Human-competitive evolved antennas

Created by W.Langdon from gp-bibliography.bib Revision:1.4420

  author =       "Jason D. Lohn and Gregory Hornby and Derek S. Linden",
  title =        "Human-competitive evolved antennas",
  journal =      "Artificial Intelligence for Engineering Design,
                 Analysis and Manufacturing",
  volume =       "22",
  number =       "3",
  year =         "2008",
  pages =        "235--247",
  DOI =          "doi:10.1017/S0890060408000164",
  bibsource =    "DBLP,",
  keywords =     "genetic algorithms, genetic programming, Antenna,
                 Computational Design Design, Evolutionary Computation,
                 Spacecraft, Wire Antenna",
  size =         "13 pages",
  abstract =     "We present a case study showing a human-competitive
                 design of an evolved antenna that was deployed on a
                 NASA spacecraft in 2006. We were fortunate to develop
                 our antennas in parallel with another group using
                 traditional design methodologies. This allowed us to
                 demonstrate that our techniques were human-competitive
                 because our automatically designed antenna could be
                 directly compared to a human-designed antenna. The
                 antennas described below were evolved to meet a
                 challenging set of mission requirements, most notably
                 the combination of wide beamwidth for a circularly
                 polarized wave and wide bandwidth. Two evolutionary
                 algorithms were used in the development process: one
                 used a genetic algorithm style representation that did
                 not allow branching in the antenna arms; the second
                 used a genetic programming style tree-structured
                 representation that allowed branching in the antenna
                 arms. The highest performance antennas from both
                 algorithms were fabricated and tested, and both yielded
                 very similar performance. Both antennas were comparable
                 in performance to a hand-designed antenna produced by
                 the antenna contractor for the mission, and so we
                 consider them examples of human-competitive performance
                 by evolutionary algorithms. Our design was approved for
                 flight, and three copies of it were successfully flown
                 on NASA's Space Technology 5 mission between March 22
                 and June 30, 2006. These evolved antennas represent the
                 first evolved hardware in space and the first evolved
                 antennas to be deployed.",
  notes =        "* better coverage * significantly higher efficiency *
                 fewer parts: lower cost, increased reliability, easier
                 manufacture * naturally matched to 50 Ohms * faster
                 design time * rapid redesign accomplished at a small
                 cost and in a short time frame",

Genetic Programming entries for Jason Lohn Gregory S Hornby Derek S Linden