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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1990, Vol. 11 ›› Issue (6): 276-280.

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RCS ANALYSIS FOR A CURVED HOLLOW DUCT

Feng Wenlan, Ruan Yingzheng   

  1. Chengdu University of Electronic Science and Technology
  • Received:1988-11-15 Revised:1900-01-01 Online:1990-06-25 Published:1990-06-25

Abstract: The elementary principle and method of complex ray have been used for RCS analysis of a large aperture concave hollow target, such as an engine intake by wave expansion with a set of Gaussian beams. In this paper, a curved hollow duct as a model of an engine intake is calculated. The effectiveness and accuracy of the method can be proved from the comparison of the calculation with the measured results.

Key words: radar cross section (RCS), complex ray theory, expansion