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On the Use of Adjoint Methods for Refractivity Estimation in the Troposphere

Karabaş, Uygar and Diouane, Youssef and Douvenot, Remi On the Use of Adjoint Methods for Refractivity Estimation in the Troposphere. (2020) In: 14th European Conference on Antennas and Propagation (EuCAP), 15 March 2020 - 20 March 2020 (Copenhagen, Denmark).

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Official URL: https://doi.org/10.23919/EuCAP48036.2020.9135287

Abstract

This paper presents a preliminary study of a new inversion strategy combining the method of adjoint applied to the wide-angle parabolic equation and the method of split-step wavelet for tropospheric refractivity estimation. Our main motivation is to use a gradient based optimization method to infer atmosphere from radio-frequency data, in an effort towards a real-time accurate refractivity-from-clutter system. The proposed adjoint formulation is validated with the method of finite differences. The validation setup is developed for inversion using a tomographic approach.

Item Type:Conference or Workshop Item (Poster)
HAL Id:hal-02903513
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Ecole Nationale de l'Aviation Civile - ENAC (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
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Deposited On:21 Jul 2020 09:14

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