学术论文

      近年来我国GNSS电离层延迟精确建模及修正研究进展

      Research Progress of Precise Models and Correction for GNSS Ionospheric Delay in China over Recent Years

      摘要:
      空间电离层是影响全球卫星导航系统(GNSS)应用服务性能最棘手的误差源之一.近几十年来,随着地基/空基GNSS数据的日益丰富,国内外学者发展并提出了多种重要技术措施修正、削弱电离层延迟对各类GNSS用户导航定位的影响,取得了重要进展和成果.本文在系统总结GNSS空间电离层延迟影响修正研究成果的基础上,从电离层延迟信息精确提取、建模及误差分析、实时改正方法等几个方面,重点介绍了近年来我国在这一领域的主要研究进展情况.
      Abstract:
      The ionosphere effects account for one of the most challenging error sources that can severely affect the performance of Global Navigation Satellite System (GNSS) applications.In the past a few decades,owing to the fact that the ground-and space-based GNSS data are rapidly growing,many researchers have developed and presented a series of theories,methods and techniques to weaken or eliminate the impact of ionospheric delay on GNSS user navigation and positioning,and achieved a number of important achievements and progress.In this paper,a brief review is made towards study on GNSS ionospheric delay correction in China over recent years,with special attention focused on accurate extraction of ionospheric delay,modeling TEC and error analysis,and real-time ionospheric delay correction methods.
      Author: YUAN Yunbin HUO Xingliang ZHANG Baocheng
      作者单位: 中国科学院测量与地球物理研究所大地测量与地球动力学国家重点实验室,湖北武汉,430077
      刊 名: 测绘学报 ISTICEIPKU
      年,卷(期): 2017, 46(10)
      分类号: P228
      在线出版日期: 2018年1月8日
      基金项目: 国家重点研发计划,国家自然科学基金重点项目,国家自然科学基金创新研究群体,国家自然科学基金(41574033,41674022)The National Key Research and Development Program of China,The State Key Program of National Natural Science of China,The Science Fund for Creative Research Groups of the National Natural Science Foundation of China,The National Natural Science Foundation of China