标题： 预叠去卷积的一些方面 显示英文标题

标题： Certain aspects of prestack deconvolution

摘要： 在之前的一篇论文中，我们已经证明由于入射角的变化，在轨迹上和共中心点道集中褶积程度有所不同，这需要随时间和偏移变化的褶积算子。 这一观点在$t$-$x$以及$\tau$-$p$域中进一步探讨。 我们提出更好的方法来在$\tau$-$p$域中褶积数据，并考虑到该域内褶积程度的变化。 我们推导了在$\tau$-$p$域中表面多次波周期的公式，例如水柱多次波和回声，这些波的周期仅取决于$p$的值，并提出了一种利用这些公式检查/修正所选速度的方法，前提是多次波与初至波很好地分离。 研究了双程表面多次波的周期性。 显示英文摘要

摘要： In a previous paper, we had shown that because of varying angles of incidence there is a varying degree of convolution down a trace and across a gather, necessitating deconvolution operators varying with time and offset. This idea is examined further in $t$-$x$ as well as $\tau$-$p$ domain. We suggest better ways to deconvolve data in $\tau$-$p$ domain, taking into account varying degree of convolution in this domain. We derive formulae for periods of surface multiples in $\tau$-$p$ domain, e.g., water column peg-legs and reverberations, which have a fixed period depending only on the value of $p$ -- and suggest a way to check/revise the picked velocity using the formulae, provided the multiples are well separated from the primary. Periodicity of two way surface multiples is also studied.