Research note: Derivations of gradients in angle-independent joint migration inversion

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    Abstract

    Although joint migration inversion has been proposed for several years, a thorough derivation and description of the involved gradients was not published. In this paper, we derive the gradient of both the angle-independent reflectivity and the velocity in a framework of acoustic angle-independent joint migration inversion. With some further approximations taken, the conclusions shown in previous publications can also be reached from our new derivation.

    Original languageEnglish
    Pages (from-to)572-579
    Number of pages8
    JournalGeophysical Prospecting
    Volume67
    Issue number3
    DOIs
    Publication statusPublished - 2019

    Keywords

    • Gradient
    • Joint Migration Inversion

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