卫星通信有效载荷在轨测试误差分析  

Measurement Error Analysis for In-Orbit Test of Satellite Communication Payloads

作　　者：许国庆[1] 

机构地区：[1]北京跟踪与通信技术研究所,北京100094

出　　处：《电讯技术》2009年第12期81-87,共7页Telecommunication Engineering

摘　　要：根据在轨测试系统的模型分析两个最基本的元素——功率计和耦合器的误差模型,用信号流图和微波网络S参数推导出地面站发射和接收功率测量的严格的数学表达式,采用国际计量界推行的测量结果数据处理标准《测量不确定度表达指南(GUM)》分析卫星通信有效载荷在轨测试的测量不确定度。通过包含所有误差因素在内的误差模型分析,给出了转发器在轨测试项目的测量质量评价方法和过程,可用于指导在轨测试系统的设计和测量技术。This paper analyzes the error model of two basic factors （power meter and coupler） in light of the in -orbit test （IOT） system modeling, derives strict mathematic expression of transmitting and receiving power measurement of earth station from signal flow chart and microwave network S parameters, and figures out measurement uncertainty of satellite communication payloads IOT using the latest test data processing standard ＂ Guide to Uncertainty Measurement （GUM）＂ recommended by the International Meteorology Committee. Through analysis of the error model including all available error factors, this paper works out evaluation method of measurement quality and procedures for all major test parameters and characteristics of transponder, which suggests guidance to the inorbit system design and methodology techniques.

关 键 词：通信有效载荷 在轨测试 测量不确定度 误差分析 

分 类 号：TN927[电子电信—通信与信息系统] TN06[电子电信—信息与通信工程]