测距码数模混合畸变对北斗导航性能影响分析

刘瑞华; 赵庆田; 陈莹超; 孔月明

doi:10.15892/j.cnki.djzdxb.2018.03.041

弹箭与制导学报 >

2018 , Vol. 38 >Issue 3: 168 - 172

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2018.03.041

导弹与制导技术

测距码数模混合畸变对北斗导航性能影响分析

刘瑞华 ,
赵庆田 ,
陈莹超 ,
孔月明

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中国民航大学电子信息工程学院,天津 300300

刘瑞华(1965-),男,陕西蓝天人,教授,硕士生导师,博士,研究方向:惯性导航和组合导航。

收稿日期: 2017-09-04

网络出版日期: 2025-05-30

基金资助

民航安全能力建设项目“北斗机载设备技术标准规定与应用研究”(AADSA0007); 中央高校基本科研业务费中国民航大学专项“基于北斗的通用航空指挥监控系统”(20001006)

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Influence Analysis on BeiDou Navigation Performance for Ranging Code Mixed-signal Distortion

LIU Ruihua ,
ZHAO Qingtian ,
CHEN Yingchao ,
KONG Yueming

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School of Electronic and Information Engineering, Civil Aviation University of China, Tanjin 300300, China

Received date: 2017-09-04

Online published: 2025-05-30

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摘要

由于卫星导航信号出现异常会降低导航系统的导航性能,因此对国际民航组织(ICAO)给出的导航信号畸变模型进行研究。建立了北斗测距码数模混合畸变模型,对其相关域和频域进行了仿真分析,并对S曲线锁定点偏差深入分析来研究北斗导航性能。仿真分析结果表明:测距码的数模混合畸变均使其相关峰和功率谱畸变,降低了北斗的导航性能,并对增强系统的完好性产生影响。

关键词： TMC 畸变模型; 相关函数; 功率谱; 相关损耗; S曲线

本文引用格式

刘瑞华 , 赵庆田 , 陈莹超 , 孔月明 . 测距码数模混合畸变对北斗导航性能影响分析[J]. 弹箭与制导学报, 2018 , 38(3) : 168 -172 . DOI: 10.15892/j.cnki.djzdxb.2018.03.041

Abstract

The navigation performance of Global Navigation Satellite System was affected by distortional signal. According to the ICAO research on navigation signal anomaly, the mathematical model for BeiDou's digital and analog mixed distortion was established. Then, the correlation domain and frequency domain were analyzed. Finally, in accordance with S-curve locking point bias of TMC, the impact on measurement performance was deeply analyzed. The simulation results demonstrate that the correlation peak and power spectrum were deformation, the navigation performance of BeiDou was reduced, and the integrity for augmentation system was influenced.

Key words： threat model of TMC; correlation correlation function; power spectrum; correlation loss; S-curve

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参考文献

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