2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters
Fully-focusing of radar altimeters is a recent concept that has been introduced to allow further improvement of along-track resolution in high pulse repetition frequency (PRF) radar altimeters. The straight potentiality of this new perspective reflects into a more accurate estimation of geophysical...
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ftpolitecnicbari:oai:iris.poliba.it:11589/169883 2024-04-14T08:19:13+00:00 2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters Pietro Guccione Michele Scagliola Davide Giudici Guccione, Pietro Scagliola, Michele Giudici, Davide 2018 ELETTRONICO http://hdl.handle.net/11589/169883 https://doi.org/10.3390/rs10121943 https://www.mdpi.com/2072-4292/10/12/1943 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000455637600085 volume:10 issue:12 journal:REMOTE SENSING http://hdl.handle.net/11589/169883 doi:10.3390/rs10121943 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85058901564 https://www.mdpi.com/2072-4292/10/12/1943 info:eu-repo/semantics/openAccess info:eu-repo/semantics/article 2018 ftpolitecnicbari https://doi.org/10.3390/rs10121943 2024-03-21T17:14:57Z Fully-focusing of radar altimeters is a recent concept that has been introduced to allow further improvement of along-track resolution in high pulse repetition frequency (PRF) radar altimeters. The straight potentiality of this new perspective reflects into a more accurate estimation of geophysical parameters in some applications such as sea-ice observation. However, as documented in a recent paper, such capability leaves unsolved the problem of the high computational effort required. In this paper, we face the problem of adapting for altimeters the Omega-Kappa SAR focusing algorithm that is performed in the two-dimensional wavenumber domain, accounting for the difference existing between SAR and altimeter from geometry (looking and swath width) and instrument (echoes are deramped onboard on receiving) point of view. Simulations and an application using in-orbit data show the effectiveness of the proposed approach and the highly reduced computational effort. Article in Journal/Newspaper Sea ice Politecnico di Bari: Iris POLIBA (Catalogo dei prodotti della Ricerca) Remote Sensing 10 12 1943 |
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Open Polar |
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Politecnico di Bari: Iris POLIBA (Catalogo dei prodotti della Ricerca) |
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ftpolitecnicbari |
language |
English |
description |
Fully-focusing of radar altimeters is a recent concept that has been introduced to allow further improvement of along-track resolution in high pulse repetition frequency (PRF) radar altimeters. The straight potentiality of this new perspective reflects into a more accurate estimation of geophysical parameters in some applications such as sea-ice observation. However, as documented in a recent paper, such capability leaves unsolved the problem of the high computational effort required. In this paper, we face the problem of adapting for altimeters the Omega-Kappa SAR focusing algorithm that is performed in the two-dimensional wavenumber domain, accounting for the difference existing between SAR and altimeter from geometry (looking and swath width) and instrument (echoes are deramped onboard on receiving) point of view. Simulations and an application using in-orbit data show the effectiveness of the proposed approach and the highly reduced computational effort. |
author2 |
Guccione, Pietro Scagliola, Michele Giudici, Davide |
format |
Article in Journal/Newspaper |
author |
Pietro Guccione Michele Scagliola Davide Giudici |
spellingShingle |
Pietro Guccione Michele Scagliola Davide Giudici 2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters |
author_facet |
Pietro Guccione Michele Scagliola Davide Giudici |
author_sort |
Pietro Guccione |
title |
2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters |
title_short |
2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters |
title_full |
2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters |
title_fullStr |
2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters |
title_full_unstemmed |
2D Frequency Domain Fully Focused SAR processing for High PRF Radar Altimeters |
title_sort |
2d frequency domain fully focused sar processing for high prf radar altimeters |
publishDate |
2018 |
url |
http://hdl.handle.net/11589/169883 https://doi.org/10.3390/rs10121943 https://www.mdpi.com/2072-4292/10/12/1943 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000455637600085 volume:10 issue:12 journal:REMOTE SENSING http://hdl.handle.net/11589/169883 doi:10.3390/rs10121943 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85058901564 https://www.mdpi.com/2072-4292/10/12/1943 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/rs10121943 |
container_title |
Remote Sensing |
container_volume |
10 |
container_issue |
12 |
container_start_page |
1943 |
_version_ |
1796318864908222464 |