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Progress In Electromagnetics Research
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A NEAR-FIELD 3D CIRCULAR SAR IMAGING TECHNIQUE BASED ON SPHERICAL WAVE DECOMPOSITION

By B. Zhang, Y. Pi, and R. Min

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Abstract:
A near-field three dimensional imaging algorithm for circular SAR is proposed in this paper. It adopts the theory of spherical wave decomposition to transform Green function to a superposition of plane wave components. Using this relation, the image-reconstruction can be implemented in frequency domain instead of in spatial domain, which simplifies the solving process of target reflectivity function, and allows for the target to be near to the radar. Through compensating phase factor and filtering at each elevation, we firstly get the ground CSAR signal of each elevation in frequency domain. Then, performing two dimensional inverse nonuniform fast Fourier transform and accumulating the results of all azimuth angles, the reconstructed two dimensional image corresponding to an elevation is achieved. Finally, using reconstructed image datum of all elevation, the three dimensional image of target is obtained. To demonstrate the imaging performance of our method, numerical simulations and experiments are conducted. By comparing the results with the focusing operator algorithm and the back-projection algorithm, it is found that the proposed algorithm is more efficient and can obtain a good imaging performance.

Citation:
B. Zhang, Y. Pi, and R. Min, "A Near-Field 3D Circular SAR Imaging Technique Based on Spherical Wave Decomposition," Progress In Electromagnetics Research, Vol. 141, 327-346, 2013.
doi:10.2528/PIER13052011
http://www.jpier.org/PIER/pier.php?paper=13052011

References:
1. Sheen, D. M., D. L. McMakin, and T. E. Hall, "Three-dimensional millimeter-wave imaging for concealed weapon detection," IEEE Trans. on Microwave Theory and Techniques, Vol. 49, No. 9, 1581-1592, Sep. 2001.
doi:10.1109/22.942570

2. Sheen, D. M., D. L. McMakin, and T. E. Hall, "Near-field three-dimensional radar imaging techniques and applications," Applied Optics, Vol. 49, No. 19, E83-E93, 2010.
doi:10.1364/AO.49.000E83

3. Oka, S., H. Togo, N. Kukutsu, and T. Nagatsuma, "Latest trends in millimeter-wave imaging technology," Progress In Electromagnetics Research Letters, Vol. 1, 197-204, 2008.
doi:10.2528/PIERL07120604

4. Demirci, S., H. Cetinkaya, E. Yigit, C. Ozdemir, and A. Vertiy, "A study on millimeter-wave imaging of concealed objected: Application using back-projection algorithm," Progress In Electromagnetics Research, Vol. 128, 457-477, 2012.

5. Manfred, H., B. Gunnar, and E. Helmut, "Millimetre wave near-field SAR scanner for concealed weapon detection," Proceedings of EUSAR 2008, 151-154, Friedrichshafen, Germany, 2008.

6. Harmer, S. W., S. E. Cole, N. J. Bowring, N. D. Rezgui, and D. Andrews, "On body concealed weapon detection using a phased antenna array," Progress In Electromagnetics Research, Vol. 124, 187-210, 2012.
doi:10.2528/PIER11112105

7. Grokhotkov, I. N. and A. Kuznetsov, "A concept of microwave system for the inspection of people and luggage," Proceedings of EUSAR 2008, 155-159, Friedrichshafen, Germany, 2008.

8. Bjarnason, J. E., T. L. Chan, A. W. Lee, M. A. Celis, and E. R. Brown, "Millimeter-wave, terahertz, and mid-infrared transmission through common clothing," Applied Physics Letters, Vol. 85, No. 4, 197-204, 2004.
doi:10.1063/1.1771814

9. Tonouchi, M., "Cutting-edge terahertz technology," Nature Photonics, Vol. 1, No. 2, 97-105, 2007.
doi:10.1038/nphoton.2007.3

10. Li, J. and Y. Pi, "Research on the 3D imaging algorithm of spin target based on the Hough transform," EURASIP Journal on Wireless Communications and Networking, Vol. 90, 2013, doi:10.1186/1687-1499-2013-90.

11. Nicholson, K. J. and C. H. Wang, "Improved near-field radar cross-section measurement technique," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 1103-1106, 2009.
doi:10.1109/LAWP.2009.2033951

12. Yan, W., J.-D. Xu, N.-J. Li, and W.-X. Tan, "A novel fast near-field electromagnetic imaging method for full rotation problem," Progress In Electromagnetics Research, Vol. 120, 387-401, 2011.

