摘要
针对GNSS兼容频率之间的组合定位,通过分析研究GPS/QZSS/Galileo三个系统兼容频率L1和L5的数据质量以及不同组合的伪距单点定位精度,发现三个系统的L1频率和L5频率的数据质量良好,其中QZSS数据质量较优,由于QZSS系统L1频率具有增强服务,L1频率组合的定位精度优于L5频率,同时发现Galileo与QZSS兼容频率之间兼容性较差,噪声较大,定位精度较低。
Considering the combined positioning of GNSS compatible frequencies, this paper analyzes the data quality of GPS/QZSS/Galileo compatible systems L1 and L5 and the accuracy of pseudo-range single-point positioning with different combinations. It is found that the data quality of L1 frequency and L5 frequency of these three systems is pretty good, among which the quality of QZSS data is the best. Due to the enhanced service of L1 frequency of QZSS system, the positioning accuracy of L1 frequency combination is better than L5 frequency. And poor compatibility between compatible frequencies,large noise, and low positioning accuracy are found in Galileo and QZSS.
作者
黎国军
周维杰
LI Guojun;ZHOU Weijie(Natural Resources Bureau of Xiushui County,Jiujiang 332000,China;Sichuan geology and mineral bureau regional geological survey team,Sichuan Province,Chengdu 610213,China)
出处
《江西测绘》
2020年第2期3-7,15,共6页
JIANGXI CEHUI
