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Hybrid GPU-Based Single- and Double-Bounce SAR Simulation

T. Balz, U. Stilla
State Key Lab. of Inf. Eng. in Surveying, Wuhan Univ., Wuhan, China
Geoscience and Remote Sensing, IEEE Transactions on, Vol. 47, No. 10. (14 July 2009), pp. 3519-3529.

@article{balz2009hybrid,

   title={Hybrid GPU-Based Single-and Double-Bounce SAR Simulation},

   author={Balz, T. and Stilla, U.},

   journal={Geoscience and Remote Sensing, IEEE Transactions on},

   volume={47},

   number={10},

   pages={3519–3529},

   year={2009},

   publisher={IEEE}

}

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In this paper, a new hybrid graphics-processing-unit (GPU)-based real-time synthetic aperture radar (SAR) simulation system is presented. Previous real-time SAR simulators only supported single-bounce simulation in real time. The new hybrid system uses the rasterization approach for real-time single-bounce simulation and a new image-based GPU ray-tracing approach for monostatic SAR double-bounce simulation. This approach provides fast simulation results even while simulating complex and extended scenes. The simulation results are compared to a high-resolution airborne SAR image, and the limitations of the approach are discussed.
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