一种卫星地面站上行数传信号闭环检测系统的设计与实现  

A Closed-Loop Comparison System of Satellite Uplink Signal

作　　者：卢欧欣 Lu Ou-xin(Southwest China Institute of Electronic Technology,Sichuan Chengdu 610036)

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《电子质量》2022年第6期46-51,共6页Electronics Quality

摘　　要：针对日益增多的卫星上行数据传输需求[1-3],该文提出了一种卫星地面站上行数传信号闭环检测系统的设计与实现方法。首先对该系统的工作原理和流程进行了介绍,并对解调性能和数据处理时间进行了详细定量的分析,可为同类型系统或设备的性能评估提供参考。给出了系统的硬件平台和功能算法设计,并对接收机相位模糊处理以及无固定帧结构场景下的数据比对等关键问题提供了解决方法。最后给出了硬件资源占用情况和性能测试结果。该方法适用于多种调制体制和编码方式下的卫星地面站上行数传信号闭环检测,具有实时性强、资源占用少且稳定可靠的特点。A closed-loop comparison system of satellite uplink signal is proposed to meet the requirements of uplink data transmission.The operating principle and workflow of the system is introduced at the first,then the demodulation performance,along with the signal processing delay are quantitatively analyzed in detail,which gives a reference for the performance evolution of the analogous systems or equipment.The hardware platform,function unit and algorithm of the system are introduced in the following,especially the key techniques of de modulation phase ambiguity resolving.At the end of the article,the hardware utilization and the performance of system are given.The system is applicable to the comparison of satellite uplink signal with multiple modulation and channel coding type,and it shows features of resource-saving,real-time processing and reliability.

关 键 词：上行数传 闭环检测 卫星地面站 多调制体制与编码方式 

分 类 号：TN927.2[电子电信—通信与信息系统]