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PIER PIER B PIER C PIER M PIER Letters
2008-02-03
Kd-Tree Based Fast Ray Tracing for RCS Prediction
By
Yu Bo Tao,

    Dr. Yu Bo Tao

    College of Computer Science

    Zhejiang University

    P.R. China

    Homepage

Hai Lin,

    Professor Hai Lin

    Zhejiang University

    China

    Homepage

Hu Bao

    Dr. Hu Bao

    State Key Laboratory of CAD&CG

    Zhejiang University

    China

    Homepage

Progress In Electromagnetics Research, Vol. 81, 329-341, 2008
doi:10.2528/PIER08011305
Abstract
Ray tracing is of great use for computational electromagnetics, such as the well-known shooting and bouncing ray (SBR) method. In this paper, the kd-tree data structure, coupled with the mailbox technique, is proposed to accelerate the ray tracing in the SBR. The kd-tree is highly effective in handling the irregularly distribution of patches of the target, while the repeatedly intersection tests between the ray and the patch when using space division acceleration structures can be eliminated through the mailbox technique. Numerical results show excellent agreement with the measured data and the exact solution, and demonstrate that the kd-tree as well as the mailbox technique can greatly reduce the computation time.
Citation
Yu Bo Tao, Hai Lin, and Hu Bao, "Kd-Tree Based Fast Ray Tracing for RCS Prediction," Progress In Electromagnetics Research, Vol. 81, 329-341, 2008.
doi:10.2528/PIER08011305
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