Random Array Through the Wall Imaging Sensor

Abstract : The activities performed by AKELA under contract F30602-03-C-0085 have been designed to meet the operational need for better tactical surveillance information for military and law enforcement personnel while conducting urban operations. We have developed a small, robust, cost effective radar capable of detecting both large and small motions at substantial standoff distances through steel reinforced concrete walls. The software we have developed to control the radar and perform imaging has demonstrated the capability to perform imaging in real time at frame rates up to 5 frames a second. We have characterized in detail the frequency dependent attenuation of most common wall types. The system has demonstrated the ability to be used with antennas in random locations using wireless control. We have made detailed measurements and predictions of the system's probability of detecting individuals through different types of walls as a function of distance. And we have demonstrated the ability for sensor self location. The data collected and analysis performed this program are sufficient to allow point designs for STTW systems to be made.