Wang J M,Yin H T. 2018. Seismic phase recognition of coseismic data from high-rate GNSS based on S transform. Acta Seismologica Sinica40(6):753−759. doi:10.11939/jass.20180029. DOI: 10.11939/jass.20180029
Citation: Wang J M,Yin H T. 2018. Seismic phase recognition of coseismic data from high-rate GNSS based on S transform. Acta Seismologica Sinica40(6):753−759. doi:10.11939/jass.20180029. DOI: 10.11939/jass.20180029

Seismic phase recognition of coseismic data from high-rate GNSS based on S transform

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  • Received Date: March 03, 2018
  • Revised Date: May 09, 2018
  • Available Online: November 04, 2018
  • Published Date: October 31, 2018
  • The high-rate GNSS data recorded by some stations during the 2008 Wenchuan MS8.0 earthquake was used in this paper to identify the arrive time of P-wave and S-wave in 1 Hzhigh-rate GNSS. Coseismic signals are decomposed in two-dimensional time-frequency domain using generalized S transform. The adjustment factors λa=1.05, p=1.05 is used to identify the arrival times of P-wave and S-wave, which could get a better result. The S transform is effec-tive and feasible in the high-rate GNSS seismic phase recognition.
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