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2012-08-30
An Adaptive Method to Focusing in an Unknown Scenario
By
Progress In Electromagnetics Research, Vol. 130, 563-579, 2012
Abstract
The problem of field focusing radiated onto a target location in an unknown scenario is considered. In particular, we devise an adaptive procedure in which first an image of the unknown region where the target point is located is formed via LSM. Then, the LSM result is used also to define the excitations coefficients for the array elements needed to focus the field. This novel approach to focusing is described and tested with numerical examples.
Citation
Lorenzo Crocco, Loreto Di Donato, Domenica A. M. Iero, and Tommaso Isernia, "An Adaptive Method to Focusing in an Unknown Scenario," Progress In Electromagnetics Research, Vol. 130, 563-579, 2012.
doi:10.2528/PIER12050107
References

1. Montaldo, G., M. Tanter, and M. Fink, "Time reversal of speckle noise," Physical Review Letters, Vol. 106, No. 5, 054301, 2011.
doi:10.1103/PhysRevLett.106.054301

2. Nabulsia, K. and J. R. Waitb, "Focusing into a lossy medium from an annular slot array," Journal of Electromagnetic Waves and Applications, Vol. 7, No. 3, 345-353, 1993.
doi:10.1163/156939393X00697

3. Trujillo-Romero, C. J., S. Garcia-Jimeno, A. Vera, L. Leija, and J. Estelrich, "Using nanoparticles for enhancing the focusing heating e®ect of an external waveguide applicator for oncology hyperthermia: Evaluation in muscle and tumor phantoms," Progress In Electromagnetics Research, Vol. 121, 343-363, 2011.
doi:10.2528/PIER11092911

4. Xiao, S., J. Chen, X. Liu, and B.-Z. Wang, "Spatial focusing characteristics of time reversal UWB pulse transmission with different antenna arrays," Progress In Electromagnetics Research B, Vol. 2, 223-232, 2008.
doi:10.2528/PIERB07112203

5. Gupta, R. C. and S. P. Singh, "Elliptically bent slotted waveguide conformal focused array for hyperthermia treatment of tumors in curved region of human body," Progress In Electromagnetics Research, Vol. 62, 107-125, 2006.
doi:10.2528/PIER06012801

6. Isernia, T. and G. Panariello, "Optimal focusing of scalar fields subject to arbitrary upper bounds," Electronics Letters, Vol. 34, 162-164, 1998.
doi:10.1049/el:19980212

7. Iero, D., T. Isernia, A. F. Morabito, I. Catapano, and L. Crocco, "Optimal constrained field focusing for hyperthermia cancer therapy: A feasibility assessment on realistic phantoms," Progress In Electromagnetics Research, Vol. 102, 125-141, 2010.
doi:10.2528/PIER10011207

8. Attardo, E. A., T. Isernia, and G. Vecchi, "Field synthesis in inhomogeneous media: Joint control of polarization, uniformity and SAR in MRI B1-field," Progress In Electromagnetics Research, Vol. 118, 355-377, 2011.
doi:10.2528/PIER11051910

9. Haddadin, O. S. and E. S. Ebbini, "Ultrasonic focusing through inhomogeneous media by application of the inverse scattering problem," J. Acoust. Soc. Am., Vol. 104, No. 1, 313-325, 1998.
doi:10.1121/1.423291

10. Colton, D. and R. Kress, Inverse Acoustic and ElectromagneticScattering Theory, Springer-Verlag, Berlin, Germany, 1992.

11. De Rosny, J., G. Lerosey, and M. Fink, "Theory of electromagnetic time-reversal mirrors," IEEE Trans. Antennas Propag., Vol. 58, No. 10, 3139-3149, 2010.
doi:10.1109/TAP.2010.2052567

12. Colton, D., H. Haddar, and M. Piana, "The linear sampling method in inverse electromagnetic scattering theory," Inverse Probl., Vol. 19, 105-137, 2003.
doi:10.1088/0266-5611/19/6/057

13. Cakoni, F. and D. Colton, "Qualitative Methods in Inverse Scattering Theory," Springer-Verlag, Berlin, Germany, 2006.

14. Catapano, I., L. Crocco, and T. Isernia, "On simple methods for shape reconstruction of unknown scatterers," IEEE Trans. Antennas Propag., Vol. 55, 1431-1436, 2007.
doi:10.1109/TAP.2007.895563

15. Catapano, I. and L. Crocco, "An imaging method for concealed targets," IEEE Trans. Geosci. Remote Sens., Vol. 47, 1301-1309, 2009.
doi:10.1109/TGRS.2008.2010773

16. Crocco, L., I. Catapano, L. Di Donato, and T. Isernia, "The linear sampling method as a way to quantitative inverse scattering," IEEE Trans. Antennas Propag., Vol. 60, 1844-1854, 2012.
doi:10.1109/TAP.2012.2186250

17. Collin, R. E., Antennas and Radiowave Propagation, Electrical Engineering Series, McGraw-Hill International, New York, 1985.

18. Marengo, E. A. and R. W. Ziolkowski, "Nonradiating and minimum energy sources and their fields: Generalized source inversion theory and applications ," IEEE Trans. Antennas Propag., Vol. 48, No. 6, 1553-1562, 2000.
doi:10.1109/8.899672

19. Bertero, M. and P. Boccacci, Introduction to Inverse Problems in Imaging, Institute of Physics, Bristol, UK, 1998.

20. Bucci, O. M. and T. Isernia, "Electromagnetic inverse scattering: Retrievable information and measurement strategies," Radio Sci., Vol. 32, 2123-2138, 1997.
doi:10.1029/97RS01826

21. Bucci, O. M., C. Gennarelli, and C. Savarese, "Representation of electromagnetic fields over arbitrary surfaces by a finite and non-redundant number of samples," IEEE Trans. Antennas Propag., Vol. 46, 351-359, 1998.
doi:10.1109/8.662654

22. Devaney, A. J., "A filtered backpropagation algorithm for diffraction tomography," Ultrason. Imag., Vol. 4, No. 4, 336-350, 1982.
doi:10.1016/0161-7346(82)90017-7