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Rain induced attenuation studies using RazakSAT space-Earth links

机译:利用RazakSAT天地链路进行降雨诱发的衰减研究

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Rain induced attenuation is the main reason for the decrease of Space-Earth communication links' received signal strength. This is more perceptible in the tropical regions due to copious heavy rainfall throughout the years. RazakSAT is a Malaysian remote sensing satellite that utilizes two frequencies which are the X-band and S-band. The X-band frequency is conventionally set aside for military or government organizations. This frequency differs from the common commercial frequencies. The attributes of X-band satellite communication hardware are expected to be designed specifically for military operations. The appropriate margin should be incorporated to ensure reliable and continual communication. Rain induced attenuation data involving S-band and X-band measurements from Malaysia RazakSAT's satellite have been analyzed. The rain attenuation at higher frequency X-band (8 GHz) was estimated from the values at 3 GHz (S-band) frequency by the use of frequency scaling equation from established models. The paper highlights the assessments of the two RazakSAT's satellite-Earth transmission link's fluctuations during precipitations. The main research objective is to derive the appropriate frequency scaling equation of S-band to X-band applicable in tropical environment.
机译:雨水引起的衰减是空地通信链路接收信号强度降低的主要原因。由于多年来降雨充沛,这在热带地区更容易察觉。 RazakSAT是马来西亚的遥感卫星,它利用X波段和S波段这两个频率。 X频带频率通常留给军事或政府组织使用。该频率不同于常见的商业频率。 X波段卫星通信硬件的属性有望专门用于军事行动。应包含适当的边距,以确保可靠和持续的通信。已经分析了由马来西亚RazakSAT卫星测得的降雨引起的衰减数据,包括S波段和X波段。通过使用已建立模型的频率缩放方程,从3 GHz(S波段)频率下的值估算出更高的X波段(8 GHz)下的降雨衰减。该论文重点介绍了两个RazakSAT卫星-地球传输链路在降水过程中的波动评估。主要研究目的是推导适用于热带环境的从S波段到X波段的合适频率比例方程。

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