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A 100 GHz FMCW MIMO radar system for 3D image reconstruction

: Bleh, D.; Rösch, M.; Kuri, M.; Dyck, A.; Tessmann, A.; Leuther, A.; Wagner, S.; Ambacher, O.

European Microwave Association:
13th European Radar Conference, EuRAD 2016. Proceedings : 05 - 07 October 2016, London, UK, European Microwave Week (EuMW) 2016
London: Horizon House, 2016
ISBN: 978-2-87487-045-3
European Radar Conference (EuRAD) <13, 2016, London>
European Microwave Week (EuMW) <19, 2016, London>
Conference Paper
Fraunhofer IAF ()
MIMO; FMCW radar; array processing; radar system; millimeter wave imaging; W-band radar

We present a frequency modulated continuous wave (FMCW) multiple input multiple output (MIMO) radar demonstrator system operating in the W-band at frequencies around 100 GHz. It consists of a two dimensional sparse array together with hardware for signal generation and image reconstruction that we will describe in more detail. The geometry of the sparse array was designed with the help of simulations to the aim of imaging at distances of just a few up to more than 150 meters. The FMCW principle is used to extract range information. To obtain information in both cross-range directions a back-propagation algorithm is used and further explained in this paper. Finally, we will present first measurements and explain the calibration process.