A tool for synthesizing rain attenuation time series in LEO Earth observation satellite downlinks at Ka band
A tool for synthesizing rain attenuation time series in LEO Earth observation satellite downlinks at Ka band
复制标题
LEO地球观测卫星Ka频段下行链路雨衰时间序列合成工具
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
A. Panagopoulos
中科院分区：
文献类型：
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作者：
Pantelis;A. Panagopoulos
通过低地球轨道（LEO）卫星对地球观测（EO）数据的需求迅速增加，将相应系统的运行推向了更高的频段，特别是Ka波段，在那里有更多的频谱可用，但大气效应与低地球轨道卫星的运动相结合形成了新的传播环境。不幸的是，由于缺乏可用的实验数据，似乎很难描述这种新的传播环境。因此，与最近的建模工作类似，在这项工作中，我们依赖于来自同一频段运行的固定地球同步卫星频道的成熟想法，并在过程中做出合理的假设和修改。具体来说，这一贡献的目的是为Ka波段LEO EO卫星下行链路的雨衰减时间序列的合成提供一个工具。
Rapidly increasing requirements for Earth Observation (EO) data via Low Earth Orbit (LEO) satellites push operation of the corresponding systems to higher frequency bands and particularly the Ka band, where more spectrum is available but atmospheric effects combined with the motion of the LEO satellite form a new propagation environment. Unfortunately, due to the lack of available experimental data, it seems difficult to characterize this new propagation environment. Therefore, similar to recent modeling efforts, in this work we rely on mature ideas coming from fixed geostationary (GEO) satellite channels operating in the same band making reasonable assumptions and modifications along the course. Specifically, the purpose of this contribution is to provide a tool for synthesizing rain attenuation time series in LEO EO satellite downlinks at Ka band.