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2013-10-22

Near Field Image Reconstruction Algorithm for Passive Millimeter-Wave Imager Bhu-2D-U

By Xianxun Yao, Cheng Zheng, Jin Zhang, Baohua Yang, Anyong Hu, and Jungang Miao
Progress In Electromagnetics Research C, Vol. 45, 57-72, 2013
doi:10.2528/PIERC13092201

Abstract

A passive millimeter-wave imager BHU-2D-U based on synthetic aperture interferometric radiometer (SAIR) technique has been developed by Beihang University. The imager is designed for detecting concealed weapons on human body and operated under the near-field condition of the antenna array, thus the conventional Fourier imaging theory does not apply. In this paper, an accurate numerical image reconstruction algorithm using regularization theory is proposed. By means of adding a prior information of desired brightness temperature image, the influences of measurement noise and focusing error on the reconstructed image have been reduced. Numerical simulations and experiments on BHU-2D-U have been performed to verify the superiorities of the proposed algorithm over the corrected Fourier method and the Moore-Penrose pseudo inverse method. The results demonstrate that the proposed method is an advantageous imaging algorithm for near-field millimeter-wave SAIR.

Citation


Xianxun Yao, Cheng Zheng, Jin Zhang, Baohua Yang, Anyong Hu, and Jungang Miao, "Near Field Image Reconstruction Algorithm for Passive Millimeter-Wave Imager Bhu-2D-U," Progress In Electromagnetics Research C, Vol. 45, 57-72, 2013.
doi:10.2528/PIERC13092201
http://jpier.org/PIERC/pier.php?paper=13092201

References


    1. Wikner, D. A., "Progress in millimeter-wave imaging," Proc. SPIE, Vol. 7936, 79360D, 2011.
    doi:10.1117/12.880188

    2. Kolinko, V. G., S. Lin, A. Shek, W. Manning, C. Martin, M. Hall, O. Kirsten, J. Moore, and D. A. Wikner, "A passive millimeterwave imaging system for concealed weapons and explosives detection," Proc. SPIE, Vol. 5781, 85-92, 2005.
    doi:10.1117/12.606661

    3. Lovberg, J. A., C. Martin, and V. G. Kolinko, "Video-rate passive millimeter-wave imaging using phased arrays," Proc. MWSYM, 1689-1692, 2007.

    4. Huang, J. and T. Gan, "A novel millimeter wave synthetic aperture radiometer passive imaging system," Proc. ICMMT, 414-417, 2004.

    5. Zheng, C., X. Yao, A. Hu, and J. Miao, "A passive millimeter wave imager used for concealed weapon detection," Progress In Electromagnetics Research B, Vol. 46, 379-397, 2013.

    6. Zheng, C., X. Yao, A. Hu, and J. Miao, "Initial results of a passive millimeter-wave imager used for concealed weapon detection BHU-2D-U," Progress In Electromagnetics Research C, Vol. 43, 151-163, 2013.

    7. Laursen, B. and N. Skou, "Synthetic aperture radiometry evaluated by a two-channel demonstration model," IEEE Trans. Geosci. Remote Sens., Vol. 36, No. 3, 822-832, 1998.
    doi:10.1109/36.673675

    8. Duff, N., I. Corbella, and F. Torres, "Advantages and drawbacks of near field characterization of large aperture synthesis radiometers," Proc IEEE Microrad, 2004.

    9. Tanner, A. B., B. H. Lambrigsten, T. M. Gaier, and F. Torres, "Near field characterization of the GeoSTAR demonstrator," Proc. IGARSS, 2529-2532, 2006.

    10. Tanner, A. B. and C. T. Swift, "Calibration of a synthetic aperture radiometer," IEEE Trans. Geosci. Remote Sens., Vol. 31, 257-267, 1993.
    doi:10.1109/36.210465

    11. Zhang, C., J. Wu, H. Liu, and J. Yan, "Imaging algorithm for synthetic aperture interferometric radiometer in near ¯fild," Science China Technological Sciences, Vol. 54, 2224-2231, 2011.
    doi:10.1007/s11431-011-4403-3

    12. Anterrieu, E., "A resolving matrix approach for synthetic aperture imaging radiometers," IEEE Trans. Geosci. Remote Sens., Vol. 42, No. 8, 1649-1656, 2004.
    doi:10.1109/TGRS.2004.830940

    13. Bertero, M. and P. Boccacci, Introduction to Inverse Problems in Imaging, Instit. Phys., London, UK, 1998.
    doi:10.1887/0750304359

    14. Peichel, M., H. Suess, and M. Suess, "Microwave imaging of the brightness temperature distribution of extended areas in the near and far ¯eld using two-dimensional aperture synthesis with high spatial resolution," Radio Science, Vol. 33, No. 3, 781-801, 1998.
    doi:10.1029/97RS02398

    15. Tikhonov, A. and V. Y. Arseninn, Solution of Ill-posed Problems, John Wiley & Sons, New York, 1977.

    16. Golub, G. H., M. Heath, and G. Wahba, "Generalized cross validation as a method for choosing a good ridge parameter," Technometrics, Vol. 21, 215-223, 1979.
    doi:10.1080/00401706.1979.10489751

    17. Ruf, C. S., C. T. Swift, A. B. Tanner, and D. M. Le Vine, "Interferometric synthetic aperture microwave radiometry for the remote sensing of the earth," IEEE Trans. Geosci. Remote Sens., Vol. 26, 597-611, 1988.
    doi:10.1109/36.7685

    18. Hansen, C., "The discrete Picard condition for discrete ill-posed problems," BIT Numerical Mathematics, Vol. 30, No. 4, 658-672, 1990.
    doi:10.1007/BF01933214