1. Peters, L. P., J. Daniels, and J. J. Young, "Ground penetrating radar as a subsurface environmental sensing tool," IEEE Proc., Vol. 82, 1802-1822, 1994.
doi:10.1109/5.338072
2. Groenenboom, J. and A. Yarovoy, "Data processing and imaging in GPR system dedicated for landmine detection," Subsurface Sensing Technologies and Appl., Vol. 3, No. 4, 387-402, 2002.
doi:10.1023/A:1020321632316
3. Danielsa, J. J., R. Robertsa, and M. Vendlb, "Ground penetrating radar for the detection of liquid contaminants," Appl. Geophys., Vol. 33, 195-207, 1995.
doi:10.1023/A:1010195608675
4. Fiorani, L., M. Bortone, S. Mattei, C. Ruocchio, S. Vetrella, and A. Salom, "Geoscope and Geolidar: Integrated instruments for underground archaeological investigations," Subsurface Sensing Technologies and Appl., Vol. 1, No. 3, 305-319, 2000.
doi:10.1049/ip-rsn:20040973
5. Gu, K., G. Wang, and J. Li, "Migration based SAR imaging for ground penetrating radar systems," IEE Proc. Radar, Sonar, Navigation, Vol. 151, 317-325, 2004.
doi:10.1049/ip-rsn:20040973
6. Song, J., Q. H. Liu, K. Kim, W. R. Scott, and , "High-resolution 3-D radar imaing through nonuniform fast Fourier transform (NUFFT) ," Commu. in Computat. Phys., Vol. 1, No. 1, 176-191, 2006.
7. Song, J., Q. H. Liu, P. Torrione, and L. Collins, "Two-dimensional and three-dimensional NUFFT migration method for landmine detection using ground-penetrating radar ," IEEE Trans. Geosci. Remote Sensing, Vol. 44, 1462-1469, 2006.
doi:10.1109/TGRS.2006.870412
8. Cafforio, C., C. Prati, and F. Rocca, "SAR data focusing using seismic migration techniques," IEEE Trans. on Aerospace and Electronic Systems, Vol. 27, 194-207, 1991.
doi:10.1190/1.1440826
9. Stolt, R. H., "Migration by Fourier transform," Geophys., Vol. 43, No. 1, 23-48, 1978.
doi:10.1190/1.1440826
10. Li, A., "Algoritthms for the implementation of Stolt interpolation in SAR processing," Intl. Conf. Geosci. Remote Sensing Symp., 360-362, 1992.
doi:10.1109/75.650975
11. Liu, Q. H. and N. Nguyen, "An accurate algorithm for nonuniform fast Fourier transform (NUFFT's)," IEEE Trans. Microwave and Guided Wave Lett., Vol. 8, No. 1, 18-20, 1998.
doi:10.1109/75.650975
12. Nguyen, N. and Q. H. Liu, "The regular Fourier matrics and nonuniform fast Fourier transforms," SIAM J. Sci. Comput., Vol. 21, No. 1, 283-293, 1999.
doi:10.1137/S1064827597325712
13. Liu, Y.-H. and Q. H. Liu, "A new efficient FDTD time-to-frequency-domian conversion algorithm," Progress In Electromagnetic Research, Vol. 92, 33-46, 2009.
doi:10.2528/PIER09030906
14. Wang, Y., "Seismic time-frequency spectral decomposition by matching pursuit ," Geophys., Vol. 72, No. 1, 13-20, 2007.
doi:10.1190/1.2387109
15. Chakraborty, A. and D. Okaya, "Frequency-time decomposition of seismic data using wavelet-based methods," Geophys., Vol. 60, No. 6, 1906-1916, 1995.
doi:10.1190/1.1443922
16. Liu, J. and K. J. Marfurt, "Instantaneous spectral attributes to detect channels," Geophys., Vol. 72, No. 2, 23-31, 2007.
doi:10.1190/1.2428268
17. Bradford, J. H. and Y. Wu, "Instantaneous spectral analysis: Time-frequency mapping via wavelet matching with application to contaminated-site characterization by 3D GPR," Leading Edge, Vol. 26, No. 8, 1018-1023, 2007.
doi:10.1190/1.2769559