Identification of the special seismic phases in the data recorded by Shanghai seismic array with FK scan technology

There are a lot of methods to identify seismic phases, but the identification of weak phases is not solved ultimately. Taking the advantage that seismic array can enhance seismic signal and reduce noise, combining site response, we realized seismic event scanning with FK technology. According to the horizontal apparent slowness, azimuth and their coherence, we can identify seismic phase, especially special phase. The identification is useful in the research of the earth's inner structure.