实现浅地层探地雷达快速合成孔径成像的一种有效方法  

An Effective Method for Realizing Fast Synthetic Aperture Imaging of Shallow Subsurface Ground Penetrating Radar

作　　者：张春城[1] 孔令讲[2] 周正欧[2] 

机构地区：[1]华东电子工程研究所,安徽合肥230031 [2]电子科技大学电子工程学院,四川成都610054

出　　处：《现代电子技术》2006年第24期111-114,共4页Modern Electronics Technique

摘　　要：通过分析浅地层探地雷达回波数据的特点,提出通过基于回波数据的方差与A scan能量的特征来确定目标回波数据在整个回波数据中的分布区域,并只用该区域数据参与探地雷达合成孔径成像运算,从而排除非目标回波数据对合成孔径成像的影响,减少合成孔径运算量,实现快速合成孔径成像。通过对实测数据进行处理,结果表明,所提快速实现方法的成像效果与普通实现方法的成像效果相当,而处理速度与普通实现方法相比有了极大的提高。This paper analyzes characteristic of shallow subsurface ground penetrating radar received data, presents deciding target reflected waves distribution area in whole received data by the characteristic of variance and A - scan energy of the data, in synthetic aperture imaging operation only use the target reflected waves distribution area data, thereby eliminates the non- target reflected data impact on synthetic aperture imaging, reduces operation in synthetic aperture imaging, realizes fast synthetic aperture imaging. The results of processing measurement data show this method is very effective, and the processing speed is enhanced greatly comparing with general synthetic aperture imaging method.

关 键 词：探地雷达 合成孔径成像 方差 能量 

分 类 号：TN955.1[电子电信—信号与信息处理]