Akshay Pandit Vetal, A. Kesarkar, Ashok Rohada, Ayush Jha, Diksha Sharma, J. Rao, P. Nath, R. Bhan, R. Jyoti
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System Design of Interferometric SAR to Meet HRTI-3 Standards
In this paper, we propose the system configuration to execute SAR Interferometry which meets HRTI-3 (High Resolution Terrain Information) standards. For this purpose, we derive the maximum and minimum perpendicular baseline numbers over helical orbit and further tune the upper limit on off-nadir distance. We analyze the resultant overall relative height accuracy considering the impacts of: 1) Interferometric phase errors due to degradation in total correlation and 2) Baseline estimation errors.