Multistatic mm-Wave Imaging with Planar 2D-Arrays

Author

Ahmed, Sherif Sayed ; Schiessl, Andreas ; Schmidt, Lorenz-Peter

Author_Institution

Dept. of Microwave Eng. & High Freq. Technol. (LHFT), Univ. of Erlangen-Nuremberg, Erlangen

fYear

2009

fDate

16-18 March 2009

Firstpage

1

Lastpage

4

Abstract

This work reports measurement results for the scanning of 2D and 3D objects in W-band (75 to 110 GHz) using active 2D planar arrays in multistatic configuration with digital beamforming technique. The image quality of the object reflectivity depends mainly on the frequency band, array configuration, signal polarization, and focusing method. Multistatic measurements allow for higher dynamic range, reduced antennas count and the feasibility for cross-polarization measurements. Measurements meet the theoretical expectation and the simulation results down to 4 mm resolution. Two multistatic arrays will be presented and compared in terms of image resolution, antennas count, SNR and digital processing needed.

Keywords

image reconstruction; image resolution; millimetre wave imaging; planar antenna arrays; 2D objects; 3D objects; SNR; active 2D planar arrays; antennas count; array configuration; cross-polarization measurements; digital beamforming technique; digital processing; focusing method; frequency 75 GHz to 110 GHz; image quality; image resolution; multistatic measurements; multistatic mm-wave imaging; object reflectivity; signal polarization; Antenna measurements; Array signal processing; Dynamic range; Focusing; Frequency; Image quality; Planar arrays; Polarization; Reflectivity; Signal resolution; back-propagation; digital beamforming; imaging; mm-wave; point spread function; signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009 German

Conference_Location

Munich

Print_ISBN

978-3-9812668-0-1

Electronic_ISBN

978-3-8007-3150-3

Type

conf

DOI

10.1109/GEMIC.2009.4815908

Filename

4815908