전자전 환경에서의 거친 표면에 대한 지면 클러터 수신신호 모의 (Simulation of Ground Clutter Received Signals on Rough Surfaces in an Electronic Warfare Environment)

서지정보

· 발행기관 : 한국전자파학회
· 수록지 정보 : 한국전자파학회 논문지 / 36권 / 1호 / 95 ~ 105페이지
· 저자명 : 문수혁, 김기인, 최혁재, 김경태

초록

본 논문에서는전자전환경에서무작위거친표면에대한지면클러터모의신호생성방법을제안하였다. 전자전지원상황에서수신기는지면클러터신호를포함한위협신호를수신하므로, 실제지면클러터신호와유사하게이를모의하는것이매우중요하다. 기존의클러터모의신호생성방식들은특정상황과조건에만유효하거나, 경험적인데이터에의존하여일반화에한계가있었다. 본논문에서는키르히호프근사를적용하여임의의지형에대한클러터산란계수를추정하고, 이를바탕으로전자전수신기가수신하는지면클러터모의신호를생성하여시뮬레이션하는방식을제안하였다. 시뮬레이션의 타당성을검증하기위해, LoS 신호만을시뮬레이션한신호와클러터를포함한신호를실측신호와비교하여상관계수를계산하였고, 상승시간에대한비교도수행하였다. 시뮬레이션결과, 실측신호와의상관계수는 수신기 높이에따라3∼6 % 증가하였으며, 상승 시간의 오차가 감소하는 유의미한 결과를 보였다.

영어초록

This study proposes a method for generating simulated ground clutter signals over randomly rough surfaces in an electronic warfare (EW) environment. In EW scenarios, the receiver captures threat signals that include ground-clutter components, making it crucial to simulate signals that resemble real ground clutter accurately. Previous methods for generating clutter signals have often been limited to specific conditions or relied on empirical data, making generalization difficult. In this study, we applied the Kirchhoff approximation to estimate the clutter-scattering coefficients for arbitrary terrains and proposed a simulation method that generates ground clutter signals received by an electronic warfare receiver. To validate the accuracy of the simulation, we compared the correlation coefficients between the simulated and measured signals by focusing on the simulations with only line-of-sight (LoS) signals and those with both LoS and clutter components. In addition, the rise times were compared. The results showed an increase in correlation coefficients by 1∼4 % depending on receiver height and a significant reduction in rising time errors, demonstrating the effectiveness of the proposed method.

참고자료

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