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引用次数: 0
摘要
近年来，纳米卫星在空间领域受到越来越多的关注，成为技术示范、科学研究和学术项目的非常有用的平台。其中最关键的组件之一是通信子系统。本文分析了一颗低轨道纳米卫星与拉巴特地面站之间的s波段数据链路预算。考虑到仰角的变化，该方法旨在设计一个可靠的通信子系统，并考虑相关的衰减对地星通信链路的影响。因此，利用AGI Software Tool Kit (STK)和AMSAT-IARU Link spreadsheet进行轨道设计、链路预算计算，分析俯仰角和信道编码方案对链路余量的影响。
Link Budget Analysis for a 3U Nanosatellite Operating At S-band
In recent years, nanosatellites have gained more attention in the space field, making them extremely useful platforms for technology demonstration, scientific research and academic projects. One of the most crucial components is the communication subsystem. In this paper, the S-band data link budget between a LEO nanosatellite and a ground station in Rabat is analysed. Considering the variation of the elevation angle, this new approach aims to design a reliable communication subsystem with the associated attenuation that affects the ground-to-satellite communication link. Therefore, the AGI Software Tool Kit (STK) and the AMSAT-IARU Link spreadsheet are used to design orbit, calculate link budget and analyze the impact of elevation angle and channel coding scheme on link margin.
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