W-band radiometric imager with mechanical beam-scanning

Author

Nova, E. ; Abril, J. ; Romeu, J. ; Broquetas, A. ; Torres, F. ; Jofre, L.

Author_Institution

Dept. Signal Theor. & Commun., Univ. Politec. de Catalunya (UPC), Barcelona, Spain

fYear

2011

fDate

2-7 Oct. 2011

Firstpage

1

Lastpage

2

Abstract

The design of a 94 GHz Total Power Radiometer system for imaging purposes is presented in this paper. A mechanical beam-scanning antenna system is used to acquire passive raster images. The main performance parameters of the imaging system are described as well as their impact on the resulting image quality. A temperature resolution below IK and a spatial resolution around 4 cm at 1 meter standoff distance are obtained with this system. Moreover, radiometric images acquired in indoor and outdoor environments are shown and compared.

Keywords

image resolution; image sensors; millimetre wave imaging; radiometers; W-band radiometric imaging; frequency 94 GHz; image quality; mechanical beam-scanning antenna system; passive raster imaging; spatial resolution; temperature resolution; total power radiometer system; Antennas; Brightness temperature; Imaging; Radiometry; Sensitivity; Spatial resolution; Temperature distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on

Conference_Location

Houston, TX

ISSN

2162-2027

Print_ISBN

978-1-4577-0510-6

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/irmmw-THz.2011.6105156

Filename

6105156