在地震勘探中,P波和S波入射到一固体液体分界面处时,在该分界面处的水平检波器和垂直检波器将接受到相应的响应.垂直检波器的响应与在自由界面处的垂直检波器的响应大概相同,而水平检波器对P波的响应相对于对S波的响应来说要强.本文发展了一种在τ—P域内,利用检波器响应特性分离P波和S波波场的新方法.并用合成的弹性波地震数据验证了本方法的可行性和实用性 In seismic exploration, when the P wave and the S wave are incident on a solid liquid interface, the horizontal and vertical detectors at the interface will receive the corresponding response.The response of the vertical detector is the same as the response of the vertical detector at the free interface The response of the horizontal detector to the P wave is stronger than that of the S wave.This paper develops a new method to separate the P wave from the S wave in the τ-P domain by using the response characteristics of the detector Wave field and the synthetic elastic wave seismic data to verify the feasibility and practicability of this method