Sound wave signal processing method

The invention discloses a sound wave signal processing method. The method comprises the steps of collecting a time domain sound wave signal through a sound wave transmitter and a sound wave receiver;performing bad track removal on the time domain sound wave signal, intercepting effective data length as an effective signal, and performing cross-correlation operation on the effective signal and a transmitting wavelet to obtain a seismic wave train; transforming the seismic wave train from a time domain to a space domain by utilizing Fourier forward transformation, and filtering the transformedseismic wave train according to the difference of geological information, effective waves and interference waves on the frequency spectrum; transforming the filtered seismic wave sequence from a spatial domain to a time domain by using inverse Fourier transform, and compensating the amplitude of the seismic wave sequence; calculating travel time according to a reflected wave principle, and extracting a longitudinal wave sp