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

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.
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https://hal.archives-ouvertes.fr/hal-02903513
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Submitted on : Tuesday, July 21, 2020 - 11:14:10 AM
Last modification on : Tuesday, July 28, 2020 - 4:54:02 PM

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Uygar Karabaş, Youssef Diouane, Rémi Douvenot. On the Use of Adjoint Methods for Refractivity Estimation in the Troposphere. 14th European Conference on Antennas and Propagation (EuCAP), Mar 2020, Copenhagen, Denmark. pp.1-5, ⟨10.23919/EuCAP48036.2020.9135287⟩. ⟨hal-02903513⟩

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