中国天文学会学术期刊


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GPS 掩星技术低轨卫星计划的现状及进展

张大海　郭　鹏　张贵霞　严豪健　黄 珹
(中国科学院上海天文台　上海　200030)

　

摘    要

    主要介绍了几个国际上已经实施的GPS掩星计划(GPS/MET, Orsted, Sunsat, SAC--C,CHAMP)和在研的(COSMIC, ACE)低轨卫星计划的现状及取得的进展。通过总结可知，下一代GPS掩星接收器应具有体积小、质量轻(几百克)、低功耗的特点；能提供实时的卫星物理状态参数；飞行器上的自主计算和控制；星上数据通信和命令解释；所有跟踪数据应符合厘米级精密定轨的要求；能提供掩星和海洋反射实验的测量。
      


Recent Proceeding on GPS Based LEO Satellite Project

Zhang Dahai  Guo Peng  Zhang Guixia  Yan Haojian  Huang Cheng
(Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030)

　

Abstract

In this paper several international launched (GPS/MET, Orsted, Sunsat, SAC-C, CHAMP) and developing (COSMIC, ACE) low earth orbit (LEO) satellite program are reviewed. By summary, next generation GPS occultation receiver should be palm-sized, low quality(a few hundred grams), and low consuming, and it can provide real-time satellite physical parameter, onboard spacecraft computation and control, data communication and command interpretation; all tracking data can reach centimeter-level precise orbit determination ; it can support the acquisition of all occultation and ocean reflection.

    

　

       
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