15 October 1999 C-band tomography system for imaging of cylindrical objects
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Abstract
Tomographic methods of image reconstruction of two-dimensional cross-sections of cylindric objects are used. A microwave tomography system was created for imaging dielectrical cylindrical objects. It is shown that the image of object illuminated by an electromagnetic signal in the frequency band under consideration (f approximately equals 7.5 GHz) may be obtained by using first-order diffraction tomography method through Born approximation for the scattered field. The imaging system involves scanner with a rotating platform. In the test runs, a cylindrical object placed between the transmitter and the receiver antennas is scanned and rotated. Data processing is controlled by a computer system. Real and imaginary parts of scatted field are obtained by using vector network analyzer. Special software carries out image processing. Dielectric permittivity (epsilon) of the objects under investigation lies in the interval 1.1 less than (epsilon) less than 2. The surrounding media is air. It is shown that if (epsilon) satisfies the above condition and object size is some few wavelength (lambda) 0 ((lambda) 0 approximately equals 0.04 m), imaging process creates satisfactory results.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexey A. Vertiy, Alexey A. Vertiy, Sergiy P. Gavrilov, Sergiy P. Gavrilov, Tuelay Adiguzel, Tuelay Adiguzel, Igor Voynovskyy, Igor Voynovskyy, G. Yuceer, G. Yuceer, Alp Oral Salman, Alp Oral Salman, } "C-band tomography system for imaging of cylindrical objects", Proc. SPIE 3752, Subsurface Sensors and Applications, (15 October 1999); doi: 10.1117/12.365702; https://doi.org/10.1117/12.365702
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