摘要
在海岛礁地磁测量中,针对一些岛屿面积较小、地磁测点与方位点边长较短的情况,讨论了GPS短边真北方位测量的具体解算方法,分析了短边GPS方位测量的精度情况,并提出了海岛礁地磁测量短边真北方位角测量的一些具体方法和建议,试验证明方法能提高海岛礁地磁测量的效率。
The calculation method of GPS short side＇s true north bearing was discussed,the azimuth angle survey accuracy of the short side was also analyzed in the paper.According to the island reef geomagnetic survey work experience,some methods and advice of short side＇s true north bearing survey were summarized.The experimental results show that the efficiency of geomagnetic survey is enhanced.
出处
《海洋测绘》
2012年第2期15-17,21,共4页
Hydrographic Surveying and Charting
关键词
地磁测量
磁偏角
GPS
方位角
真北方向
geomagnetic survey
magnetic declination angle
global position system
azimuth angle
true north
