窄带卫星通信系统地面通用多模网桥设计与实现  

Design and implementation of terrestrial general-purpose multi-mode bridge for narrowband satellite communication systems

作　　者：左云鹏 边东明 顾陆欢 苟亮 万扬洋 ZUO Yunpeng;BIAN Dongming;GU Luhuan;GOU Liang;WAN Yangyang(Nanjing Smart Constellation Information Technology Co.,Ltd.,Nanjing 210007,China;PLA Army Engineering University,Nanjing 210001,China)

机构地区：[1]南京融星智联信息技术有限公司,江苏南京210007 [2]中国人民解放军陆军工程大学,江苏南京210001

出　　处：《宁波大学学报（理工版）》2023年第5期76-82,共7页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家自然科学基金(61971440)。

摘　　要：现有卫星通信地面网桥在进行IP数据星地传输时多采用私有协议和定制化结构,增加了前期系统联试和后期设备扩展的工作量.同时,窄带相较于宽带通信,占用频谱资源更少,不需要高信噪比的通信环境,可在复杂电磁环境等特殊场景应用.因此本文针对现有不足,并根据应用场景需求,为具有透明转发功能的卫星设计地面通用网桥设备,并对其协议、软件设计进行详细描述.最后通过两设备基带中频互通实验模拟设备与透明转发卫星组网,对其功能和性能进行测试,测试结果证明了方案的有效性.Existing terrestrial bridges in satellite communication systems adopt in most cases private protocols and customized structure for IP data transmitting from satellite to ground,which requires the extra efforts on pre-system joint testing and later equipment expansion.Meanwhile,compared with broadband communications,narrowband occupies less spectrum resources,which skips a high signal-to-noise communication environment,and can thus be applied in complex electromagnetic environments and other special scenarios.To tackle the existing shortcomings,a terrestrial universal bridge device is designed in this paper for enabling satellite as transparent forwarding with the protocol and software design described in detail.Finally,the function and performance are tested by interoperable communication experiment through the baseband of two devices simulating the equipment and transparent forwarding satellite networking.The test results prove the effectiveness of the presented scheme.

关 键 词：卫星通信系统地面网桥 卫星通信系统 窄带通信 LIBPCAP Linux多线程 

分 类 号：TN927.21[电子电信—通信与信息系统]