Wall characterization for through-the-wall radar applications

Gene Greneker; E. O. Rausch

doi:10.1117/12.778198

15 April 2008 Wall characterization for through-the-wall radar applications

Gene Greneker, E. O. Rausch

Proceedings Volume 6947, Radar Sensor Technology XII; 69470D (2008) https://doi.org/10.1117/12.778198
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

There has been continuing interest in the penetration of multilayer building materials, such as wood walls with air gaps and concrete hollow core block, using through-the-wall (TTW) radar systems. TTW operational techniques and signal propagation paths vary depending on how the TTW system is intended to be operated. For example, the operator of a TTW radar may be required to place the radar against the intervening wall of interest while collecting data. Other operational doctrines allow the radar to be operated in a stand-off mode from the wall. The stand-off distances can vary from feet to hundreds of feet, depending on the type of radar being used. When a signal is propagated through a multilayer wall with air gaps between the material and the wall construction uses materials of radically different dielectric constants, attenuation may not be the only effect that the probing signal experiences passing through the wall. This paper presents measurements of a hollow core concrete block wall and the measurement of a standard wall constructed of siding and wallboard. Both types of walls are typically found in most U.S. homes. These limited measurements demonstrate that the type of wall being penetrated by a wideband signal can modify the probing signal.

Citation Download Citation

Gene Greneker and E. O. Rausch "Wall characterization for through-the-wall radar applications", Proc. SPIE 6947, Radar Sensor Technology XII, 69470D (15 April 2008); https://doi.org/10.1117/12.778198

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