摘要
提出了一种基于最小二乘潮位序列分段匹配方法。通过系统误差类型分析、分段段长确定、沉降发生具体时刻确定、系统误差类型探测和修复等算法研究,实现了临时潮位站潮位资料不同系统误差的准确探测和高精度修复。
The system error contained in the temporary tidal information would have a great impact on the water level correction and computation of the theoretical bathymetrical datum, and not easy to find, especially the zero point of pressure-type tide gauges gradually sinking. This paper presents a self-segmented tide sequence matching method which is based on the least squares. Through analysis system error type, determination of length of sub-section and specific time of sinking, algorithm research of detection and repair, ultimately implement the accuracy detection and precision repair of different type of tidal system error in the temporary tide gauge, and tested by the experiment.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2012年第7期843-846,共4页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40976061
40776048
41176068)
武汉大学博士研究生科研自主基金资助项目(20102140101000005)
海岛(礁)测绘技术国家测绘地理信息局重点实验室基金资助项目(2010B07)
关键词
临时潮位站
系统误差
最小二乘
分段匹配
temporary tide gauge
system error
least squares
self-segmented matching
