Hybrid GPU-based single- and double-bounce SAR simulation

Timo Balz; Uwe Stilla

doi:10.1109/TGRS.2009.2022326

Hybrid GPU-based single- and double-bounce SAR simulation

Timo Balz, Uwe Stilla

Associate Professorship of Photogrammetry and Remote Sensing

Wuhan University

Research output: Contribution to journal › Article › peer-review

129 Scopus citations

Abstract

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.

Original language	English
Article number	23
Pages (from-to)	3519-3529
Number of pages	11
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	47
Issue number	10
DOIs	https://doi.org/10.1109/TGRS.2009.2022326
State	Published - Oct 2009

Keywords

Graphics processing unit (GPU)
Ray tracing
Simulation
Synthetic aperture radar (SAR)

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10.1109/TGRS.2009.2022326

Cite this

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abstract = "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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note = "Funding Information: Manuscript received June 23, 2008; revised December 4, 2008 and March 9, 2009. First published July 14, 2009; current version published September 29, 2009. The work of T. Balz was supported in part by the National Key Basic Research and Development Program of China under Grant 2007CB714405.",

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AB - 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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Hybrid GPU-based single- and double-bounce SAR simulation

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