Echo simulation and application of multi-channel interferometric SAR based on OptiX

Jiajun Wu; Peng Liu; Qi Zhang; Zhenhao Bai; Zhenfang Li; Yashi Zhou; Jian Ma

doi:10.1117/12.3037570

4 December 2024 Echo simulation and application of multi-channel interferometric SAR based on OptiX

Jiajun Wu, Peng Liu, Qi Zhang, Zhenhao Bai, Zhenfang Li, Yashi Zhou, Jian Ma

Author Affiliations +

Proceedings Volume 13283, Conference on Spectral Technology and Applications (CSTA 2024); 1328355 (2024) https://doi.org/10.1117/12.3037570
Event: Conference on Spectral Technology and Applications (CSTA 2024), 2024, Dalian, China

Abstract

Azimuth multi-channel interferometric synthetic aperture radar (SAR) achieves imaging and DEM product generation while simultaneously ensuring high resolution and wide observation swath. To achieve rapid and precise echo simulation in multi-channel interferometric SAR, a novel approach leveraging OptiX-based simulation is proposed. This method utilizes OptiX, a ray tracing engine, for acceleration, and introduces a multiple scattering precise delay calculation algorithm to ensure high phase accuracy. The simulated results are validated using an echo simulator to verify their authenticity and utility. By fully leveraging the GPU's hardware ray tracing core, this method significantly enhances the computational speed of echo simulations. Moreover, its integration into echo simulators provides invaluable data sources for system debugging of multi-channel interferometric SAR, offering substantial auxiliary benefits for SAR applications, particularly in remote sensing and geospatial analysis.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jiajun Wu, Peng Liu, Qi Zhang, Zhenhao Bai, Zhenfang Li, Yashi Zhou, and Jian Ma "Echo simulation and application of multi-channel interferometric SAR based on OptiX", Proc. SPIE 13283, Conference on Spectral Technology and Applications (CSTA 2024), 1328355 (4 December 2024); https://doi.org/10.1117/12.3037570

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