SAR focusing of mobile ApRES surveys
The Autonomous Phase-Sensitive Radio Echo Sounder (ApRES) is a relatively inexpensive ice-penetrating Frequency-Modulated Continuous-Wave (FMCW) radar that is widely utilized in the glaciological community to obtain estimates of ice-sheet basal melt, vertical strain, and compaction rates [1]. Howeve...
Published in: | IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium |
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Online Access: | https://research-portal.st-andrews.ac.uk/en/publications/e5b89403-06aa-4d05-bbd5-d78d2406ace0 https://doi.org/10.1109/IGARSS46834.2022.9883784 https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_st-andrews_wos_starter&SrcAuth=WosAPI&KeyUT=WOS:000920916601228&DestLinkType=FullRecord&DestApp=WOS |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/e5b89403-06aa-4d05-bbd5-d78d2406ace0 2024-10-13T14:08:06+00:00 SAR focusing of mobile ApRES surveys Kapai, S Schroeder, D Broome, A Young, TJ Stewart, C 2022 https://research-portal.st-andrews.ac.uk/en/publications/e5b89403-06aa-4d05-bbd5-d78d2406ace0 https://doi.org/10.1109/IGARSS46834.2022.9883784 https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_st-andrews_wos_starter&SrcAuth=WosAPI&KeyUT=WOS:000920916601228&DestLinkType=FullRecord&DestApp=WOS eng eng https://research-portal.st-andrews.ac.uk/en/publications/e5b89403-06aa-4d05-bbd5-d78d2406ace0 urn:ISBN:9781665427920 info:eu-repo/semantics/restrictedAccess Kapai , S , Schroeder , D , Broome , A , Young , TJ & Stewart , C 2022 , SAR focusing of mobile ApRES surveys . in 2022 IEEE International Geoscience and Remote Sensing Symposium . pp. 1688-1691 . https://doi.org/10.1109/IGARSS46834.2022.9883784 ApRES FMCW Grating Lobes SAR contributionToPeriodical 2022 ftunstandrewcris https://doi.org/10.1109/IGARSS46834.2022.9883784 2024-09-18T23:42:20Z The Autonomous Phase-Sensitive Radio Echo Sounder (ApRES) is a relatively inexpensive ice-penetrating Frequency-Modulated Continuous-Wave (FMCW) radar that is widely utilized in the glaciological community to obtain estimates of ice-sheet basal melt, vertical strain, and compaction rates [1]. However, these instruments are designed for stationary deployments, which prevents glacier- and catchment-scale surveys [2]. To expand the range of available applications, we assess the feasibility of mobile ApRES surveys. Our in-vestigation reveals that utilizing the ApRES in this manner introduces artifacts into the raw data. This paper character-izes the two types of artifacts (Doppler Blurring and grating lobes), investigates the conditions for when they occur, and attempts to correct them by modifying synthetic aperture radar (SAR) focusing algorithms for FMCW radars. We ul-timately identify the main obstacle in focusing radargrams from mobile ApRES surveys to be grating lobes; future work that reduces the presence of this artifact could enable more widespread use of mobile ApRES surveys. Article in Journal/Newspaper Ice Sheet University of St Andrews: Research Portal IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium 1688 1691 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
ApRES FMCW Grating Lobes SAR |
spellingShingle |
ApRES FMCW Grating Lobes SAR Kapai, S Schroeder, D Broome, A Young, TJ Stewart, C SAR focusing of mobile ApRES surveys |
topic_facet |
ApRES FMCW Grating Lobes SAR |
description |
The Autonomous Phase-Sensitive Radio Echo Sounder (ApRES) is a relatively inexpensive ice-penetrating Frequency-Modulated Continuous-Wave (FMCW) radar that is widely utilized in the glaciological community to obtain estimates of ice-sheet basal melt, vertical strain, and compaction rates [1]. However, these instruments are designed for stationary deployments, which prevents glacier- and catchment-scale surveys [2]. To expand the range of available applications, we assess the feasibility of mobile ApRES surveys. Our in-vestigation reveals that utilizing the ApRES in this manner introduces artifacts into the raw data. This paper character-izes the two types of artifacts (Doppler Blurring and grating lobes), investigates the conditions for when they occur, and attempts to correct them by modifying synthetic aperture radar (SAR) focusing algorithms for FMCW radars. We ul-timately identify the main obstacle in focusing radargrams from mobile ApRES surveys to be grating lobes; future work that reduces the presence of this artifact could enable more widespread use of mobile ApRES surveys. |
format |
Article in Journal/Newspaper |
author |
Kapai, S Schroeder, D Broome, A Young, TJ Stewart, C |
author_facet |
Kapai, S Schroeder, D Broome, A Young, TJ Stewart, C |
author_sort |
Kapai, S |
title |
SAR focusing of mobile ApRES surveys |
title_short |
SAR focusing of mobile ApRES surveys |
title_full |
SAR focusing of mobile ApRES surveys |
title_fullStr |
SAR focusing of mobile ApRES surveys |
title_full_unstemmed |
SAR focusing of mobile ApRES surveys |
title_sort |
sar focusing of mobile apres surveys |
publishDate |
2022 |
url |
https://research-portal.st-andrews.ac.uk/en/publications/e5b89403-06aa-4d05-bbd5-d78d2406ace0 https://doi.org/10.1109/IGARSS46834.2022.9883784 https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_st-andrews_wos_starter&SrcAuth=WosAPI&KeyUT=WOS:000920916601228&DestLinkType=FullRecord&DestApp=WOS |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Kapai , S , Schroeder , D , Broome , A , Young , TJ & Stewart , C 2022 , SAR focusing of mobile ApRES surveys . in 2022 IEEE International Geoscience and Remote Sensing Symposium . pp. 1688-1691 . https://doi.org/10.1109/IGARSS46834.2022.9883784 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/publications/e5b89403-06aa-4d05-bbd5-d78d2406ace0 urn:ISBN:9781665427920 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1109/IGARSS46834.2022.9883784 |
container_title |
IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium |
container_start_page |
1688 |
op_container_end_page |
1691 |
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1812814712277041152 |