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Radiometric calibration stability assessment of Sentinel-1B using point targets at Surat Basin, Australia

Published online by Cambridge University Press:  02 February 2022

Sowkhya Badatala Open the ORCID record for Sowkhya Badatala [Opens in a new window] ,
Shweta Sharma ,
Saurabh Tripathi ,
Parul R. Patel  and
Aloke K. Mathur
Sowkhya Badatala*
Affiliation:
Institute of Technology, Nirma University, Ahmedabad 382481, Gujarat, India
Shweta Sharma
Affiliation:
Calibration and Validation Division, Space Applications Centre-ISRO, Ahmedabad 380015, Gujarat, India
Saurabh Tripathi
Affiliation:
Calibration and Validation Division, Space Applications Centre-ISRO, Ahmedabad 380015, Gujarat, India
Parul R. Patel
Affiliation:
Institute of Technology, Nirma University, Ahmedabad 382481, Gujarat, India
Aloke K. Mathur
Affiliation:
Calibration and Validation Division, Space Applications Centre-ISRO, Ahmedabad 380015, Gujarat, India
*
Author for correspondence: Sowkhya Badatala, E-mail: sowkhyab@gmail.com
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Abstract

The launch of the Sentinel-1B satellite in April 2016 completed the two-satellite synthetic aperture radar (SAR) constellation of the European Copernicus Sentinel-1 mission. The European Space Agency executed the calibration of this sensor during the commissioning phase and an independent calibration by the German Aerospace Center (DLR) in 2016. The calibration parameters must be monitored to assess the stability of the instrument. This study reports the temporal stability assessment of radiometric calibration and image quality parameters of Sentinel-1B SAR data using the corner reflector (CR) array, Surat Basin, Australia. Impulse response functions generated from the CRs in the satellite images were used to derive the image quality parameters. The average radar cross-section difference between estimated and theoretical values (38.40 dB m2) was 0.53 dB m2 for 1.5 m CRs, which is accordant with the absolute radiometric accuracy specified for the Sentinel-1 SAR system. Derived image quality parameters viz. the mean peak-to-side lobe ratio, mean integrated side lobe ratio, and spatial resolutions in the range and azimuth directions were found to be accordant with the specified value for the Sentinel-1 SAR system. The results indicate the excellent quality of the Sentinel-1B data.

Keywords

Sentinel-1Bimage quality parametersimpulse response functionsspatial resolutionsISLRPSLR
Type
Radar
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 10 , December 2022 , pp. 1262 - 1269
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Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press in association with the European Microwave Association

