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利用小波变换研究地震勘探信号小波变换的过零点特性，本文提出了用小波变换的过零点特性和地震勘探信号相邻道的横向相关性提高信号分辨率和信噪比的新方法．该方法包括两个主要步骤：①利用相邻地震道信号具有很好相关性，而噪音相关性差的特点以及小波变换的过零点特性得到有效反射波同相轴随空间坐标的变化信息．②利用奇异值分解和最小二乘（SVD-TLS）方法沿同相轴对振幅进行多项式拟合去噪并增加信号高频提高信号分辨率．
Using wavelet transform to study the zero-crossing characteristics of wavelet transform of seismic exploration signal, a new method of improving signal resolution and signal-to-noise ratio by using wavelet transform zero-crossing characteristic and transverse correlation of adjacent channels of seismic exploration signal is proposed. The method consists of two main steps: (1) The information of the effective reflection wave events with space coordinates is obtained by using the characteristics of adjacent seismic traces with good correlation and poor noise correlation as well as the zero-crossing characteristics of wavelet transform. (2) Singular value decomposition and least squares (SVD-TLS) method is used to perform polynomial fitting of amplitudes along the in-phase axis to denoise and increase signal high frequency to improve signal resolution.