A Variational Adjoint Approach on Wide-Angle Parabolic Equation for Refractivity Inversion - ENAC - École nationale de l'aviation civile Accéder directement au contenu
Article Dans Une Revue IEEE Transactions on Antennas and Propagation Année : 2021

A Variational Adjoint Approach on Wide-Angle Parabolic Equation for Refractivity Inversion

Résumé

Radar systems performance under anomalous propagation conditions can be predicted if the atmosphere is properly known. This paper introduces a tomographic approach to estimate refractivity in the troposphere with an adjoint-based inversion method. A new adjoint model is developed for the two-dimensional wide-angle parabolic equation using variational adjoint approach, to invert refractivity from phaseless data measured with an array of radio receivers in open-sea environment. The obtained adjoint model is validated considering propagation through range-independent medium over flat perfectly-electric-conducting surface at horizontal polarization. The ill-posedness of the regarded inverse problem is shown with the optimization landscapes. The parametric study indicates the potential use of this method as a refractivity gradient retrieval system under certain circumstances.
Fichier principal
Vignette du fichier
karabas_2021_authors_version.pdf (1.75 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03156207 , version 1 (02-03-2021)

Identifiants

Citer

Uygar Karabaş, Youssef Diouane, Rémi Douvenot. A Variational Adjoint Approach on Wide-Angle Parabolic Equation for Refractivity Inversion. IEEE Transactions on Antennas and Propagation, 2021, 69 (8), pp.4861-4870. ⟨10.1109/TAP.2021.3060073⟩. ⟨hal-03156207⟩
112 Consultations
210 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More