Abstract
Synthetic aperture radar plays a key role in remote sensing applications ranging from mapping earth’s surface to disaster monitoring applications. Accuracy or correctness of SAR data or images is commendable in all these applications. Component aging and gain fluctuations in receiver and transmitter and atmospheric factors cause deviations in SAR performance which necessitates frequent SAR calibration. Validating the measured value against the standard or reference value is known as SAR calibration. SAR calibration is also essential as to compare the measured data with similar other sensors. This paper brings out several aspects of RISAT-1 FRS mode SAR image calibration using standard point targets such as corner reflectors. Integral method of calibration is demonstrated on RISAT-1 SAR sample image and the calibration factor is determined and validated.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Tapan Misra SS, Rana NM, Desai DB, Dave1 Rajeevjyoti1 RK, Arora1 CVN, Rao1 BV, Bakori1 R, Neelakantan, Vachchani JG (2013) Synthetic aperture radar payload on-board RISAT-1: configuration, technology and performance. Current Sci 104:446–461
Ganesan PG, Jagdhuber T (2016) Soil moisture estimation using hybrid polarimetric SAR data of RISAT-1. IEEE Trans Geosci Remote Sens 54:2033–2049
Gupta M, Sharma A, Karthikeyan B (2014) SAR image quality assessment of RISAT-1 SAR using trihedral corner reflectors in different beams. J Geomat 8:130–139
Touzi R, Hawkins RK, Cote S (2013) High-precision assessment and calibration of polarimetric RADARSAT-2 SAR using transponder measurements. IEEE Trans Geosci Remote Sens 51:487–503
Lacomme P, Marchais J-C, Hardange J-P, Normant E (2001) Air and spaceborne radar systems: an introduction, 1st edn. William Andrew Publishing, LLC, ISBN-13:978-1891121135
Manjula TR Calibration site selection. Technical report: JU/ISRO/RESPOND/2017/TR-03, Jain University Bangalore
Ulander LMH (1991) Accuracy of using point targets for SAR calibration. IEEE Trans Aerosp Electron Syst 27:139–148
Praveen TN, Vinod Raju M, Vishwanath BD, Meghana P, Manjula TR, Raju G (2018) Absolute radiometric calibration of SAR image using peak method. In: Submitted to 3rd IEEE international conference on recent trends in electronics, information and communication technology, (RTEICT-2018)
Mishra MD, Patel P, Srivastava HS et al (2015) Absolute radiometric calibration of SAR data using standard targets. Int J Remote Sens Geosci (IJRSG) 4:28–32
Acknowledgements
Authors are thankful to SAC ISRO Respond team members and the SAC focal persons for guidance and support in various stages of the project phases. We acknowledge all those who directly and indirectly supported in writing this article.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Manjula, T.R., Praveen, T.N., Vinod Raju, M., Vishwanath, B.D., Meghana, P., Raju, G. (2019). Radiometric Calibration of RISAT-1 SAR Image Using Integral Method. In: Bera, R., Sarkar, S., Singh, O., Saikia, H. (eds) Advances in Communication, Devices and Networking. Lecture Notes in Electrical Engineering, vol 537. Springer, Singapore. https://doi.org/10.1007/978-981-13-3450-4_13
Download citation
DOI: https://doi.org/10.1007/978-981-13-3450-4_13
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-3449-8
Online ISBN: 978-981-13-3450-4
eBook Packages: EngineeringEngineering (R0)