摘要
卫星传输系统链路计算是设计地球站时,进行的信号传输质量和各种技术参数的定量分析过程,涉及到项目较多.通过计算,用户可以合理选择参数,如改变天线大小或增益、调制方式,选用高质量LNB或BUC、低损耗电缆等,来满足系统质量、价格、可扩展性等方面的要求.本文详细介绍了卫星传输链路预算的过程,并对结果进行了分析.
The link budget of the satellite communication is the process which deals with all sorts of the technical parameters for the station design.By calculating and analysis,the user can reasonably change parameters such as antenna size or change the antenna gain,the modulation,the choice of high quality LNB or BUC,and the low-loss cables to meet the quality,price,scalability,and other requirements of the system.This paper describes in detail the process of the satellite transmission link budget and the results are analyzed.
出处
《三峡大学学报（自然科学版）》
CAS
2011年第3期39-42,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金(60972162)
湖北省教育厅重大项目(Z20081301)
宜昌市科技项目(A2010-302-07)
关键词
通信卫星
链路预算
载噪比
应急通信
communication satellites
link budget
C/N
emergency communications
