摘要
采用图形电磁计算方法计算复杂目标电磁散射特性时,因采用局部光照模型,在多次散射情况下有较大的误差。在研究光线跟踪算法原理和电磁散射物理光学理论的基础上,提出了复杂目标电磁散射计算的光线跟踪算法,并利用图形处理器(GPU)实现了该算法的硬件加速。计算结果表明,算法在提高计算精度的同时达到了与图形电磁计算方法相当的实时性,具有很好的工程应用价值。
Because of the local shading model, Graphical Electromagnetic Computing （GRECO） method has some errors under Multiscattering. A new algorithm for RCS of complex objects was proposed based on ray-tracing and Physical Optics （PO） theory, The algorithm is realized on GPU to use the ability of graphics hardware, According to computing results, the computing speed is as fast as GRECO＇s. The efficiency and accuracy of the algorithm have practical engineering value.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2006年第8期2214-2218,共5页
Journal of System Simulation
基金
国防预研基金(413040402)
