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THz 3-D Image Formation Using SAR Techniques: Simulation, Processing and Experimental Results

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4 Author(s)
Jinshan Ding ; Center for Sensorsystems (ZESS), Univ. Siegen, Siegen, Germany ; Kahl, M. ; Loffeld, O. ; Bolivar, P.H.

An active frequency-modulated continuous wave (FMCW) terahertz (THz) system has been developed to image objects in millimeter-scale resolution in three dimensions. The two-dimensional (2-D) aperture synthesis enables the improvement of cross range resolution, and its high range resolution is achieved through the use of the broadband sweep signal, whose frequency ranges from 514 to 565 GHz. The 3-D data are sufficiently focused by the wavenumber domain approach derived for the dechirped data. We present the THz 3-D imaging strategy using synthetic aperture radar (SAR) techniques, the related theoretical background and the experimental results in this paper.

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Terahertz Science and Technology, IEEE Transactions on  (Volume:3 ,  Issue: 5 )