Abstract
본 논문에서는 비행체 방어를 위해 널리 사용되고 있는 채프의 레이다 반사 단면적(RCS Radar Cross Section) 계산 방법에 대해 다루었다. 채프의 RCS는 바람, 비행체의 속도, 대기확산 속도 등에 따라서 달라진다. 채프를 레이다 사용주파수 대역에서 다이폴 안테나로 가정하고, 다이폴 안테나의 산란특성 분석을 통하여 RCS 값을 예측하였다. 본 논문에서는 다이폴 모델을 이용한 이론적 계산 결과와 전산모사를 이용하여 계산한 RCS를 비교하였으며 유사한 결과를 얻었다. In this paper, the computation of electromagnetic wave scattering is presented for chaff clouds which is widely used to protect an aircraft. The RCS depends on the wind, the aircraft velocity, and the atmospheric diffusion. It is assumed that the RF chaff is a thin dipole antenna and the RCS is calculated based on the scattering wave theory. The theoretical estimation and the simulation results are compared and shown a good agreement.
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