摘要
为了进一步提高网联汽车的全球卫星导航系统(GNSS)导航定位信号稳定性,设计了一种基于解重扩算法的网联车载GNSS导航定位信号误差分析方法,实现在卫星信号干扰方向产生零陷并在来向产生波束增益。研究结果表明:接收机载频与重扩频后的载频相差较大,DR对载波相位影响使载波相位偏差逐渐增大,利用频率估算的方式来精确获取频率估算结果,有效解决卫星和再扩展载波之间存在的巨大差异。该研究对保证卫星信号精确传输具有一定的理论指导意义。
In order to further improve the stability of global navigation satellite system(GNSS)navigation and positioning signals for connected vehicles,a method of analyzing the error of GNSS navigation and positioning signals for connected vehicles based on de-expansion algorithm is designed to realize the generation of zero-trapping in the direction of the interference of satellite signals and the generation of beam gain in the incoming direction.The research results show that:the difference between the receiver carrier frequency and the carrier frequency after reexpansion is large,the influence of DR on the carrier phase makes the carrier phase deviation increase gradually,and the frequency estimation is utilized to accurately obtain the frequency estimation results,which effectively solves the huge difference between the satellite and the reexpanded carrier.This research has certain theoretical guiding significance to ensure the accurate transmission of satellite signals.
作者
尚霞
姚会君
杨鲁芸
Shang Xia;Yao Huijun;Yang Luyun(School of Automotive Engineering,Huanghe Jiaotong University,Wuzhi Henan 454950,China)
出处
《现代工业经济和信息化》
2024年第10期91-92,95,共3页
Modern Industrial Economy and Informationization
基金
2023年黄河交通学院校级一流课程——《智能汽车概论》(HHJTXY-2023ylkc29)
2022年黄河交通学院校级教学资源库——《智能汽车概论》(HHJTXY-2022kczyk052)。
关键词
网联汽车
全球卫星导航系统
解重扩算法
导航定位
信号误差
internet-connected vehicle
global satellite navigation system
de-re-expansion algorithm
navigation and localization
signal error
