标题：Deformation monitoring and precision analysis based on BDS/GPS dual system combination
作者：Ren, Lei ;Xu, Tianhe ;Ai, Qingsong ;Yang, Yuguo
作者机构：[Ren, Lei ;Ai, Qingsong ;Yang, Yuguo ] School of Geology Engineering and Surveying, Chang an University, No. 126, Yanta Road, Xi an; Shanxi, China;[Xu 更多
会议名称：8th China Satellite Navigation Conference, CSNC 2017
会议日期：May 23, 2017 - May 25, 2017
来源：Lecture Notes in Electrical Engineering
摘要：To test the accuracy and reliability of BDS/GPS dual system combination in geological hazard monitoring, the key technologies of BDS and GPS dual mode fusion relative positioning are analyzed. Through the processing and analysis of the measured deformation monitoring network data, the results show that. The precision of dual frequency BDS/GPS combined deformation monitoring is better than those of GPS and BDS single system. The positioning accuracy in horizontal direction is better than 2 mm, vertical direction is better than 3 mm. A new robust moving average method is proposed for smooth filtering of dual system combined deformation monitoring sequences. This method has good ability to resist outliers, and can make the deformation sequences smoothly. On the basis of combined positioning, the daily drift velocity of each monitoring station is estimated. The accuracy and reliability of BDS/GPS dual system combined positioning are further confirmed and analyzed, which shows a promising application of BDS in deformation monitoring field.
© Springer Nature Singapore Pte Ltd. 2017.