Abstract
This manuscript illustrates some key problems about Geosynchronous circular SAR system. Geo-CSAR possesses the potential ability of 3D surface resolving power through variant angle of view. Due to especial requirement of the satellite trajectory, the Geo-CSAR satellite’s six orbital key parameters could be calculated and designed detailedly. Furthermore, this paper illuminates a 3-D imaging signal model of Geo-CSAR during its long integration time according to the satellite’s curve trajectory. Lastly, a designing approach of its key system parameters is proposed in this manuscript. A simulation experiment is performed to verify the efficiency and superiority of this approach, and the results represent that it has a good effect on an L-band mode Geo-CSAR tomography system with elevation resolution higher than 5 m.
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Acknowledgements
Thanks for the support from the national natural science foundation of China ‘Analysis on the non-ideal factors in Geo-SAR tomography imaging’ (ID: 61601022) and the national key R&D Program (ID: 2017YFB0502700).
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Zhao, B., Zhang, Q., Dai, C., Li, H., Lv, Z., Liang, J. (2019). Signal Model and System Parameter Study for Geosynchronous Circular SAR. In: Wang, L., Wu, Y., Gong, J. (eds) Proceedings of the 5th China High Resolution Earth Observation Conference (CHREOC 2018). CHREOC 2018. Lecture Notes in Electrical Engineering, vol 552. Springer, Singapore. https://doi.org/10.1007/978-981-13-6553-9_6
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DOI: https://doi.org/10.1007/978-981-13-6553-9_6
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