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We present a system for performing evolution directly on an antenna array. The system is composed of three programmable antennas and runs in an antenna chamber under the control of an evolutionary algorithm. Fitness is measured in two ways. First, we assess how well the antenna array radiation pattern matches a desired null-steering pattern, which changes over time. Second, we measure how well the...
Fault tolerance is a critical property for many communication systems, whether it is commercial or governmental, related to defense or aerospace, be it terrestrial, airborne or in space. Redundancy is a common approach to fault-tolerance but incurs extra cost, mass, and overall system complexity. Self-healing systems are appealing because they avoid some of the disadvantages of redundancy while allowing...
This paper presents a genetically evolved antijamming beamforming array. The performance of a genetic algorithm (GA) is evaluated in situ as part of a hardware-in-the-loop optimization system. The GA was able to find reasonable beamformer settings to thwart a maximum of three stationary jammers while allowing reception of a signal of interest. Although the array operates in the 2.4 GHz 802.11g band,...
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