基于波动方程的近场目标成像算法  

Near Field Target Radar Imaging Algorithm Based on Wave Equation

作　　者：雷文太[1] 黄春琳[2] 

机构地区：[1]空军工程大学工程学院,陕西西安710038 [2]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《微计算机信息》2009年第15期210-212,共3页Control & Automation

基　　金：基金申请人:黄春琳;项目名称:基于阵列天线扫描的多维穿透成像技术;基金颁发部门:国家自然科学基金委(60602022)

摘　　要：雷达对近场目标的探测成像是探地雷达成像和微波医学成像的基本模型。为得到高分辨的近场目标雷达图像,论文从标量波动方程出发通过波散关系导出了目标散射信号和目标函数之间的对应关系,得到了谱域和时域的多种成像算法并分析了它们之间的联系。通过对实测雷达数据的成像处理,结果显示了近场成像算法的有效性。In the application of ground penetrating radar （GPR） and microwave medical imaging, radar is a usual equipment to detect targets located at near field. To obtain high resolution imaging results of near-field objects, the relationship of objects scattering radargram and its spatial function is established based on scalar wave equation. Under the restriction of electromagnetic wave equation, imaging algorithms in both spatial spectrum domain and time domain are educed and their relationships are analyzed subsequently. Through processing actual radargranl obtained by a GPR system-RadarEye, the imaging algorithms validate their capabilities at the aspect of GPR near field imaging application.

关 键 词：雷达成像 近场 探地雷达 

分 类 号：TN95[电子电信—信号与信息处理]