Cooperating the BDS, GPS, GLONASS and strong-motion observations for real-time deformation monitoring

被引:30
|
作者
Tu, Rui [1 ,2 ,3 ]
Liu, Jinhai [1 ,2 ]
Lu, Cuixian [4 ]
Zhang, Rui [1 ,3 ]
Zhang, Pengfei [1 ,2 ]
Lu, Xiaochun [1 ,2 ,3 ]
机构
[1] Chinese Acad Sci, Natl Time Serv Ctr, Shu Yuan Rd, Xian 710600, Shaanxi, Peoples R China
[2] Univ Chinese Acad Sci, Yu Quan Rd, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Key Lab Precis Nav & Timing Technol, Shu Yuan Rd, Xian 710600, Shaanxi, Peoples R China
[4] German Res Ctr Geosci, D-14473 Potsdam, Germany
基金
中国国家自然科学基金;
关键词
Satellite geodesy; Space geodetic surveys; Transient deformation; PHASE AMBIGUITY RESOLUTION; POINT POSITIONING PPP; MULTI-GNSS; EARTHQUAKE; DISPLACEMENTS; ACCELEROMETERS; RECORDS; INTEGRATION; SEISMOLOGY; ACCURACY;
D O I
10.1093/gji/ggx099
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
An approach of cooperating the BDS, GPS, GLONASS and strong-motion (SM) records for real-time deformation monitoringwas presented, whichwas validated by the experimental data. In this approach, the Global Navigation Satellite System (GNSS) data were processed with the real-time kinematic positioning technology to retrieve the GNSS displacement, and the SM data were calibrated to acquire the raw acceleration; a Kalman filter was then applied to combine the GNSS displacement and the SM acceleration to obtain the integrated displacement, velocity and acceleration. The validation results show that the advantages of each sensor are completely complementary. For the SM, the baseline shifts are estimated and corrected, and the high precision velocity and displacement are recovered. While the noise of GNSS can be reduced by using the SM-derived high-resolution acceleration, thus the high-precision and broad-band deformation information can be obtained in real time. The proposed method indicates a promising potential and capability in deformation monitoring of the high-building, dam, bridge and landslide.
引用
收藏
页码:1408 / 1417
页数:10
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