13. Li, C. and D. Y. Zhu, "A residue-pairing algorithm for InSAR phase unwrapping," Progress In Electromagnetics Research, Vol. 95, 341-354, 2009.
doi:10.2528/PIER09070706

14. Ren, X. Z., L. H. Qiao, and Y. Qin, "A three-dimensional imaging algorithm for tomography SAR based on improved interpolated array transform," Progress In Electromagnetics Research, Vol. 120, 181-193, 2011.

15. Xu, J., Y. Pi, and Z. Cao, "Bayesian compressive sensing in synthetic aperture radar imaging," IET Radar Sonar Navig., Vol. 6, No. 1, 2-8, 2012.
doi:10.1049/iet-rsn.2010.0375

16. Tan, W. X., W. Hong, Y. P. Wang, and Y. R. Wu, "A novel spherical-wave three-dimensional imaging algorithm for microwave cylindrical scanning geometries," Progress In Electromagnetics Research, Vol. 111, 43-70, 2011.
doi:10.2528/PIER10100307

17. Yu, L. and Y. Zhang, "A 3D target imaging algorithm based on two-pass circular SAR observations," Progress In Electromagnetics Research, Vol. 122, 341-360, 2012.
doi:10.2528/PIER11101901

18. Knaell, K. K. and G. P. Cardillo, "Radar tomography for the generation of three-dimensional images," IEE Proc. of Radar, Sonar, Navigation, Vol. 142, No. 2, 54-60, 1995.
doi:10.1049/ip-rsn:19951791

19. Broquetas, A., J. Palau, L. Jofre, and A. Cardama, "Spherical wave near-field imaging and radar cross-section measurement," IEEE Trans. Antennas Propag., Vol. 46, No. 5, 730-735, May 1998.
doi:10.1109/8.668918

20. Broquetas, A., L. Jofre, and A. Cardama, "A near-field spherical wave inverse synthetic aperture radar technique," IEEE AP-S Symp. Dig., Vol. 2, 1114-1117, Chicago, IL, 1992.

21. Soumekh, M., Synthetic Aperture Radar Signal Processing with MATLAB Algorithms, Wiley, New York, 1999.

22. Soumekh, M., "Reconnaissance with slant plane circular SAR imaging," IEEE Transactions on Image Processing, Vol. 5, No. 8, 1252-1265, 1996.
doi:10.1109/83.506760

23. Burki, J. and C. F. Barnes, "Slant plane CSAR processing using householder transform," IEEE Transactions on Image Processing, Vol. 17, No. 10, 1900-1907, 2008.
doi:10.1109/TIP.2008.2002161

24. Dallinger, A., S. Schelkshorn, and J. Detlefsen, "Efficient ω-k algorithm for circular SAR and cylindrical reconstruction areas," Advances in Radio Science,, Vol. 4, No. 10, 85-91, 2006.
doi:10.5194/ars-4-85-2006

25. Kou, L. L., X. Q. Wang, J. S. Chong, M. S. Xiang, and M. H. Zhu, "Circular SAR processing using an improved omega-k type algorithm," Journal of Systems Engineering and Electronics, Vol. 21, No. 4, 572-579, 2010.

26. Olivadese, D., E. Giusti, F. Berizzi, M. Martorella, and F. Lombardini, "Near field 3D circular SAR imaging," 3rd International Asia-Pacic Conference on Synthetic Aperture Radar (APSAR), 2011.

27. Balanis, C. A., Antenna Theory Analysis and Design, 3rd Edition, John Wiley and Sons, New York, USA, 2005.

28. Fessler, J. A. and B. P. Sutton, "Nonuniform fast fourier transforms using min-max interpolation," IEEE Transactions on Signal Processing, Vol. 51, No. 2, 560-574, 2003.
doi:10.1109/TSP.2002.807005

29. Ishimaru, A., T. K. Chan, and Y. Kuga, "An imaging technique using confocal circular synthetic aperture radar," IEEE Transactions on Geoscience and Remote Sensing, Vol. 36, No. 5, 1524-1530, 1998.
doi:10.1109/36.718856

30. Bryant, M. L., L. L. Gostin, and M. Soumekh, "3-D E-CSAR imaging of a T-72 tank and synthesis of its SAR reconstructions," IEEE Transactions on Aerospace and Electronic Systems, Vol. 39, No. 1, 211-227, 2003.
doi:10.1109/TAES.2003.1188905


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