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首页> 外文期刊>International Journal of Satellite Communications and Networking >Rigorous analysis on performance of LEO satellite ground station in urban environment
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Rigorous analysis on performance of LEO satellite ground station in urban environment

机译：LEO卫星地面站在城市环境中性能的严格分析

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Microsatellites in low Earth orbits (LEOs) have been in use for the past two decades. LEO satellites are used for public communication and also for scientific purposes, and the orbits vary with the type of satellites and the primary purposes. LEO scientific satellites have a variety of applications, including Earth surveillance and astronomy applications. These satellites provide opportunities for investigations for which alternative techniques are either difficult or impossible to apply. Thus, it may be expected that such missions will be further developed in the near future especially in fields where similar experiments by purely Earth-based means are impracticable. Ground stations have to be established in order to communicate with such satellites, and the quality of communication depends on the performance of the satellite ground station, in addition to that of the satellite. Before the implementation of the ground station, analyses related to environmental factors have to be considered, especially in urban areas. Rain effects, the impact of intermodulation products, and contact time duration at low elevation angles are some of the aspects that are considered in this work and which influence the final decisions on the design of the ground station. Measurements on the ground station based on Sun flux density are described, which provide an opportunity to check the performance of the ground station.
机译：近二十年来，低地球轨道（LEO）中的微卫星一直在使用。 LEO卫星用于公共通信，也用于科学目的，其轨道随卫星的类型和主要目的而变化。 LEO科学卫星具有多种应用，包括地球监视和天文学应用。这些卫星为难以或不可能应用替代技术的调查提供了机会。因此，可以预期的是，在不久的将来，这类任务将得到进一步发展，特别是在无法通过纯地球手段进行类似实验的领域。必须建立地面站才能与此类卫星通信，通信质量取决于卫星地面站的性能，以及卫星的性能。在实施地面站之前，必须考虑与环境因素有关的分析，尤其是在城市地区。降雨影响，互调产物的影响以及低仰角下的接触持续时间是本工作要考虑的一些方面，这些方面会影响地面站设计的最终决策。描述了基于太阳通量密度的地面站测量，这为检查地面站的性能提供了机会。

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