摘要
介绍了风云二号(FY-2)气象卫星数传与云图广播转发器分系统的功能、组成,以及频率配置、传输信号特性和增益与功率等主要技术指标。给出了C星分系统转发器的技术改进。阐明了采用的收发多工器、射电天文保护滤波器、固体功率放大器(SSPA)和功能转换开关等关键技术。测试结果和在轨运行状况表明,C星数传与云图广播转发器的性能符合设计任务书要求,在轨运行正常稳定。
The function and composition of the transponder subsystem of data transmitting and clouds image broadcasting for FY-2 meteorological satellite were introduced in this paper, and so were the major performances such as frequency distribution, transmit signal characteristic, gain and power. The improvement of FY-2C satellite was given. The key technologies of multiplexer, radio celestial protective filter, solid state power amplifier and function exchange switch were also presented. The test result and on-orbit operation showed that the performance of the transponder subsystem of data transmitting and clouds image broadcasting for C satellite had met the requirements. The subsystem operated normally.
出处
《上海航天》
北大核心
2005年第B12期42-47,103,共7页
Aerospace Shanghai
关键词
风云二号气象卫星
数传与云图广播转发器
技术指标
功能
改进
FY-2 meteorological satellite
Transponder of data transmission and clouds image broadcasting
Performance
Function Improvement
