Volume 34 Issue 09
Sep.  2008
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Li Zhiping, He Guoyu. Simulation on bistatic RCS measurement method in anechoic chamber[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(09): 1049-1052. (in Chinese)
Citation: Li Zhiping, He Guoyu. Simulation on bistatic RCS measurement method in anechoic chamber[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(09): 1049-1052. (in Chinese)

Simulation on bistatic RCS measurement method in anechoic chamber

  • Received Date: 30 Aug 2007
  • Publish Date: 30 Sep 2008
  • An method was presented to measure bistatic RCS in anechoic chamber. The target was illuminated by compact antenna test range (CATR), and the scattered field was probed in near-field. The transformation from near-field to far-field (N2F) was analyzed by antennas coupling equation, plane wave synthesis and equivalence theorem. Sampling rate, maximum angle and taper function in N2F were formulated to analyze the measurement-s performance. The sampling interval needs to be half wavelength, and undersample will worsen the maximum angle. The maximum angle-s estimation was perfected using the synthetic aperture-s projection. Far-field was determined by localized near-field approximatively, which can be concluded using stationary phase method. A taper function was applied to the near-field data that reduces the error of the scanning truncation. The method was validated through numerical example finally.

     

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