基于TDSBR-TDEEC算法的铁塔电大目标RCS特性研究  

A Study on RCS Characteristics of Electrically Large Targets of Towers Based on TDSBR-TDEEC Algorithm

作　　者：方健 马恒瑞 FANG Jian;MA Hengrui(Wuhan Technical College of Communications,Wuhan 430000,Hubei,China;New Energy(Photovoltaic)Industry Research Center of Qinghai University,Xining 810016,Qinghai,China)

机构地区：[1]武汉交通职业学院,湖北武汉430000 [2]青海大学新能源(光伏)产业研究中心,青海西宁810016

出　　处：《电网与清洁能源》2023年第1期43-51,共9页Power System and Clean Energy

基　　金：国家自然科学基金(51907096)。

摘　　要：传统TDSBR高频散射算法忽略了电大尺寸目标阴影部分产生的绕射场,计算结果具有一定的局限性。为此,该文引入TDEEC算法,认为电大尺寸目标阴影部分产生散射效应的原因在于目标的棱边,通过对棱边的电磁流及绕射系数进行计算,进而得到了棱边部分产生的绕射场。然后使用TDSBR算法对目标照明区的散射场进行求解,将其与已求得的棱边绕射场叠加,最终实现了电大目标散射特性的求解。最后以输电铁塔的高频RCS特性计算为例,验证了TDSBR-TDEEC算法的优越性。The traditional TDSBR high frequency scattering algorithm ignores the diffraction field generated by the shadow part of electrically large targets,and therefore the calculation results have some limitations. To this end,the TDEEC algorithm is introduced in this paper. It is considered that the scattering effect of the shadow part of electrically large-scale target lies in the edge of the target. Through the calculation of the electromagnetic current and diffraction coefficient of the edge,the scattering field and diffraction field produced by the edge part are obtained. Then the TDSBR algorithm is used to solve the scattering field in the target illumination area, which is superimposed with the obtained edge diffraction field,and finally the scattering characteristics of electrically large targets are solved. Finally,taking the calculation of high frequency RCS characteristics of transmission tower as an example,the superiority of the TDSBR-TDEEC algorithm is verified.

关 键 词：TDSBR-TDEEC算法 RCS特性 绕射系数 

分 类 号：TN957[电子电信—信号与信息处理]