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References

Schmidt, K, Tous Ramon, N and Schwerdt, M (2018) Radiometric accuracy and stability of Sentinel-1A determined using point targets. International Journal of Microwave and Wireless Technologies 10, 538–546.CrossRefGoogle Scholar
Miranda, N, Meadows, PJ, Pilgrim, A, Piantanida, R, Recchia, A, Giudici, D, Small, D and Schubert, A (2016) Sentinel-1B preliminary results obtained during the orbit acquisition phase [work in progress]. Procedia Computer Science 100, 1313–1318.Google Scholar
Schwerdt, M, Schmidt, K, Tous Ramon, N, Alfonzo, GC, Doring, B, Zink, M and Prats, P (2016) Sentinel-1B independent in-orbit system calibration – first results. In Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar, Proceedings of. VDE.Google Scholar
Schwerdt, M, Schmidt, K, Tous Ramon, N, Klenk, P, Yague-Martinez, N, Prats-Iraola, P, Zink, M and Geudtner, D (2017) Independent system calibration of Sentinel-1B. Remote Sensing 9, 511.CrossRefGoogle Scholar
Das Narendra, N, Entekhabi, D, Dunbar, RS, Chaubell, MJ, Colliander, A, Yueh, S, Jagdhuber, T, Chen, F, Crow, W, O'Neill, PE and Walker, JP (2019) The SMAP and Copernicus Sentinel 1A/B microwave active-passive high resolution surface soil moisture product. Remote Sensing of Environment 233, 111380.Google Scholar
Liu, Y, Gong, W, Xing, Y, Hu, X and Gong, J (2019) Estimation of the forest stand mean height and aboveground biomass in Northeast China using SAR Sentinel-1B, multispectral Sentinel-2A, and DEM imagery. Journal of Photogrammetry and Remote Sensing 151, 277–289.CrossRefGoogle Scholar
Miranda, N, Meadows, P, Piantanida, R, Recchia, A, Small, D, Schubert, A, Vincent, P, Geudtner, D, Navas-Traver, I and Vega, FC (2017) The Sentinel-1 constellation mission performance. In Proceedings of 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS).Google Scholar
Schmidt, K, Tous Ramon, N and Schwerdt, M (2018) Radiometric accuracy and long-term stability of Sentinel-1A and Sentinel-1B. In Proceedings of EUSAR 2018: 12th European Conference on Synthetic Aperture Radar, Proceedings of. VDE.Google Scholar
Schmidt, K, Schwerdt, M, Miranda, N and Reimann, J (2020) Radiometric comparison within the Sentinel-1 SAR constellation over a wide backscatter range. Remote Sensing 12, 854.CrossRefGoogle Scholar
Schmidt, K, Schwerdt, M and Miranda, N (2021) Inter-comparability of radiometric performance between Sentinel-1A and Sentinel-1B. In Proceedings of EUSAR 2021: 13th European Conference on Synthetic Aperture Radar, Proceedings of. VDE.Google Scholar
Miranda, N, Meadows, P, Piantanida, R, Recchia, A, Franceschi, N, Hajduch, G, Husson, R, Vincent, P, Schubert, D, Small, A and Mouche, A (2021) A Sentinel-1A/B SAR calibration and performance status. In Proceedings of EUSAR 2021: 13th European Conference on Synthetic Aperture Radar, Proceedings of. VDE.Google Scholar
Garthwaite, MC, Nancarrow, S, Hislop, A, Thankappan, M, Dawson, JH and Lawrie, S (2015) The design of radar corner reflectors for the Australian geophysical observing system: a single design suitable for InSAR deformation monitoring and SAR calibration at multiple microwave frequency bands. Geoscience Australia 3, 490.Google Scholar
Gray, AL, Vachon, PW, Livingstone, CE and Lukowski, TI (1990) Synthetic aperture radar calibration using reference reflectors. IEEE Transactions on Geoscience and Remote Sensing 28, 374–383.CrossRefGoogle Scholar
Sharma, S, Dadhich, G, Rambhia, M, Mathur, AK, Prajapati, RP, Patel, PR and Shukla, A (2017) Radiometric calibration stability assessment for the RISAT-1 SAR sensor using a deployed point target array at the Desalpar site, Rann of Kutch, India. International Journal of Remote Sensing 38, 7242–7259.Google Scholar
Freeman, A (1992) SAR calibration: an overview. IEEE Transactions on Geoscience and Remote Sensing 30, 1107–1121.CrossRefGoogle Scholar
Panozzo, M (2012) Master in Emergency Early Warning and Response Space Applications SAR Image Quality Assessment Seminar Final Report.Google Scholar
Curlander, JC and McDonough, RN (1991) Synthetic Aperture Radar. New York: Wiley.Google Scholar
Dadhich, G, Sharma, S, Rambhia, M, Mathur, AK, Patel, PR and Shukla, A (2019) Image quality characterization of fine resolution RISAT-1 data using impulse response function. Geocarto International 34, 586–596.Google Scholar
Letsch, K and Berens, P (2005) PSLR estimation for SAR systems with consideration of clutter background. In Proceedings of SPIE 5980, SAR Image Analysis, Modelling, and Techniques VII, Belgium.Google Scholar
Oliver, C and Quegan, S (2004) Understanding Synthetic Aperture Radar Images. Raleigh, NC: SciTech Publishing.Google Scholar
Introduction to Measurements & Error Analysis (Online document). Available at https://www.webassign.net/question_assets/unccolphysmechl1/measurements/manual.html (Accessed 28 October 2021).Google Scholar
Livingston, SA (2018) Test reliability – basic concepts (research memorandum No. RM-18-01), Princeton, NJ: Educational Testing Service.Google Scholar
Bourbigot, M, Johnsen, H, Riccardo, P and Hajduch, G. Sentinel-1 product definition. Available at https://sentinel.esa.int/documents/247904/1877131/Sentinel-1-Product-Definition.pdf/6049ee42-6dc7-4e76-9886-f7a72f5631f3?t=1461673251000 (Accessed 16 June 2021).Google Scholar