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“火星快车”的三程多普勒观测(英文) 被引量:1

Three-way Doppler Observation of Mars Express
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摘要 利用中国VLBI网无线电天线和数字信号采集系统跟踪测量了欧洲航天局的"火星快车"(MEX)探测器,并研发了相应的三程多普勒信号提取算法和软件。对探测器8.4GHz下行载波1s采样的最终结果显示,多普勒数据随机噪声为1mm/s,这些数据已成功应用于对火星探测器的轨道确定。 Using the radio telescopes in Chinese VLBI Net (CVN) and sampling board,we have developed algorithms that extract three-way Doppler information from the radio tracking data of Mars Express (MEX) – a Martian probe that belongs to European Space Agency (ESA). Our latest results indicate that Doppler residuals of three-way Doppler are about 1mm/s in 1s integration time,relative to an 8.4GHz carrier. Three-way Doppler data have been used in the orbit determination of Mars Express.
出处 《航天器工程》 2010年第6期21-25,共5页 Spacecraft Engineering
基金 国家自然科学基金(10973031) 国家高技术研究发展计划课题(2008AA12A210) 中科院方向性项目等支持
关键词 无线电跟踪 火星快车 三程多普勒 radio tracking Mars Express three-way Doppler
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参考文献9

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