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嫦娥二号工程X频段测控技术 被引量:11

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摘要 深空探测任务以在远距离、弱信号条件下,实现尽可能高的通信速率和测量精度为基本目标,采用更高的射频频段是实现上述目标的主要途径之一.因此,在嫦娥二号工程中对相对于常规S频段更高的X频段测控技术进行了研究和试验验证.本文对X频段测控的优势进行了全面论述,简要介绍了嫦娥二号工程X频段测控总体设计和试验方案.根据开展的相关试验结果表明:在相同信噪比条件下,与S频段相比,X频段测速精度提高一个数量级、测距与干涉测量时延精度提高一倍;X频段月球辐射噪声引起的接收信噪比恶化值在1.6~2.7dB范围内.
出处 《中国科学:技术科学》 CSCD 北大核心 2013年第1期20-27,共8页 Scientia Sinica(Technologica)
基金 国家月球探测工程重大专项资助项目
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参考文献8

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二级参考文献36

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