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