The tests by the seismic array observation data after triggering with the short-term average/long-term average (STA/LTA) technique show that the phase picking error is less than 0.3 s for local events by using the single channel AIC algorithm.

• 检测结果表明；在长短时平均比值方法(STA/LTA)检测地震事件的基础上；利用单台AIC方法；近震初至震相检测精度小于0.；3S;