航空工程进展2025，Vol.16Issue(3)：181-188,8.DOI:10.16615/j.cnki.1674-8190.2025.03.19
海上低空直升机RCS与隐身性能分析
RCS and stealth performance analyses of marine low-altitude helicopter
摘要
Abstract
The study of radar target characteristics and stealth performance of low altitude helicopters at sea can pro-vide a basis for path planning.a random rough sea surface model is established in this paper.Based on the high fre-quency approximation method,the radar target characteristics of helicopters flying at low altitude on the sea are ana-lyzed.The radar cross section(RCS)of isolated helicopters,the composite electromagnetic scattering of helicop-ters in the background of sea surface environment,the radar stealth performance of offshore helicopters at different flight heights are studied,and the influence rules are summarized.The results show that under direct radar wave conditions,a strong scattering source is formed at the large curvature radius of the helicopter surface,exhibiting a high RCS.When helicopter is flying at sea,as the flying altitude increases,the coupling effect between the helicop-ter and the sea weakens,their composite electromagnetic scattering gradually approaches that an isolated helicop-ter.When helicopter fly at sea,it can lower their altitude to shorten the exposure distance and to some extent avoid enemy radar tracking,achieving stealth penetration.关键词
海上直升机/随机粗糙海面/雷达散射截面/隐身性能/暴露距离Key words
marine helicopter/random rough sea surface/radar cross section/stealth performance/exposure dis-tance分类
航空航天引用本文复制引用
梁成良,费钟阳,招启军,陈希..海上低空直升机RCS与隐身性能分析[J].航空工程进展,2025,16(3):181-188,8.基金项目
江苏高校优势学科建设工程资助项目 （）
