Title :
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
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;
Conference_Titel :
Microwave Conference, 2009 German
Conference_Location :
Munich
Print_ISBN :
978-3-9812668-0-1
Electronic_ISBN :
978-3-8007-3150-3
DOI :
10.1109/GEMIC.2009.4815908
