摘要
为了研究复杂结构的雷达散射截面(RCS)高效计算问题,本文找到了一种用矩形等效三角形或机翼曲面结构的近似方法。该方法能有效降低时域有限差分(FDTD)方法的计算区域网格数目,减少程序运行的时间步。用FDTD方法计算的特殊几何模型的雷达散射截面,验证了算法的精度和效率。
In order to implement complex structure's high efficient calculation problem of radar cross section ( RCS ), a fast algorithm to constitute a rectangular to take place of triangle or wing structure is found, which can reduce the finite difference time domain (FDTD) method's calculation lattices and calculation time. Several special geometric models' RCS based on FDTD verify the precision and efficiency of algorithm.
出处
《天津工程师范学院学报》
2008年第1期12-16,共5页
Journal of Tianji University of Technology and Education
基金
教育部科学技术研究重点项目(207007)