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Real-time through-wall imaging using an ultrawideband multiple-input multiple-output (MIMO) phased array radar system

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3 Author(s)
Ralston, T.S. ; MIT Lincoln Lab., Lexington, MA, USA ; Charvat, G.L. ; Peabody, J.E.

A real-time acquisition and processing architecture has been developed for an ultrawideband (UWB) S-band (2-4 GHz) multiple-input multiple-output (MIMO) phased array radar system that facilitates greater than 10 Hz imaging rates, providing a video-like radar image of what is behind a concrete wall. Video rate imaging enhances the interpretability of range vs. range through-wall and free-space radar imagery. Images are formed without a-priori information. Video framerate imaging is achieved by designing an electronically switched bi-static array using high-performance microwave components, a multi-threaded data pipeline, and efficient hardware-accelerated processing algorithms. Experiments successfully image low radar cross section (RCS) objects, fast moving objects in free-space, and a human behind a 10 cm-thick solid concrete wall.

Published in:

Phased Array Systems and Technology (ARRAY), 2010 IEEE International Symposium on

Date of Conference:

12-15 Oct. 2010