Volume 31 Issue 09
Sep.  2005
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Lü Shanwei, Han Yanju, Wang Weiet al. Synthesis of the array’s amplitude and phase pattern using genetic algorithm[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(09): 1014-1017. (in Chinese)
Citation: Lü Shanwei, Han Yanju, Wang Weiet al. Synthesis of the array’s amplitude and phase pattern using genetic algorithm[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(09): 1014-1017. (in Chinese)

Synthesis of the array’s amplitude and phase pattern using genetic algorithm

  • Received Date: 20 Apr 2004
  • Publish Date: 30 Sep 2005
  • The element excitation relationships were analyzed respectively when the array patterns are symmetric, real or symmetric and real. Then genetic algorithm(GA) was introduced, and it was applied to synthesize array patterns. GA is an adaptive and global optimizing probability search method.It directly uses the objective function as search message.So GA can synthesize not only amplitude but also phase by designing the objective function correctly. It is fit for the conditions that need to compensate amplitude and phase and optimize multi-objective. At last, GA was proved to be valid and flexible through synthesizing flatbeam power pattern and the square of secant pattern which is used for the parabolic antenna’s initial feed.These two simulation examples imply that making best use of patterns’ real or symmetric characters in GA can reduce optimizing parameters and accelerate convergence speed. It also suggests that combining GA with traditional pattern synthesis method will farther reduce the evolution generations, which are needed to get the best solution.

     

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