Abstract
The seismogeodetic technology can detect earthquake caused displacements in real time by combining accelerometers with GNSS instruments. We introduce an in-situ real-time seismogeodetic instrument: Strong Motion Accelerographs with GNSS 2000 (SMAG2000). It adopts a near-real-time smoothing algorithm and advanced loosely- and tightly-coupled algorithms. This study discusses the characteristics of the aforementioned algorithms and evaluates their performance by kinematic experiments. The minimum RMS of the differences between the solutions and the reference motions reaches 0.2 cm and the cross-correlation coefficient is up to 0.99. The smoothing algorithm enhances the accuracy by over 30% relative to the unsmoothed position estimates. A further comparison with other real-time seismogeodetic instruments: Trimble SG160-09, and SIO Geodetic Module and MEMS Accelerometer Package (SIO-GAP), was also conducted. Although the instruments all can monitor vibrations successfully, SMAG2000 has the advantage of realizing different advanced algorithms in situ in terms of possible modes of operation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
