北斗新体制BOC B1C导航信号模拟与生成  

BeiDou BOC B1C navigation signal simulation and generation

作　　者：马超 瞿智 李献斌 周超 Ma Chao;Qu Zhi;Li Xianbin;Zhou Chao(College of Intelligence Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学智能科学学院,长沙410073

出　　处：《电子测量与仪器学报》2024年第1期154-159,共6页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金(62001491);第九届中国科协青年人才托举工程(2023QNRC001)项目资助。

摘　　要：卫星导航信号模拟与测试作为全球卫星导航定位系统研制建设及导航接收机厂家测试验证的必要环节,其相关技术的进步集中反映了一个国家卫星导航系统建设和应用的水平。随着北斗新体制BOC信号的应用推广,给导航信号模拟与测试又提出了新的要求和挑战,基于伪距迭代和时延滤波技术,实现了对北斗新体制BOC B1C信号的基带生成,并利用开源软件接收机平台对自生成的基带信号进行了捕获、跟踪、解调、定位解算,定位结果显示,三维定位误差方差优于0.74 m,二维定位误差方差优于0.43 m,该模拟信号能够满足测试要求。Satellite navigation signal simulation and testing are the necessary links in the development and construction of global navigation satellite system and navigation receiver manufacturers.The progress of related technologies reflects the level of a country's satellite navigation system construction and application.The application of BOC signals in the BeiDou new modulation has put forward new requirements and challenges.Aiming to generate the baseband signal of BOC B1C BeiDou new modulation based on the pseudo range iteration and time-delay filtering technology,the open-source software defined receiver is used to capture,track,demodulate and locate the self-generated baseband signal.The positioning results show that the 3D positioning error variance is better than 0.74 m and the 2D positioning error variance is better than 0.43 m,which meet the simulation and test requirements.

关 键 词：BOC B1C 伪距迭代 时延滤波 开源软件接收机 

分 类 号：TN961[电子电信—信号与信息处理]