@inproceedings{9326c298a31a4e8eba52b29927199887,
title = "Full-wavefield estimation of angle-dependent reflectivity and migration velocity",
abstract = "The joint migration inversion (JMI) approach is a very robust and effective method for simultaneously estimating reflectivity (imaging) and the propagation velocity model in a closed-loop process. Being a full waveform method, it utilizes multiple scattering for estimating both types of parameters. Usually, angle-independent reflectivity and velocity are estimated in a ”flip-flop” manner based on gradient descent scheme. Two new features are discussed in this paper. First, simultaneous estimation of angle-dependent reflectivity in the JMI framework is studied, which allows to handle data with strong amplitude versus offset (AVO) variations. Second, a quasi-Newton algorithm was tested to estimate both angle-independent and angle-dependent reflectivity. The method is demonstrated on numerical data, generated by it{\textquoteright}s own forward modelling method, as well as data generated using finite difference modeling.",
keywords = "multiples, Seismic, Velocity, Algorithm",
author = "Mikhail Davydenko and D.J. Verschuur",
year = "2017",
month = sep,
day = "25",
doi = "10.1190/segam2017-17782606.1",
language = "English",
series = "SEG Technical Program Expanded Abstracts 2017",
publisher = "SEG",
pages = "5631--5635",
booktitle = "SEG Technical Program Expanded Abstracts 2017",
}