摘要
针对舰船雷达目标雷达散射截面计算问题,提出了一种将快速建模和改进的图形电磁算法相结合的方法。利用搜集的舰船素材和建模软件对某型舰船进行较为精确的外形仿真建模,运用物理光学法和增量长度绕射系数法结合的改进图形电磁算法较为准确地计算了雷达散射截面。仿真实验表明,该算法在近实时条件下可得到良好的SAR图像仿真结果。
To compute Radar Cross Section （RCS） in high frequency region, a method that combined with fast modeling and irnpmved graphic electromagnetic computing was presented. Using the collecting information of ship and the modeling software, the figure of the ship was modeled accurately, the radar cross section was computed exactly by improved graphic electromagnetic computing algorithms integrated Physical Optics （PO） method and Incremental Length Diffraction Caoeffcients （IIX）C） method, simulation experiment shows that it can get a good simulation result of SAR images by this nearly real-time method.
出处
《计算机应用》
CSCD
北大核心
2007年第9期2120-2122,共3页
journal of Computer Applications
基金
国防科技重点实验室ATR基金资助项目(51483040105ZS9317)
装备预研项目(51303020102-3)
关键词
几何建模
雷达散射截面
图形电磁计算
SAR仿真
geometry modeling
Radar Cross Section （RCS）
graphic electromagnetic computing
SAR simulation
