摘要
针对不同测量平台下的地磁异常数据具有不同的特点,而通过一定的方法使得它们取长补短可以提高数据的质量和综合使用效率的问题。该文分析了航磁数据和船磁数据的内在关系,以船磁为基准,通过磁异常特征匹配创新性地提取得到控制点对坐标精度较低的航磁数据进行橡皮页校正,然后将校正后的航磁数据与船磁数据进行融合,实现了局部地区磁力数据的精细化。航磁数据校正的结果有了更高的坐标精度,而融合结果既能体现区域磁异常特征,又能反映出局部的细节变化,提升了数据的利用价值。
The magnetic anomaly data of different observation platforms have different characteristics,and they can take advantage of each other through certain methods to improve the data quality and comprehensive use efficiency.This article analyzed the intrinsic relations of airborne data and ship-borne data,and obtained the ground control points by matching of the magnetic anomaly feature,which were used to make rubber-sheeting transformation for the airborne data that are low precision in coordinate.Then,the transformed airborne data and ship-borne data were merged to realize the refinement of the data.The result of airborne data correction has a higher coordinate accuracy,and the merged result can not only reflect the characteristics of regional magnetic anomaly,but also reflect the local detailed changes,which greatly enhances the value of data utilization.At the same time,this method has different areas of promotion.
作者
支澳威
陈华根
ZHI Aowei;CHEN Huagen(School of Ocean and Earth Science,Tongji University,Shanghai 200092,China)
出处
《测绘科学》
CSCD
北大核心
2019年第12期14-20,34,共8页
Science of Surveying and Mapping
基金
南北极环境综合考察与评估专项（CHINARE2012-2018-01）
关键词
不同观测平台
磁力数据
磁异常特征
橡皮页校正
融合
different observation platform
magnetic data
magnetic anomaly feature
rubbersheeting transformation
merge
