Method of Correcting Wavelet Differences of Data Received by Velocity-Type Geophone and Piezoelectric Geophone

Velocity-type geophones and piezoelectric geoph-ones are frequently used to receive seismic signal in seismic exploration in the beach and neritic zone. But seismic data collected by the two kinds of geophones is obviously different in frequency and phase. On the basis of analyzing characteristics of data collected by velocity-type geophone and piezoelectric geophone, this paper puts forward a method for piezoelectric geophone data, first constant phase correction, and then wavelet correction. This method can eliminate the wavelet frequency and phase difference, and realize in-phase superposition of the seismic data during the process of the seismic data in the complex surface. Also it can raise the signal/noise ratio and distinguish ability of the seismic data, and realize the relative amplitude-preserving to a certain extent.