航天器工程Issue(2)：84-89,6.
机载GNSS掩星观测反演大气折射率廓线研究
Profiling the Atmosphere Refractivity Using the Airborne GNSS Radio Occultation Sounding
李潇 1张训械 2李烨 1王烁 1李兴国 1吕铁军1
作者信息
- 1. 中国空间技术研究院,北京,100089
- 2. 中国科学院武汉物理与数学研究所,武汉,430071
- 折叠
摘要
Abstract
As an extended technique of GNSS radio occultation (RO), the airborne RO sounding has attracted much wider attention. In order to apply it in practical engineering, this paper firstly introduces some keystone and main features of airborne RO sounding. Then the simulation of the refractivity reversed is done and the reversed results are presented, including: establishing simulated scene by STK software; simulating airborne RO by 3D radial tracing technique to predict occultation occurring time, elevation and signal propagation feature; investigating refractivity reversed technique within the atmosphere. The simulated result is useful to airborne RO engineering. Some conclusions and prospect of airborne RO sounding are discussed. Finally, the paper points out that three technical difficulties in application are tracking weak RO signal, precisely measuring speed of airborne, and anti-jamming of reflection.关键词
全球导航定位系统/无线电掩星/机载观测/大气折射率/仿真Key words
GNSS/ radio occultation/ airborne sounding/ atmospheric refractivity/ simulation分类
天文与地球科学引用本文复制引用
李潇,张训械,李烨,王烁,李兴国,吕铁军..机载GNSS掩星观测反演大气折射率廓线研究[J].航天器工程,2011,(2):84-89,6.
