Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-Frequency

The paper proposes an analytical study regarding airborne radar imaging performances and accounts for a down-looking radar system moving along parallel lines far, in terms of probing wavelength, from the investigated domain and collecting multi-frequency and multi-monostatic data. The imaging proble...

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Main Authors: Ilaria Catapano, Carlo Noviello, Francesco Soldovieri
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/13/23/4897
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author Ilaria Catapano
Carlo Noviello
Francesco Soldovieri
author_facet Ilaria Catapano
Carlo Noviello
Francesco Soldovieri
author_sort Ilaria Catapano
collection DOAJ
description The paper proposes an analytical study regarding airborne radar imaging performances and accounts for a down-looking radar system moving along parallel lines far, in terms of probing wavelength, from the investigated domain and collecting multi-frequency and multi-monostatic data. The imaging problem is formulated in a constant depth plane by exploiting the Born approximation. Hence, a linear inverse scattering problem is faced by considering both the Adjoint and the Truncated Singular Value Decomposition reconstruction schemes. Analytical and simulated results are provided to state how the achievable performances depend on the measurement configuration. These results are of practical usefulness because, in operative conditions, it is unfeasible to plan a flight grid made up by a high number of closely (in terms of probing wavelength) spaced lines. Hence, the understanding of how the availability of under-sampled data affects the radar imaging allows for a trade-off between operative data collection constrains and reliable reconstructions of the scenario under test.
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spelling doaj.art-83b1d1d6a940402d91951aabef9f75de2023-11-23T02:58:03ZengMDPI AGRemote Sensing2072-42922021-12-011323489710.3390/rs13234897Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-FrequencyIlaria Catapano0Carlo Noviello1Francesco Soldovieri2Institute for Electromagnetic Sensing of the Environment (IREA), National Research Council (CNR), 80124 Napoli, ItalyInstitute for Electromagnetic Sensing of the Environment (IREA), National Research Council (CNR), 80124 Napoli, ItalyInstitute for Electromagnetic Sensing of the Environment (IREA), National Research Council (CNR), 80124 Napoli, ItalyThe paper proposes an analytical study regarding airborne radar imaging performances and accounts for a down-looking radar system moving along parallel lines far, in terms of probing wavelength, from the investigated domain and collecting multi-frequency and multi-monostatic data. The imaging problem is formulated in a constant depth plane by exploiting the Born approximation. Hence, a linear inverse scattering problem is faced by considering both the Adjoint and the Truncated Singular Value Decomposition reconstruction schemes. Analytical and simulated results are provided to state how the achievable performances depend on the measurement configuration. These results are of practical usefulness because, in operative conditions, it is unfeasible to plan a flight grid made up by a high number of closely (in terms of probing wavelength) spaced lines. Hence, the understanding of how the availability of under-sampled data affects the radar imaging allows for a trade-off between operative data collection constrains and reliable reconstructions of the scenario under test.https://www.mdpi.com/2072-4292/13/23/4897radar imagingunmanned aerial vehicleairborneinverse scatteringlinear scattering modelsradar signal processing
spellingShingle Ilaria Catapano
Carlo Noviello
Francesco Soldovieri
Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-Frequency
Remote Sensing
radar imaging
unmanned aerial vehicle
airborne
inverse scattering
linear scattering models
radar signal processing
title Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-Frequency
title_full Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-Frequency
title_fullStr Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-Frequency
title_full_unstemmed Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-Frequency
title_short Down-Looking Airborne Radar Imaging Performance: The Multi-Line and Multi-Frequency
title_sort down looking airborne radar imaging performance the multi line and multi frequency
topic radar imaging
unmanned aerial vehicle
airborne
inverse scattering
linear scattering models
radar signal processing
url https://www.mdpi.com/2072-4292/13/23/4897
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AT carlonoviello downlookingairborneradarimagingperformancethemultilineandmultifrequency
AT francescosoldovieri downlookingairborneradarimagingperformancethemultilineandmultifrequency