空间科学学报2017，Vol.37Issue(2)：207-213,7.DOI:10.11728/cjss2017.02.207
GRO和LRO掩星事件模拟研究
Simulation Study on GRO and LRO Events
摘要
Abstract
Combining the GRO (Global Navigation Satellite System Radio Occultation) and LRO (Low Earth Orbit Radio Occultation) techniques to probe the Earth's atmosphere is a main development direction of RO (Radio Occultation).In this study,the mathematical criteria of a RO event have been described.Then the effects of the main orbit parameters of LEO satellite on the RO events amount and their global distribution have been discussed by a simulation study.The results showed that:the lower the LEO satellite orbit is,the more GRO events are;when the inclination is between 30° and 75°,there are more GRO events and their Earth coverage is higher.The LRO events distribute on the Earth evenly when the LEO-LEO RO satellite set in the polar orbits.This study can provide a scientific reference for GRO and LRO satellite constellation design.关键词
掩星事件/GRO/LRO/LEO/轨道参数Key words
Radio occultation event/Global Navigation Satellite System Radio Occultation (GRO)/Low Earth Orbit Radio Occultation (LRO)/Low Earth Orbit (LEO)/Orbit parameter分类
天文与地球科学引用本文复制引用
王树志,赵丹阳,王东伟,蔡跃荣,吴迪,柳聪亮,朱光武,白伟华,杜起飞,孙越强,夏俊明,孟祥广,王先毅..GRO和LRO掩星事件模拟研究[J].空间科学学报,2017,37(2):207-213,7.基金项目
国家自然科学基金项目(41405039,41405040,41505030)和中国科学院科研装备研制项目(YZ201129)共同资助 （41405039,41405040,41505030）
