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The Air Force Research Laboratory (AFRL), Sensors Directorate is evolving the Outdoor Radar Range (ORR) to provide the research community with state-of-the-art testbed capabilities for the next decades. In this work, a general overview of the ORR will be presented, with particular emphasis on potential research activities of interest for both the antennas/propagation and the radar communities.
This paper, one in a series on new initiatives in wireless tomography, combines two areas: wireless communication and radio tomography. This paper discusses implementation of wireless tomography in a distributed architecture. Each sensor node in the wireless tomography system solves the local optimization problem to get the image and shares its own imaging result to all the other sensor nodes. The...
This paper presents the architecture and initial measured performance of a closed-loop multi-input multi-output (MIMO) wide-band cognitive sensing system. A cognitive sensing system is one kind of cyber-physical systems that integrate the computational and physical resources for application driven tasks. In this system, computational resources dwell in the computing engine that controls the closed-loop...
We propose a prototype system for wireless tomographic imaging using commercially available software defined radio systems. The proposed architecture utilizes USRP2 systems as sensor nodes. The USRP2 system is evaluated as a means of accurately measuring attenuation for use in self-coherent tomography. The potential error and its impact on the accuracy of our proposed system is explored.
A new software-defined S-band radar (SDSR) has recently been developed at the Air Force Research Laboratory. The system is built upon individual off-the-shelf components, devices, and instruments, and the center of the architecture is an Arbitrary Waveform Generator (AWG). The AWG can be programmed to generate various kinds of radar waveforms, which are mixed with a carrier to create S-band radar...
An S-band, full-duplex, multi-channel, transmit/receive (T/R) module has been designed, developed, and produced in large quantities for phased array satellite ground station applications. The satellites, in LEO, MEO, and GEO orbits, need a global network of such stations to serve as gateways for tracking, telemetry, and command (TT&C) operations and/or payload data routing. The array provides...
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