一种基于误差电压比例记忆的无塔校相方法  

A Towerless Phase Calibration Method Based on Record of Error Voltage Ratio

作　　者：尚建忠[1] 王青松[1] 王新宏[1] 

机构地区：[1]西安卫星测控中心,西安710043

出　　处：《电讯技术》2015年第9期1014-1018,共5页Telecommunication Engineering

摘　　要：针对大部分航天测控站下行链路校相功能还依赖标校塔的现状,分析了偏馈模式和有线模式下方位、俯仰误差电压比例值保持稳定的原理,提出了利用该稳定性实现测控站无塔校相的方法。实验证明,利用该方法得到的校相结果交叉耦合小于七分之一,定向灵敏度满足要求。该方法解决了设备组合变更或设备检修后需要重新标定的问题,可应用于双通道跟踪体制的统一测控系统,具有很强的实用性。According to the situation that most down-link phase calibration methods of space tracking sta-tion need calibration tower,this paper analyzes the theory of error voltage ratio keeping stability under offset-feed mode and radio frequency( RF) loop mode. A towerless phase calibration method based on this sta-bility is proposed. Experiments prove that in the phase calibration results through this method,the cross-coupling is less than 1/7 and the directional sensitivity meets the requirement. The method solves phase calibration problem after device combination changing or device maintenance and can be applied in the u-nified Tracking Telemetry and Command( TT&C) system adopting dual-channel tracking mode. This meth-od has very strong practicability.

关 键 词：统一测控系统 双通道跟踪体制 无塔校相 误差电压比例 

分 类 号：TN953[电子电信—信号与信息处理]