摘要
利用C-R样条对目标体进行几何建模,应用物理光学法与等效电磁流法计算目标面元及棱边的电磁散射。目标在空中的姿态及轨迹由动力学和运动学方程确定。提出将抖动模型应用于飞行目标雷达散射截面(RCS)计算,随机抖动的影响归结为在飞行坐标系中目标的俯仰角和方位角的变化,计算出不同时刻不同姿态下目标的RCS,并给出计算结果。该方法对运动目标RCS、隐身与反隐身技术及仿真技术的研究,具有重要的实用价值。
The radar target is modeled in geometry by CR curves,and the scattering characterization of the flying radar target is presented based on the methods of physical optics(PO) and equivalent electromagnetic current(EMC). The pose and trajectory of the flying radar target are calculated by means of dynamical and kinematical equations. And in the computation of radar cross section(RCS) of the flying radar target,the target's random wobble is attributed to the change of pitch and yaw of the target in the kinetic coordinate system,and the results of real time RCS are presented. The presented method is beneficial to the study of the RCS of moving targets and the stealth/antistealth and simulation technology.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2003年第5期1021-1024,共4页
Journal of Hefei University of Technology：Natural Science
基金
安徽省教育厅自然科学基金重点资助项目(2002KJ032ZD)
