Short- and long-range passive imaging in millimeter-wave-band

Author

Vertiy, A. ; Ozbek, S. ; Pavlyuchenko, A. ; Tekbas, M. ; Kizilhan, A. ; Cetinkaya, H. ; Unal, A. ; Panin, S.B.

Author_Institution

Int. Lab. for High Technol., TUBITAK-MRC, Gebze-Kocaeli, Turkey

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

The millimeter-wave passive radiometric imaging systems based on the single channel design are developed. The systems are intended for disclosure of dangerous objects concealed under persons´ clothing in short distances and for passive visualization of remote targets. The low-noise compact receiver (noise factor 4.5dB for 90-100GHz) involving four stages was designed. Antenna systems based on aspheric lens and on parabolic reflector were adopted. The radiometric imaging peculiarities of the building materials were investigated. The systems successfully recognize the metallic weapon hidden under outer clothing at a distance about 10m and visualize remote targets at a distance of 170m.

Keywords

lenses; millimetre wave receivers; reflector antenna feeds; antenna system; aspheric lens; distance 170 m; frequency 90 GHz to 100 GHz; long-range passive imaging; low-noise compact receiver; metallic weapon; millimeter wave band; millimeter wave passive radiometric imaging system; noise figure 4.5 dB; parabolic reflector; passive visualization; radiometric imaging peculiarity; remote target; short-range passive imaging; single channel design; Antenna measurements; Imaging; Lenses; Microwave radiometry; Noise; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050452

Filename

6050452