摘要
针对星载测控应答机的接收机因受地面上行操作等因素影响,无法直接通过遥测自动化地进行在轨性能异常发现和评估的问题,文章根据两台互为备份的同体制应答机在正常情况下的自动增益控制(AGC)电平遥测数据变化存在一致性,提出了一种基于双应答机AGC电平相关系数的性能评估方法,通过计算两台应答机AGC的差异程度,从而能够反映出其中一台接收机性能是否产生偏移。文章基于实际在轨遥测数据,构建在轨评估阈值,经过在轨验证,结果表明:此方法确定了“性能异常”和“性能存疑”两个等级的评估阈值,能够准确的实现测控应答机的接收机的在轨自动化性能评估。此方法适用于卫星测控应答机的在轨管理工作中,为通过自动化手段进行测控应答机的接收机性能变化的发现及性能评估提供了有效的途径。
The receiver of the satellite-borne tracking-telemetry and command(TT&C)transponders cannot be evaluated automatically on-orbit by telemetry due to the influence of uplink operation and other factors,regarding to this problem,this paper took advantage of the consistency of automatic gain control(AGC)variation of two identical TT&C transponders.The paper designed a performance assessment method based on the correlation coefficient of AGC of two transponders.Through calculating the difference of the correlation coefficient of the transponders,the performance degradation will be found if there is an offset.At the same time,based on the actual on-orbit data of the transponders,evaluation threshold should be built.The results of the verification show that:There are two evaluation thresholds named“aberrant performance”and“unusual performance”.This method can automatically realize the performance assessment of TT&C transponder of satellite accurately.The method can be used in the on-orbit management of the TT&C transponder of satellite,and the analysis results in this paper provide an effective way to correctly evaluate the performance of the transponders automatically.
作者
刘洋
陈曦
石杰楠
谭博能
LIU Yang;CHEN Xi;SHI Jienan;TAN Boneng(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)
出处
《航天器工程》
CSCD
北大核心
2021年第2期151-156,共6页
Spacecraft Engineering
