摘要
按照系统仿真技术的一般方法研究了面向识别的雷达回波仿真技术的基本原理和模型。根据目标的三维CAD模型,利用电磁计算方法得到全姿态的一维距离像模板。在凝视状态下,利用雷达发射信号和目标的一维距离像模板模拟目标低分辨率回波;在扫描状态下,利用全姿态一维距离像重构不同角区中目标的散射中心模型,结合雷达波束的扫描方式获得仿真回波。最后立足仿真结果的校验,提出了可用于分析雷达目标回波仿真技术可信度的一些准则和方法。
The basic model of radar echo simulation in engineering application of target recognition is given according to general method of system simulation technology. With the application of 3D CAD model of ship targets, the high resolution range profile（HRRP） templates at full azimuth angles are computed. Thus, the low-resolution echoes in the staring state are obtained using HRRP templates and radar signals. While in the scanning state, the scattering center models in each angle sector are firstly reconstructed on the basis of high resolution range profiles. Subsequently, with the consideration of antenna scanning the corresponding low-resolution echoes are obtained. Finally, on the basis of simulated results, some rules and methods that can be used to analyse the credibility of the radar target echo simulation technique are proposed. The numeric results verify the validity of the proposed method.
出处
《雷达科学与技术》
2010年第1期54-59,共6页
Radar Science and Technology
关键词
雷达
回波
仿真
可信度
radar
echo
simulation
credibility
