摘要
根据大地测量、地球物理、空间物理和导航等领域的若干重要GPS科研项目的需要,系统研究了电离层延迟的高精度模拟和改正方法。报告的内容主要涉及GPS系统的电离层延迟的高精度改正,如何通过修正静、动态单、双频用户的电离层延迟影响,进一步改善GPS测量的精度和可靠性,改进增强型GPS广域差分系统的电离层模拟及利用GPS监测电离层的理论和方法等。
Recently, according to the requirements of some important GPS research subjects in the fields of Geodesy, Geophysics, Space-Physics and Navigation in China, we studied systematically how to correct the effects of the ionosphere on GPS, with high precision and accuracy. As the parts of the main contributions, the research projects focus mainly on how to improve GPS survey by reducing ionospheric delay for dual/single frequency kinematic/static users: high accuracy correction of ionospheric delay for single/dual frequency GPS users on the earth and in space, China WAAS ionospheric modeling and the theory and method of monitoring of ionosphere using GPS.
出处
《中国科学院研究生院学报》
CAS
CSCD
2002年第2期209-214,共6页
Journal of the Graduate School of the Chinese Academy of Sciences
基金
supportedbyNNSFC(40 0 740 0 3)andChineseAccademyofSciences(KZCX2 -10 6).
关键词
GPS
全球卫星定位系统
格网电离层模型
站际分区法
电离层蚀因子法
电离层延迟
电离层监测
Global Positioning System (GPS), Grid Ionospheric Model (GIM), Absolute Plus Relative scheme (APR), Ionospheric Eclipse Factor Method (IEFM), Auto-Covariance Estimation of Variable Samples (ACEVS), Different Area for Different Stations (DADS),