不同测量型接收机观测数据质量对比分析

QUALITY ASSESSMENT OF OBSERVATIONS FOR DIFFERENT GNSS SURVEY-GRADE RECEIVERS

针对不同全球定位系统(GNSS)测量型接收机观测数据质量差异问题,基于国内外5款GNSS测量型接收机的实测数据,从数据完整率、载噪比、多路径误差和周跳比指标对各接收机观测数据质量进行评估。实验结果表明:综合数据完整率、载噪比和周跳比看,JAVAD TRE_3接收机数据质量优于TRIMBLE NETR9、SEPT POLARX5和LEICA GR30三款接收机。此外,国产司南T300接收机在BDS系统卫星信号处理及北斗信号多路径误差处理方面较其他四款接收机有一定优势。

To evaluate the observation quality of different GNSS survey-grade receivers,this paper evaluated the observation quality of five well-known domestic and foreign receivers in terms of observation integrity rate,carrier-to-noise ratio,multi-path error and cycle slip ratio.The results show that the observation quality of JAVAD TRE_3 receiver is better than TRIMBLE NETR9,SEPT,POLARX5 and LEICA GR30 receivers in terms of observation integrity rate,carrier-to-noise ratio and number of cycle slip.In addition,the domestic Sino T300 receiver outperforms the other 4 GNSS receivers in terms of BDS satellite signal processing and multi-path error processing of BeiDou signals.