Improved cross-range resolution in TOPSAR imaging using Sentinel-1A in bistatic operation

Virginie Kubica; Xavier Neyt; Hugh Griffiths

doi:10.1109/RADAR.2015.7130981

Improved cross-range resolution in TOPSAR imaging using Sentinel-1A in bistatic operation

Virginie Kubica, Xavier Neyt, Hugh Griffiths

University College London

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Abstract

Wide-swath SAR imaging modes such as ScanSAR or TOPSAR offer synoptic observations of large-scale phenomena with a high revisit frequency at the expense of a degraded cross-range resolution. In the bistatic configuration using a SAR satellite as illuminator of opportunity and a ground-based stationary receiver close to the imaged area, this poor cross-range resolution can be improved in some favourable geometries by exploiting the sidelobe emissions of the beams illuminating the adjacent sub-swaths. This has been already demonstrated for ScanSAR mode while this paper analyzes in detail the TOPSAR mode based on measurements of ESA's recently launched satellite Sentinel-1A.

Original language	English
Title of host publication	2015 IEEE International Radar Conference, RadarCon 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	117-122
Number of pages	6
Edition	June
ISBN (Electronic)	9781479982325
DOIs	https://doi.org/10.1109/RADAR.2015.7130981
Publication status	Published - 22 Jun 2015
Event	2015 IEEE International Radar Conference, RadarCon 2015 - Arlington, United States Duration: 10 May 2015 → 15 May 2015

Publication series

Name	IEEE National Radar Conference - Proceedings
Number	June
Volume	2015-June
ISSN (Print)	1097-5659

Conference

Conference	2015 IEEE International Radar Conference, RadarCon 2015
Country/Territory	United States
City	Arlington
Period	10/05/15 → 15/05/15

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10.1109/RADAR.2015.7130981

radar15-kubicavAccepted author manuscript, 543 KBLicence: CC BY-NC-ND

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Kubica, V., Neyt, X., & Griffiths, H. (2015). Improved cross-range resolution in TOPSAR imaging using Sentinel-1A in bistatic operation. In 2015 IEEE International Radar Conference, RadarCon 2015 (June ed., pp. 117-122). Article 7130981 (IEEE National Radar Conference - Proceedings; Vol. 2015-June, No. June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RADAR.2015.7130981

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title = "Improved cross-range resolution in TOPSAR imaging using Sentinel-1A in bistatic operation",

abstract = "Wide-swath SAR imaging modes such as ScanSAR or TOPSAR offer synoptic observations of large-scale phenomena with a high revisit frequency at the expense of a degraded cross-range resolution. In the bistatic configuration using a SAR satellite as illuminator of opportunity and a ground-based stationary receiver close to the imaged area, this poor cross-range resolution can be improved in some favourable geometries by exploiting the sidelobe emissions of the beams illuminating the adjacent sub-swaths. This has been already demonstrated for ScanSAR mode while this paper analyzes in detail the TOPSAR mode based on measurements of ESA's recently launched satellite Sentinel-1A.",

author = "Virginie Kubica and Xavier Neyt and Hugh Griffiths",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 2015 IEEE International Radar Conference, RadarCon 2015 ; Conference date: 10-05-2015 Through 15-05-2015",

year = "2015",

month = jun,

day = "22",

doi = "10.1109/RADAR.2015.7130981",

language = "English",

series = "IEEE National Radar Conference - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Kubica, V, Neyt, X & Griffiths, H 2015, Improved cross-range resolution in TOPSAR imaging using Sentinel-1A in bistatic operation. in 2015 IEEE International Radar Conference, RadarCon 2015. June edn, 7130981, IEEE National Radar Conference - Proceedings, no. June, vol. 2015-June, Institute of Electrical and Electronics Engineers Inc., pp. 117-122, 2015 IEEE International Radar Conference, RadarCon 2015, Arlington, United States, 10/05/15. https://doi.org/10.1109/RADAR.2015.7130981

Improved cross-range resolution in TOPSAR imaging using Sentinel-1A in bistatic operation. / Kubica, Virginie; Neyt, Xavier; Griffiths, Hugh.
2015 IEEE International Radar Conference, RadarCon 2015. June. ed. Institute of Electrical and Electronics Engineers Inc., 2015. p. 117-122 7130981 (IEEE National Radar Conference - Proceedings; Vol. 2015-June, No. June).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Neyt, Xavier

AU - Griffiths, Hugh

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Y1 - 2015/6/22

N2 - Wide-swath SAR imaging modes such as ScanSAR or TOPSAR offer synoptic observations of large-scale phenomena with a high revisit frequency at the expense of a degraded cross-range resolution. In the bistatic configuration using a SAR satellite as illuminator of opportunity and a ground-based stationary receiver close to the imaged area, this poor cross-range resolution can be improved in some favourable geometries by exploiting the sidelobe emissions of the beams illuminating the adjacent sub-swaths. This has been already demonstrated for ScanSAR mode while this paper analyzes in detail the TOPSAR mode based on measurements of ESA's recently launched satellite Sentinel-1A.

AB - Wide-swath SAR imaging modes such as ScanSAR or TOPSAR offer synoptic observations of large-scale phenomena with a high revisit frequency at the expense of a degraded cross-range resolution. In the bistatic configuration using a SAR satellite as illuminator of opportunity and a ground-based stationary receiver close to the imaged area, this poor cross-range resolution can be improved in some favourable geometries by exploiting the sidelobe emissions of the beams illuminating the adjacent sub-swaths. This has been already demonstrated for ScanSAR mode while this paper analyzes in detail the TOPSAR mode based on measurements of ESA's recently launched satellite Sentinel-1A.

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ER -

Improved cross-range resolution in TOPSAR imaging using Sentinel-1A in bistatic operation

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