摘要
UHF频段卫星通信具有多方面的突出优势,目前已广泛应用于窄带移动卫星通信中。该文采用正推法,介绍了一种UHF频段卫星链路的计算,包括天线、馈线、低噪放、超导接收机等组成单元,并对G/T值、C/N等关键技术指标作了分析和论证,最后对卫星链路进行了实际测试,测试结果表明该卫星链路较好的满足了系统需求,对工程技术人员有一定的参考价值。
Satellite communication in UHF band has many outstanding advantages, and it has been widely used in narrowband mobile satellite communication. Forward projection method is used in this paper, and link calculation of satellite reconnaissance in UHF-band is introduced. The link system is composed of antenna, low noise amplifier, feeder, and superconducting receiver unit. The key technical indicators of G/T and C/N are demonstrated. At last, the satellite link in UHF-band has been tested practically, and the test results show that the satellite link meets the design requirements. It has some reference value to engineers.
出处
《电子技术（上海）》
2018年第1期29-31,共3页
Electronic Technology
基金
国防重点实验室基金(9140C130201150C13065)
关键词
UHF频段
卫星侦察
链路计算
天线增益与噪声温度比
载噪比
UHF-band
. satellite reconnaissance
link calculation
antenna gain to noise temperature ratio（G/T）
carder to noise ratio （C/N）
