Implementation of fast airborne synthetic aperture radar simulation

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dc.contributor.advisorWilkinson, A J
dc.contributor.authorKao, Hui-Shun
dc.date.accessioned2024-06-26T06:44:22Z
dc.date.available2024-06-26T06:44:22Z
dc.date.issued2004
dc.date.updated2024-06-25T13:57:18Z
dc.description.abstractSynthetic Aperture Radar (SAR) is a powerful tool to map the topographic data of the Earth surface regardless of weather and optical illumination effects. Since nowadays the modem aircraft may be fitted with SAR facility, the aim of this dissertation is to develop fast algorithms for a fast or real-time like SAR simulator which could aid in airplane pilot training. In this dissertation, a geometric approach to the topographic mapping of SAR was studied and then implemented using computer software. In particular, the effect of antenna flight path on the outcome of Synthetic Aperture Radar was examined. To generate necessary data, a SAR simulator was implemented. The geometric relationship between radar sensor and imaging terrain forms the central core of the software. A technique to find a set of sample points on the observed scene in the antenna zero-Doppler plane was examined. A method to work out the scattering points ( center position of resolution cell) was examined, which is based on the derived sample point set and the vector geometry of the observation system. Using the information of scattering points as a basis, techniques to work out radar layover and shadow maps, slant range area to ground range area conversion, backscattering coefficients of scene, SAR power image and signal distribution were derived. The values of backscattering coefficient were based on the empirical data from Ulaby and Dobson's work. Finally, the computer generated results were compared to real SAR results to verify the accuracy and realism of the simulator. A performance evaluation for the processing speed of the simulator was discussed.
dc.identifier.apacitationKao, H. (2004). <i>Implementation of fast airborne synthetic aperture radar simulation</i>. (). ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/40019en_ZA
dc.identifier.chicagocitationKao, Hui-Shun. <i>"Implementation of fast airborne synthetic aperture radar simulation."</i> ., ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2004. http://hdl.handle.net/11427/40019en_ZA
dc.identifier.citationKao, H. 2004. Implementation of fast airborne synthetic aperture radar simulation. . ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. http://hdl.handle.net/11427/40019en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Kao, Hui-Shun AB - Synthetic Aperture Radar (SAR) is a powerful tool to map the topographic data of the Earth surface regardless of weather and optical illumination effects. Since nowadays the modem aircraft may be fitted with SAR facility, the aim of this dissertation is to develop fast algorithms for a fast or real-time like SAR simulator which could aid in airplane pilot training. In this dissertation, a geometric approach to the topographic mapping of SAR was studied and then implemented using computer software. In particular, the effect of antenna flight path on the outcome of Synthetic Aperture Radar was examined. To generate necessary data, a SAR simulator was implemented. The geometric relationship between radar sensor and imaging terrain forms the central core of the software. A technique to find a set of sample points on the observed scene in the antenna zero-Doppler plane was examined. A method to work out the scattering points ( center position of resolution cell) was examined, which is based on the derived sample point set and the vector geometry of the observation system. Using the information of scattering points as a basis, techniques to work out radar layover and shadow maps, slant range area to ground range area conversion, backscattering coefficients of scene, SAR power image and signal distribution were derived. The values of backscattering coefficient were based on the empirical data from Ulaby and Dobson's work. Finally, the computer generated results were compared to real SAR results to verify the accuracy and realism of the simulator. A performance evaluation for the processing speed of the simulator was discussed. DA - 2004 DB - OpenUCT DP - University of Cape Town KW - Electrical Engineering LK - https://open.uct.ac.za PY - 2004 T1 - Implementation of fast airborne synthetic aperture radar simulation TI - Implementation of fast airborne synthetic aperture radar simulation UR - http://hdl.handle.net/11427/40019 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/40019
dc.identifier.vancouvercitationKao H. Implementation of fast airborne synthetic aperture radar simulation. []. ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2004 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/40019en_ZA
dc.language.rfc3066eng
dc.publisher.departmentDepartment of Electrical Engineering
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.subjectElectrical Engineering
dc.titleImplementation of fast airborne synthetic aperture radar simulation
dc.typeThesis / Dissertation
dc.type.qualificationlevelMasters
dc.type.qualificationlevelMSc
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