Radar signatures of indoor clutter for through-the-wall radar applications

Travis D. Bufler; Ram M. Narayanan; Traian Dogaru

doi:10.1117/12.2050129

29 May 2014 Radar signatures of indoor clutter for through-the-wall radar applications

Travis D. Bufler, Ram M. Narayanan, Traian Dogaru

Proceedings Volume 9077, Radar Sensor Technology XVIII; 90770E (2014) https://doi.org/10.1117/12.2050129
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

In through-the-wall radar (TTWR) applications, scattering by indoor clutter elements can greatly confound the detection of humans. This paper analyzes the spectral and azimuthal scattering characteristics of various types of individual furniture targets and compares these to humans. Radar cross section (RCS) values of furniture and humans are obtained using the finite difference time domain (FDTD) technique over the 1-5 GHz frequency range and the 0-360 azimuth angle range for both co- and cross-polarized scattering. In the case of furniture, RCS responses show to the highest returns when viewing the planar surfaces of the clutter objects. Objects consisting primarily of smaller planar surfaces with more complex geometrical features showed a more uniform response with no preferred orientation showing a larger response. Human RCS produced from the biological models showed a more constant RCS when viewing the co-polarized response, where the back produced the highest response due to the more planar surface. The cross-polarized response was more varied providing for a wider range of RCS values.

Citation Download Citation

Travis D. Bufler, Ram M. Narayanan, and Traian Dogaru "Radar signatures of indoor clutter for through-the-wall radar applications", Proc. SPIE 9077, Radar Sensor Technology XVIII, 90770E (29 May 2014); https://doi.org/10.1117/12.2050129

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