Clutter Reduction Based on Apex Shifted Radon Transform in Sub-surface Forward-Looking Ground Penetrating Radar

In this paper a method is proposed to reduce none-apex hyperbola clutter due to target being located at the outside of imaging region and the inside of electromagnetic wave field in forward-looking ground penetrating radar (FLGPR) measurements. This clutter reduction method is based on apex shifted Radon transform which maps the none-apex hyperbola clutter in radargram to an energy congregate region in the tau-q domain. The none-apex hyperbola clutter is estimated by using a q band-pass filter and the inverse transform. Then the estimated clutter is removed by subtraction method. Finally, remainder surface clutter is reduced by scale and shift. The effectiveness of the approach is demonstrated with an experimental data set, and it increases the signal-to-clutter ratio of near-surface target

[1]  Jian Li,et al.  Adaptive ground bounce removal , 2002, SPIE Defense + Commercial Sensing.

[2]  Dragana Carevic.  Clutter Reduction and Detection of Minelike Objects in Ground Penetrating Radar Data Using Wavelets , 2000 .

[3]  David J. Daniels,et al.  Surface-Penetrating Radar , 1996 .

[4]  Hao Ling,et al.  Clutter reduction for synthetic aperture radar images using adaptive wavelet packet transform , 1999 .

[5]  Håkan Brunzell,et al.  Detection of shallowly buried objects using impulse radar , 1999, IEEE Trans. Geosci. Remote. Sens..

[6]  Paul D. Gader,et al.  Feature analysis for forward-looking landmine detection using GPR , 2005, SPIE Defense + Commercial Sensing.

[7]  Inder J. Gupta,et al.  A novel signal processing technique for clutter reduction in GPR measurements of small, shallow land mines , 2000, IEEE Trans. Geosci. Remote. Sens..

[8]  Ping Chen,et al.  Training DHMMs of mine and clutter to minimize landmine detection errors , 2003, IEEE Trans. Geosci. Remote. Sens..

[9]  D. J. Verschuur,et al.  3D Surface-Related Multiple Prediction, an inversion approach , 2000 .

[10]  H.B.D. Sorensen,et al.  Comparison of PCA and ICA based clutter reduction in GPR systems for anti-personal landmine detection , 2001, Proceedings of the 11th IEEE Signal Processing Workshop on Statistical Signal Processing (Cat. No.01TH8563).

[11]  Avinash Gandhe,et al.  Real-time adaptable subspace method for automatic mine detection , 2002, SPIE Defense + Commercial Sensing.

[12]  Erik G. Larsson,et al.  Adaptive ground bounce removal , 2001 .