1. Behari, J., Microwave Dielectric Behavior of Wet Soils, Vol. 8, Springer, 2005.
doi:10.1016/0022-1694(95)02970-2
2. Njoku, E. G. and D. Entekhabi, "Passive microwave remote sensing of soil moisture," Journal of Hydrology, Vol. 184, 101-129, 1996.
doi:10.1109/TGRS.1982.350412
3. Njoku, E. G. and P. E. O'Neill, "Multifrequency microwave radiometer measurements of soil moisture," IEEE Transactions on Geoscience and Remote Sensing, Vol. GE-20, No. 4, 468-475, 1982.
doi:10.1109/TGRS.1982.350412
4. Daniels, D. J., Ground Pentrating Radar, 2nd Ed., IEE Radar, Sonar and Navigation, Series, 2004.
doi:10.1016/S0022-1694(96)03244-1
5. Van Overmeeran, R. A., J. C. Gehrels, and S. V. Sariowa, "Ground penetrating radar for determining volumetric soil water content: Results of comparative measurements at two test sites," J. Hydrol., Vol. 197, 316-338, 1997.
doi:10.1029/WR016i003p00574
6. Topp, G. C., J. L. Davis, and A. P. Annan, "Electromagnetic determination of soil water content: Measurements in coaxial transmission lines," Water Resources Research, Vol. 16, No. 3, 574-582, 1980.
doi:10.1109/36.387598
7. Peplinski, N. R., F. T. Ulaby, and M. C. Dobson, "Dielectric properties of soils in the 0.3--1.3 GHz range," IEEE Transactions on Geoscience and Remote Sensing, Vol. 33, No. 3, 803-807, 1995.
doi:10.1109/TGRS.1980.350304
8. Wang, J. R. and T. J. Schmugge, "An empirical model for the complex permittivity of soil as a function of water content," IEEE Transactions on Geoscience and Remote Sensing, Vol. GE-18, 288-295, 1980.
doi:10.1109/36.582002
9. Sabburg, J., J. A. R. Ball, and N. H. Hancock, "Dielectric behavior of moist swelling clay soils at microwave frequencies," IEEE Transactions on Geoscience and Remote Sensing, Vol. 35, No. 3, 784-787, 1997.
doi:10.1029/98WR02038
10. Sakaki, T., K. Sugihara, T. Adachi, K. Nishida, and W. Lin, "Application of time domain reflectometry to determinations of volumetric water content in rock," Water Resources Research, Vol. 34, No. 10, 2631-2632, 1998.
doi:10.1029/2001WR000923
11. West, L. J., K. Handley, Y. Huang, and M. Pokar, "Radar frequency dispersion in sandstone: Implication for determination of moisture and clay content," Water Resources Research, Vol. 39, 1026, 2003.
doi:10.1080/02626660109492834
12. Persson, R., M. Berndtsson, and B. Sivakumar, "Using neural networks for calibration of time domain reflectometry measurements," Hydrological Sciences Journal, Vol. 46, No. 3, 389-398, 2001.
doi:10.1080/02626660109492834
13. Ba, D. and P. Sabouroux, "EpsiMu a tool for permittivity and permeability measurement in microwave domain at real time of all materials, application to solid and semi-solid materials," Microwave and Optical Technology Letters, Vol. 52, No. 12, 2643-2648, 2010.
doi:10.1111/j.1365-2389.1996.tb01410.x
14. Perdok, U. D., B. Kroesbergen, and M. A. Hilhorst, "Influence of gravimetric water content and bulk density on the dielectric properties of soil," European Journal of Soil Science, Vol. 47, 367-371, 1996.
doi:10.1111/j.1365-2389.1996.tb01410.x
15. Guéguen, Y. and V. Palciauskas, Introduction to the Physics of Rocks, Princeton University Press, 1994.
doi:10.1088/0022-3727/31/13/013
16. Zakri, T., J. P. Laurent, and M. Vauclin, "Theoritical evidence for `Lichtenecker's mixture formulae,' based on effective medium theory ," Journal of Physics D: Applied Physics, Vol. 31, 1589-1594, 1998.
doi:10.1111/j.1365-2478.2008.00724.x
17. Brovelli, A. and G. Cassiani, "Effective permittivity of porous media: A critical analysis of the complex refractive index model," Geophysical Prospecting, Vol. 56, 715-727, 2008.
doi:10.1109/PROC.1974.9388
18. Birchak, J. R., C. G. Gardner, J. E. Hipp, and J. M. Victor, "High dielectric constant microwave probes for sensing soil moisture," Proceeding of the IEEE, Vol. 62, 93-98, 1974.
doi:10.1109/PROC.1974.9388
19. Roth, K., R. Schulin, H. Fluher, and W. Attinger, "Calibration of time-domain reflectometry for water content measurement using a composite dielectric approach," Water Resources Research, Vol. 26, No. 10, 2267-2273, 1990.
20. HalliKainen, M. T., F. T. Ulaby, M. C. Dobson, M. A. ElRayes, and L. Wu, "Microwave dielectric behaviour of wet soil Part 1: Empirical models and experimental observations," IEEE Transactions on Geoscience and Remote Sensing, Vol. 55, No. 1, 218-222, 1985.
21. Agilent, , Agilent de-embedding and embedding S-parameter networks using a vector network analyzer, Technical Report, Agilent Technologies, 2000.
22. Nicolson, A. M. and G. F. Ross, "Measurement of the intrinsic materials by time domain techniques," IEEE Transactions on Microwave Theory and Techniques, Vol. 19, No. 4, 377-382, 1970.
doi:10.1109/PROC.1974.9382
23. Weir, W. B., "Automatic measurement of complex dielectric constant and permeability at microwave frequencies," Proceeding of the IEEE, Vol. 62, No. 1, 33-36, 1974.
doi:10.1109/22.57336
24. Baker-Jarvis, J., E. J. Vanzura, and W. A. Kissick, "Improved technique for determining complex permittivity with the transmission/reflection method ," IEEE Transactions on Microwave Theory and Techniques, Vol. 38, No. 8, 1096-1103, 1990.
doi:10.1109/TMTT.2003.810139
25. Williams, T. C., M. A. Stuchly, and P. Saville, "Modified transmission-reflection method for measuring constitutive parameters of thin flexible high-loss materials," IEEE Transactions on Microwave Theory and Techniques, Vol. 51, No. 5, 1560-1566, 2003.
doi:10.1109/19.744310
26. Trabelsi, S., A. Krazewski, and S. O. Nelson, "New density-independent calibration function for microwave sensing of moisture content in particulate materials," IEEE Transactions on Instrumentation and Measurement, Vol. 47, 613-622, 1998.
doi:10.1109/19.744310
27. Nelson, S. O., "Density-permittivity relationships for powdered and granular materials," IEEE Transactions on Instrumentation and Measurement, 2005.
28. Kupfer, K., Electromagnetic Aquametry, Springer, 2004.
doi:10.1016/S0926-9851(98)00017-2
29. Sarrenketo, T., "Electrical properties of water in clay and silty soils," Journal of Applied Geophysics, Vol. 40, 73-88, 1998.
doi:10.1109/36.142943
30. Scott, W. R. and G. S. Smith, "Measured electrical constituve parameters of soil as functions of frequency and moisture content," IEEE Transactions on Geoscience and Remote Sensing, Vol. 30, No. 3, 621-623, 1992.
doi:10.1109/36.142943