Title :
Frequency-swept microwave imaging of a lossy dielectric cylinder in a lossy medium
Author :
Kim, Jung-Hye ; Ra, Jung-Woong
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
Multi-frequency Born inversion of the dielectric object is modified to include the lossy dielectric in the slightly lossy background medium. A typical numerical example of a circular lossy dielectric cylinder is presented with its range of validity. By using the improved Born inversion, the permittivity contrast of 1 to 6 may be reconstructed but the range of conductivity is rather limited
Keywords :
FM radar; chirp modulation; geophysical techniques; microwave imaging; radar applications; radar imaging; remote sensing by radar; terrestrial electricity; Born inversion; background medium; buried object detection; circular lossy dielectric cylinder; dielectric object; frequency sweeping; frequency-swept radar; geology; geophysical measurement technique; ground penetrating radar; lossy dielectric; lossy dielectric cylinder; lossy medium; microwave imaging; multifrequency Born inversion; numerical model; permittivity contrast; radar remote sensing; Conductivity; Dielectric losses; Fourier transforms; Frequency; Image reconstruction; Integral equations; Microwave imaging; Permittivity; Scattering; Tomography;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.519636
