows that GPS tidal level solutions have less than ±3 centimetres of standard bias with respect to tidal readings, and also proves that the methods of GPS real-time tide measurement and corresponding data processing are feasible and credible.

关键词： RTK (Real Time Kinematic) PPK (Post Processing Kinematic) tidal level height transformation

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

全选清除本页清除全部题录导出标记到“检索档案”

共1页 << < 1 > >>

回到顶部

执行限定条件

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

作者

语言

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

作者

语言

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：