在影响地震波振幅的诸多因素中，除反射系数外，最主要的是波前扩散和吸收的影响。
Among various factors affecting the amplitude of seismic record, wavefront divergence and absorption are the key ones, except reflected coefficients.
经过理论试算和实际处理表明，本方法能较好地消除球面发散和大地吸收对振幅的影响。
Theoretical and practical results indicate that the method can compensate quite desirably the amplitude attenuation due to spherical divergence and earth absorption.
从视等厚层状吸收介质模型入手，理论计算了地震反射波的振幅谱。
Starting from the layer absorbing media model, the amplitude spectrum is calculated theoretically.
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