基于移动散射点模型的雷达回波仿真及分析  

Simulation and Analysis of Radar Echo Based on Moving Scattering Center Model

作　　者：薛爱军[1] 王晓丹[1] 宋亚飞[1] 雷蕾[1] 

机构地区：[1]空军工程大学防空反导学院,西安710051

出　　处：《计算机科学》2013年第9期201-203,207,共4页Computer Science

基　　金：国家自然科学基金项目(60975026;61273275;61102109)资助

摘　　要：针对中段目标宽带雷达回波信号难于获取的问题,进一步研究了目标雷达视线角和中段目标姿态的建模方法,给出了基于移动散射点模型的散射中心位置计算公式,然后基于几何绕射理论计算了各散射中心的散射强度,最后对雷达一维距离像进行归一化处理,提取了散射点的相对距离特征,得到了散射点相对距离变化的特征序列。实验结果显示,对雷达一维距离像进行特征提取,可以得到中段目标的姿态信息,为中段目标识别奠定基础。Because it is difficult to obtain Midcourse Target＇s Wideband Radar Echo, the aspect angles and posture of warhead target modeling methods was further studied. Computational formula of scattering center locations were raised based on the moving scattering center model. Then, scattering intensities of every scattering center were calculated based on geometry diffraction theory. Lastly, after normalizing the high resolution range profiles（HRRP）, relative ran-ges of scattering center were calculated and relative ranges variation array of scattering center was obtained. Experiment result shows that feature extraction of HRRP can get the information for Midcourse Target＇s posture and provide im-portant foundations to mid-course target recognition.

关 键 词：移动散射点模型 几何绕射理论 相对距离 目标识别 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]