Mazimum likelihood method for time-delay estimation of multiple echoes

摘要：

When the ground-penetrating radar (GPR) is used as a non-destructive testing method in the field of civil engineering,the thickness of the mediums can be deduced from radar profiles by echo detection,which provides the time-delay estimation (TDE) associated with each interface.In order to improve the performance of TDE,this paper proposes a new technique based on maximum likelihood principle for estimating the time delays. The proposed method takes into account the multiple echoes phenomena of the propagation of underground wave.

关键词： Ground-penetrating radar (GPR) Time-delay estimation (TDE) Mazimum likelihood estimation (MLE) multiple echoes.

作者: Limei LIU Cedric Le BASTARD Yide WANG Yun ZHANG

作者单位: Guangdong University of Technology,Guangzhou,510006,China Public Works Regional Laboratory,ERA 17,Angers,49136,France Ecole polytechniquc de Tuniversite de Nantes,Nantes,44306,France

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: 931-934

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）