基于USRP的测控站实时频谱监视系统设计与实现

Design and implementation of real⁃time spectrum monitoring system in TT&C station based on USRP

USRP是一种软件无线电硬件外设,可实现将电磁波信号转换为比特流处理,再转换为电磁信号发射。针对卫星地面测控系统中对多路测控信号的频谱进行实时监视的需求,该文在对US⁃RP及GNU Radio软件开发平台研究的基础上,搭建了基于网络设备的分布式、通道可扩展硬件平台,并设计了一种多通道兼容、分辨率高、数据可回溯的实时频谱监视系统,可满足地面测控站对不同航天器上行、下行多路信号的实时监视、存储及回放的需求。

USRP is a software radio hardware peripheral that can convert electromagnetic wave signals into bit stream to process.Aiming at the need for real⁃time monitoring of the spectrum of multi⁃signals in the TT&C(Tracking Telemeter and Command)station,this paper designs a scalable multi⁃channel real⁃time spectrum monitoring system based on USRP and GNU Radio.It is a multi⁃channel real⁃time spectrum monitoring system which has the characteristics of distributed and scalable.It can adapt to the needs for real⁃time monitoring,storage and playback requirements of the TT&C station for the uplink and downlink multi⁃channel signals of different spacecraft.