地表一致性分解及其分量分析

依据地表一致性模型及其假设条件，本文在进行地表一致性分解时，采用共轭梯度迭代方法在时间域求解。通过对求解的地表一致性分量进行分析，认为进行地表一致性谱分解时应采用四分量进行求解；而进行地表一致性校正处理时，采用炮点分量、接收点分量及共炮检距分量计算反褶积因子来消除地表条件对地震记录的影响较为合理。实际资料处理结果表明，采用本文方法可以有效地消除因地表条件等因素引起的反射振幅畸变。本文方法具有处理速度快，抗噪能力强且处理效果显著的特点。

Surface-consistent decomposition and its components analysis

According to surface-consistent model and its realization condition, the paper uses conjugate-gradient algorithm to do spectral decomposition processing in time-domain and analyze it by resolved surface-consistent components, which considered that it is more reasonable to use shot, receiver and offset components for computation of deconvolution factor to eliminate influence of surface condition on seismic records. After data processing by selecting seismic records in the areas where typical complicated surface condition is, the results show that adopting the method proposed by the paper can effectively correct influence of complicated surface condition on seismic reflection amplitude. The method has advantages of fast processing speed, strong anti-noise ability and excellent applied results in seismic data processing in the areas of more complicated surface condition and poor signal-to-noise ratio.