Using high-precision travel time extraction to detect time deviation of seismic instruments
Han Zhang,
Fang Ye,
Chun-Wei Jin
et al.
Abstract:The method of seismic ambient noise cross-correlations (NCFs) has been demonstrated to be applicable for time offset measurement, especially in evaluating instrument clocks. Continuous recording of seismic ambient noise data makes it possible to analyze the performance of seismic instruments online. However, long-term cross-correlation and stacking calculations are required to obtain accurate travel time from ambient noise, which greatly reduces the time resolution of instrument performance detection. Therefor… Show more
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