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In FPGA embedded systems, designers usually have to make a compromise between numerical precision and logical resources. Scientific computations in particular, usually require highly accurate calculations and are computing intensive. In this context, a designer is left with the task of implementing several arithmetic cores for parallel processing while(More)
In order to avoid the computational complexities involved in analyzing reconfigurable antennas, neural networks are used as an alternate approach. The neural network finds the location of the operational frequency bands for any combination of switches connecting different radiating elements. The network outputs are compared with the experimentally measured(More)
This paper addresses the functional reliability and the complexity of reconfigurable antennas using graph models. The correlation between complexity and reliability for any given reconfigurable antenna is defined. Two methods are proposed to reduce failures and improve the reliability of reconfigurable antennas. The failures are caused by the(More)
The Air Force Research Laboratory (AFRL) is interested in using nanosats to perform space experiments, demonstrate new technology, develop operational systems, and integrate advanced responsive space system technology. One potential operational application of nanosats is using clusters of microsatellites that operate cooperatively to perform the function of(More)
  • Joshua F. Androlewicz, Ryan L. Buffington, +5 authors James Lyke
  • 2011
Command of the RF spectrum is essential to current and future Air Force operations, and space operations are no exception to this statement. Current military satellite assets provide unique capabilities to the warfighter, particularly communications and broadcast services such as GPS. But even as demand for these services soars due to expectations driven by(More)