Indoor imagery with a 3D through-wall synthetic aperture radar

Pascale Sévigny; David J. DiFilippo; Tony Laneve; Jonathan Fournier

doi:10.1117/12.919781

3 May 2012 Indoor imagery with a 3D through-wall synthetic aperture radar

Pascale Sévigny, David J. DiFilippo, Tony Laneve, Jonathan Fournier

Proceedings Volume 8361, Radar Sensor Technology XVI; 83610K (2012) https://doi.org/10.1117/12.919781
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Through-wall radar imaging is an emerging technology with great interest to military and police forces operating in an urban environment. A through-wall imaging radar can potentially provide interior room layouts as well as detection and localization of targets of interest within a building. In this paper, we present our through-wall radar system mounted on the side of a vehicle and driven along a path in front of a building of interest. The vehicle is equipped with a LIDAR (Light Detection and Ranging) and motion sensors that provide auxiliary information. The radar uses an ultra wideband frequency-modulated continuous wave (FMCW) waveform to obtain high range resolution. Our system is composed of a vertical linear receive array to discriminate targets in elevation, and two transmit elements operated in a slow multiple-input multiple output (MIMO) configuration to increase the achievable elevation resolution. High resolution in the along-track direction is obtained through synthetic aperture radar (SAR) techniques. We present experimental results that demonstrate the 3-D capability of the radar. We further demonstrate target detection behind challenging walls, and imagery of internal wall features. Finally, we discuss future work.

Citation Download Citation

Pascale Sévigny, David J. DiFilippo, Tony Laneve, and Jonathan Fournier "Indoor imagery with a 3D through-wall synthetic aperture radar", Proc. SPIE 8361, Radar Sensor Technology XVI, 83610K (3 May 2012); https://doi.org/10.1117/12.919781

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