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自适应八叉树技术加速高频二次散射场计算
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摘要
在解决电大尺寸复杂目标的问题中,相比于一般数值方法,高频近似算法具有高效快速的特点。对复杂目标模型,考察其二次散射场非常必要,而二次散射场计算过程中消隐过程比较耗时,本文采用自适应八叉树技术对二次消隐过程进行加速。实验结果显示,加速后的目标RCS与其他精确结果 RCS吻合良好。
compared with the numerical method, the high frequency approximation algorithm is efficient and fast in solving the problems of electrically large complex target. Due to the calculation of secondary scattering field component in the high frequency algorithm for complex electrically large target very time-consuming, it is necessary to research a accelerating algorithm. The application of adaptive octree technology accelerates high frequency prediction of double reflection. The experimental results indicate that the results of RCS accelerated are in good agreement with the results of the exact solutions.
引文
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