Abstract
Aiming at the high altitude and long synthetic aperture time of the geostationary orbit SAR (GEOSAR) system, this paper has the characteristics of the different imaging model algorithm with the low orbit spaceborne SAR (LEOSAR), and analyzes its unique system characteristics in detail. The GEOSAR space geometric model, echo signal model, imaging algorithm, and process are studied and introduced. An optimal time domain compensation scheme is used to change the nonlinear time–frequency relation of the signal and weaken azimuth denaturation, and then combined with the frequency domain algorithm of two-dimensional NCS, the large scene image processing is carried out, and the experiment simulation is carried out. The research content has certain applicability and can be used as a basic theoretical research achievement for subsequent test stars.
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Zhou, X., Tang, D., Li, C., Lao, L. (2019). Research on Key Technologies of Geosynchronous SAR Imaging System. 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_2
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DOI: https://doi.org/10.1007/978-981-13-6553-9_2
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