Integration of Single-Frequency GNSS and Strong-Motion Observations for Real-Time Earthquake Monitoring

被引：4
作者：
Tu, Rui [1 ,2 ,3 ]
Zhang, Rui [1 ,3 ]
Zhang, Pengfei [1 ,2 ]
Liu, Jinhai [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 Positioning & Timing Technol, Xian 710600, Shaanxi, Peoples R China
来源：
REMOTE SENSING | 2018年 / 10卷 / 06期
基金：
中国国家自然科学基金;
关键词：
real time; high-rate GNSS; strong-motion; integration system; earthquake monitoring; HIGH-RATE GPS; TIGHT INTEGRATION; COLLOCATED GPS; RECORDS; ACCELEROMETERS; DISPLACEMENTS; DEFORMATION; TAIWAN; TILTS;
D O I：
10.3390/rs10060886
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study, a real-time earthquake monitoring system based on the integration of single-frequency global navigation satellite system (GNSS) and strong motion (SM) observations was developed. This high-precision integrated system can provide full-frequency monitoring information, and it makes full use of SM data to quickly and accurately determine the vibration window for initial baseline shift correction. High-precision displacement data obtained from GNSS epoch-differenced velocity estimation are used to constrain the SM's low-frequency baseline shift. Hence, full-frequency monitoring information (displacement, velocity, and acceleration) can be provided in real-time. Three different datasets were used for validation and the results confirm that the proposed system can be used for practical earthquake monitoring.
引用
收藏
页数：17
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