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JOURNALS // Dal'nevostochnyi Matematicheskii Zhurnal // Archive

Dal'nevost. Mat. Zh., 2021 Volume 21, Number 2, Pages 151–165 (Mi dvmg454)

This article is cited in 2 papers

Comparative analysis of the error of the single scattering approximation when solving one inverse problem in two-dimensional and three-dimensional cases

P. A. Vornovskikh, I. V. Prokhorov

Institute for Applied Mathematics, Far Eastern Branch, Russian Academy of Sciences, Vladivostok

Abstract: The inverse problem for the nonstationary radiative transfer equation is considered, which consists in finding the scattering coefficient for a given time-angular distribution of the solution to the equation at a certain point. To solve this problem, the single scattering approximation in the pulsed sounding mode is used. A comparative analysis of the error in solving the inverse problem in the single scattering approximation for two-dimensional and three-dimensional models describing the process of high-frequency acoustic sounding in a fluctuating ocean is carried out. It is shown that in the two-dimensional case the error of the approximate solution significantly exceeds the error in the three-dimensional model.

Key words: radiative transfer equation, pulsed ocean sounding, scattering coefficient, inverse problem, Monte Carlo methods.

UDC: 517.958

MSC: Primary 35Q20; Secondary 35Q60

Received: 12.10.2021

DOI: 10.47910/FEMJ202113



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