摘要
基于地磁对电离层的影响,尝试利用GPS信号和Klobuchar模型估计地磁北极在地理坐标系中的位置,并建立了相应的数学模型。理论分析和数据验证了方法的可行性,如果进行Klobuchar模型的区域化改进和算法的完善,将更有利于地磁北极估计的可靠性和估计精度的提高。
On the basis of the influence of geomagnetic field on ionosphere,the position of geomagnetic north pole in geographic coordinates was estimated by using GPS signal and Klobuchar model,and the corresponding mathematical model was established.This method is validated to be feasible by theoretical analysis and simulated data,and it is further summarized that the regionalized improved Klobuchar model and perfect arithmetic will be in favor of the precision and reliability of estimating geomagnetic north pole.
出处
《大地测量与地球动力学》
CSCD
北大核心
2011年第3期90-93,共4页
Journal of Geodesy and Geodynamics
基金
海岛(礁)测绘技术国家测绘局重点实验室资助项目(2010B02
2009B01)
中国测绘科学研究院基本科研业务项目(7771119)
国家自然科学基金(40904001)
