MIChAEL: A MICROWAVE IMAGING SET-UP FORTHE ACQUISITION OF THE 3D POLARIMETRICIMAGE OF AUTOMOTIVE OBSTACLES

摘要

For the realisation of an on-board anti-collision system able to work in any weather condition,a microwave imaging radar is necessary. It must acquire the 3-D radar image of the wholescenario in front of the car with ultra high resolution in order to recognise the obstacles andpredict their trajectories. These targets can be achieved if the image characterisation of theobstacles is carried out and a data-base of their signatures is realised.With this aim we have developed an imaging laboratory set-up able to acquire the 3D fullpolarimetric microwave image of the automotive obstacles with high resolution.Furthermore, the proposed system permits to evaluate the imaging performances of completelyfilled array as well as sparse array systems.In this paper the laboratory set-up will be described and some preliminary results presented.