IMAGING METHODS FOR DETECTION OF AIRFIELD RUNWAY DISASTER

摘要：

Ground penetrating radar (GPR) is often used in detecting void and cavities under the airfield runway.Delay and Sum (DAS) imaging method based on time-domain focusing of pulse-echo radar data is commonly applied in imaging technique.Image quality depends on echo amplitude and time delay of backscattered signal that picked up from elementary cell.In this paper,in order to improve the image quality,we decompose the target echoes by calculating the echo amplitude and time delay based on EM inversion theory and then image using DAS focusing method after disposing. The simulation results show that this method improve the image quality greatly.

关键词： Ground Penetrating Radar delay and sum echo decompose

作者: Zhiyong Han Hao Chen Jiaxue Liu Renbiao Wu

作者单位: Tianjin Key Lab for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,China.

会议类型: 国际会议

会议名称: 2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar(第二届亚太合成孔径雷达会议)

会议地点: 西安

会议语种:英文

页码: 552-555

在线出版日期: 2009-10-26（万方平台首次上网日期，不代表论文的发表时间）