[1]LI Zuning,LIN Shu,CHEN Chaoxian,et al.Capacity Evaluation of Seismic Displacement Signals Recorded by Ultra-high Frequency GPS:An Artificial Blasting Source Experiment[J].Journal of Seismological Research,2016,39(04):587-597.
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Capacity Evaluation of Seismic Displacement Signals Recorded by Ultra-high Frequency GPS:An Artificial Blasting Source Experiment
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 04
Page number:
587-597
Column:
Public date:
2016-10-30
- Title:
- Capacity Evaluation of Seismic Displacement Signals Recorded by Ultra-high Frequency GPS:An Artificial Blasting Source Experiment
- CLC:
- P315.3
- DOI:
- -
- Abstract:
- An artificial blasting experiment with different equivalent has carried out by Fujian Earthquake Administration in Fujian Province in Jun.,2014.The ultra-high frequency GPS observation data with 50 Hz are employed to near field observations.With quick forecasting ephemeris and post precise ephemeris,the observation data have been treated by quasi real-time and post precision processing respectively.It is resulted that in the differential mode,the horizontal noise of the high frequency GPS is about 5 mm,and the vertical noise is about 10 mm.The solutions of single epoch-differential high rate GPS observation are basically the same by the algorithm of fast forecasting ephemeris and post precise ephemeris respectively.So the result of high frequency GPS real-time decoding is strongly reliability by using quick forecasting ephemeris algorithm.Meanwhile,we find that there exits some difference in waveforms between high frequency GPS and the signal of strong motion seismograph in the same site.After comparing the frequency component,we find that this difference is mainly from the different frequency signal recorded by high frequency GPS and strong motion seismograph respectively.It is shown that the results of high frequency GPS data real-time processing have the ability to monitor the ground shaking,so it could be applied to the seismic intensity rapid reporting and earthquake early warning,it' also could be the good supplement to studying the ground motion and earthquake.
- References:
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Last Update:
2016-10-30