摘要
星基增强系统是一种广域增强系统,能够通过星座部分发送信号实现对全球卫星导航系统(GNSS)的增强效果。SDCM是由俄罗斯自主研发的星基增强系统,它可同时为GPS和GLONASS两个系统进行增强。为研究星基增强系统对于导航精度的提高,本文基于GPS和GLONASS系统,对系统的可见性和几何精度因子(GDOP)进行分析研究,并建立SDCM的星座模型,分析SDCM对不同GNSS系统的增强效果。结果表明SDCM对两个系统性能均有所增强。但对GLONASS的增强效果优于GPS。
The satellite-based augmentation system is a wide-area augmentation system that could augment Global Navigation Satellite System (GNSS) by transmitting signals through their constellation. SDCM is a satellite-based augmentation system developed independently by Russia, which can augment GPS and GLONASS. In order to study the improvement of navigation accuracy of satellite-based augmentation system, the number of visible satellite and GDOP of GPS and GLONASS were analyzed. And the constellation model of SDCM was established to analyze the enhancement effect of SDCM on different GNSS systems. The results show that both GNSS systems are augmented by SDCM, but the enhancement effect on GLONASS is better than GPS.
作者
王菁
田秋丽
代君
Wang Jing;Tian Qiuli;Dai Jun(School of Aeronautical Engineering,Zhengzhou University of Aeronautics,Zhengzhou Henan,450046;School of Economic,Zhengzhou University of Aeronautics,Zhengzhou Henan,450046)
出处
《电子测试》
2019年第15期57-59,共3页
Electronic Test
基金
河南省科技攻关计划(182102210444)
郑州航空工业管理学院校青年科研基金(2017153003)
