摘要
全球电离层模型的构建是描述地球近地空间环境的重要环节。IGS提供了全球电离层图GIMs,其时间和空间的分辨率较低。研究了BERN程序代码的GIMs插值方法和格网插值算法,对比了最邻近插值、三次样条插值和双线性插值不同插值算法间的差异。程序实现了全天任意时刻全球电离层模型的三维动态演示功能。为全球电离层分布变化研究提供了动态交互的三维电离层模型,为全球电离层模型的构建和电离层形态学研究提供了一种更为逼真、可交互的电离层三维演示平台。
The construction of global ionosphere model is an important element of the near-earth space environment. IGS presents GIMs,but it has a low-resolution in time and space. The interpolating algorithms of BERN program and interpolation algorithms are used and the difference between nearest,spline and cubic interpolation algorithms are presented. The program outputs a 3 D ionosphere VR model.The platform has a function to show a dynamic and mutual 3 D ionosphere model at anytime and anywhere. Moreover,the 3 D ionosphere demo platform is realistic and exact for the construction and morphologic research of the ionosphere.
作者
杨晓云
刘代志
何恒
侯维君
李义红
YANG Xiao-yun LIU Dai-zhi HE Heng HOU Wei-jun LI Yi-hong(Rocket Force University of Engineering, Shaanxi Xi'an 710025, China)
出处
《现代防御技术》
北大核心
2017年第5期7-11,52,共6页
Modern Defence Technology
关键词
IGS
GIM
VTEC
VRML
电离层模型
虚拟现实
international GNSS service (IGS)
global ionosphere maps (GIM)
vertical total electron content (VTEC)
virtual reality modeling language (VRML)
ionosphere model
virtual reality