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作 者:蒋佳男 马忠松[1] JIANG Jianan;MA Zhongsong(Centre for Space Applications Engineering and Technology,Chinese Academy of Sciences,Key Laborat.ory of Space Applications, Chinese Academy of Scienees ,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China)
机构地区:[1]中国科学院空间应用工程与技术中心中国科学院太空应用重点实验室,北京100094 [2]中国科学院大学,北京100049
出 处:《自动化与仪器仪表》2019年第1期5-7,共3页Automation & Instrumentation
摘 要:随着卫星技术的发展,卫星种类复杂多样。不同轨道、用途、频段的卫星构成卫星端、地面站和用户终端一起组成了现代卫星通信系统。作为卫星通信电子系统的核心器件,频率合成器直接影响着整个系统的性能,因此频率合成技术的性能要求更加严苛。高性能小型化的频率合成技术成为了卫星通信系统的一个重要研究方向。文中首先阐述现代卫星通信系统的组成与卫星的工作频段特点,分析频率合成技术的作用,着重对不同种类的频率合成技术分类阐述和分析对比,最后指出了各个类别的频率合成技术的优缺点及发展趋势。For the last several decades,the type of satellite becomes complex and diverse. Satellites with different orbits,different uses and different frequency bands constitute a modern satellite communication system in company with ground stations and user terminals. As the core device in satellite communication system,the frequency synthesizer directly affects the performance of the satellite communication,for which the higher requirements on the performance of the frequency synthesis technology is put forward. The frequency synthesis technology with high performance and miniaturization has become a hot research of satellite communication system. Firstly,the composition of modern satellite communication systems and the characteristics of its working frequency bands are described,and the function of frequency synthesis technology is analyzed. Secondly,the classification and comparative analysis of the different frequency synthesis technology are emphasized. Finally,the advantages and disadvantages of frequency synthesis technology in each category and its development trend are pointed out.
分 类 号:TN91[电子电信—通信与信息系统]
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