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ASSESSING THE CONDITION OF BURIED PIPE USING GROUND PENETRATING RADAR (GPR)
Ground Penetrating Radar (GPR) Pipe deterioration Buried utilities
2018/11/8
The invention of Ground Penetrating Radar (GPR) technology has facilitated the possibility of detecting buried utilities and has been used primarily in civil engineering for detecting structural defec...
An experiment on a sand-dune environment in Southern Venetian coast based on GPR, VES and documentary evidence
GPR-coastal dunes groundwater salt-water intrusion littoral evolution
2015/9/28
The internal structures of some surviving sand dunes and the ancient shore-lines along the coast south of Venice have been investigated integrating Ground Probing Radar (GPR) profiles, Vertical Electr...
基于GPR的机场跑道中钢筋回波检测与抑制
Hyp-curvelet变换 双曲线Radon变换 钢筋回波抑制 目标检测
2013/8/18
钢筋强反射回波及其多次波严重影响探地雷达在机场跑道灾害目标检测与识别的应用。本文研究机场跑道钢筋回波检测及抑制的方法。首先利用Hyp-curvelet变换将GPR时空二维回波信号投影到尺度空间，目标回波的能量将聚集且与其他目标分离，进而基于尺度空间中的局部峰值进行目标检测。然后结合目标回波的初始相位及时频特征，在尺度空间中消除钢筋回波分量。最后将数据反变换回时空域，得到只含有灾害目标回波的数据。仿...
基于压缩感知的GPR成像算法
探地雷达成像 压缩感知 Nyquist采样定理 反向投影算法
2013/8/19
传统的探地雷达(ground penetrating radar, GPR)数据采集需要满足Nyquist采样定理,严重影响了GPR成像效率。基于压缩感知理论,稀疏信号可以在远低于Nyquist采样率的情况下通过求解l1范数约束下的凸最优化问题得到精确恢复,克服了传统算法中数据采集的局限。将压缩感知理论应用于GPR成像,利用仿真数据系统分析了测量矩阵维度、信噪比、数据损失程度和目标密集度等因素对成...