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地震子波估计是地震资料反褶积、波阻抗反演和地震波模拟等的必要环节.本文对优化最小平方法、复赛谱法、双谱法三种不同类型地震子波估计方法进行了对比研究.通过理论分析、理论模型数据实验以及对实测地震数据的应用,讨论了各方法的优缺点以及抗噪性和适应性等.针对应用于低信噪资料的问题等,给出了改进方法,提高了地震子波估计的效果.
Seismic wavelet estimation is an essential part of seismic data deconvolution, wave impedance inversion and seismic wave simulation, etc. In this paper, three different types of seismic wavelet estimation methods are compared, such as optimized least square method, double spectrum method and bispectral method Through the theoretical analysis, the theoretical model data experiment and the application to the measured seismic data, the advantages and disadvantages of each method as well as the anti-noise and adaptability are discussed.Aiming at the problem of low signal-noise data, the improved methods are given, Improve the effect of seismic wavelet estimation.