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由于航空安全的推动,飞机尾流的雷达探测成为雷达技术领域的新兴前沿课题。作为一类极为特殊的时变、非均匀、分布式、弱散射介质目标,飞机尾流的散射特性极具理论研究价值,同时对尾流的雷达探测技术研究具有重要指导意义。在尾流散射特性研究领域,尾流散射能力的度量存在体散射率、线散射率和雷达散射截面(RCS)直接度量三种方法。然而,目前尚未见这三种度量方法的物理基础、特点、内在关系、相互转换关系的分析。对上述问题进行了讨论,为以后的飞机尾流电磁散射特性研究和工程应用提供参考。
Due to the promotion of aviation safety, the radar detection of aircraft wake has become a new frontier issue in the field of radar technology. As a very special target of time-varying, inhomogeneous, distributed and weak scattering media, the scattering characteristics of aircraft wake are of great theoretic research value. At the same time, it has important guiding significance for the research of wake detection technology of wake. In the field of wake scattering characteristics, there are three methods for measuring wake scattering capability: bulk scattering rate, line scattering rate and direct measurement of radar cross section (RCS). However, the physical basis, characteristics, internal relations and mutual transformation of these three measurement methods have not yet been analyzed. The above problems are discussed, which will provide reference for the future research and engineering application of aircraft wake scattering.