State-of-the-art of elevation extraction from satellite SAR data |
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| Institution: | 1. University of Science and Technology of China, Hefei, Anhui 230026, China;2. Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, Anhui 230031, China;1. Harvard Medical School, Brigham and Women''s Hospital, Division of Urology, Boston, MA, USA;2. Harvard Medical School, Boston Children''s Hospital, Department of Urology, Boston, MA, USA;3. Harvard Medical School, Boston Children''s Hospital, Division of Nephrology, Boston, MA, USA;1. Energy and Building Research Center, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat 13109, Kuwait;2. Center of Research Excellence in Renewable Energy (CoRe-RE), Research Institute, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia;3. Solar Energy Research Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;4. Mechanical Engineering Department, Al Jabal Al Gharbi University, Libya;1. School of Mechanical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran;2. Vehicle, Fuel and Environment Research Institute, School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 1439956191, Iran;1. Intergia Energía Sostenible S.L., Avda. Autonomía, 7, Edificio Cero Emisiones, 50003 Zaragoza, Spain;2. Electrical Engineering Department, University of Zaragoza, Calle María de Luna, 3, 50018 Zaragoza, Spain;1. Fenner School of Environment and Society, The Australian National University, 2601 Canberra, Australia;2. Fraunhofer Institute for Solar Energy Systems ISE, 79100 Freiburg, Germany;3. Department of Engineering Sciences, Uppsala University, Lgerhyddsvgen 1, 752 37 Uppsala, Sweden;4. MINES ParisTech, PSL Research University, O.I.E. Centre Observation, Impacts, Energy, 06904 Sophia Antipolis, France;5. Copernicus Institute of Sustainable Development, Utrecht University, 3508 TC Utrecht, The Netherlands;6. Sheffield Solar, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK |
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| Abstract: | Relative or absolute elevation extraction from satellite radar data has been an active research topic for more than 20 years. Various investigations have been made on different methods depending on the predominant “fashion” and data availability, leading each time to new developments to improve the capability and the applicability of each method. The paper presents an update of the state-of-the-art of elevation extraction from satellite SAR data. The performance and limitations of four different methods (clinometry, stereoscopy, interferometry and polarimetry) are reviewed, as well as their applicability to different satellite SAR sensors. Their advantages and disadvantages and how they are addressed during the data processing are also analysed. Finally, concluding remarks look at the complementarity aspects of each method to make the best use of the existing and future radar data for elevation extraction. |
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