西安电子科技大学学报（自然科学版）2018，Vol.45Issue(1)：23-29,7.DOI:10.3969/j.issn.1001-2400.2018.01.005
高斯粗糙表面涂覆目标太赫兹散射特性
Electromagnetic scattering characteristic of Gaussian rough coated objects in terahertz
摘要
Abstract
The scattering characteristics of Gaussian roughness surface coated targets are studied in the terahertz (T Hz) band based on the Kirchhoff approximation and the physical optics (PO) method.Based on the Gaussian roughness surface,roughness surface cone and cone-cylinder models are built which are meshed according to the frequency of the incident wave to meet the PO calculation requirements.According to the Fresnel reflection coefficient,the current on the surface is calculated,and then the radar cross section (RCS) of the coating rough target is obtained.The RCS of the rough surface target are compared with the smooth target.Numerical results for the rough coated cone model and cone-cylinder model are given and discussed from different coating dielectric media, different coating thickness values, different angles of incidence,different frequencies,and different roughness values.The results show that the roughness of the target surface in the terahertz band has a significant effect on the scattering.关键词
高斯粗糙面/表面粗糙目标/太赫兹/物理光学Key words
Gaussian rough surface/roughness surface target/terahertz/physical optics分类
数理科学引用本文复制引用
赵华,郭立新..高斯粗糙表面涂覆目标太赫兹散射特性[J].西安电子科技大学学报（自然科学版）,2018,45(1):23-29,7.基金项目
国家自然科学基金重点资助项目(61431010) （61431010）
国家自然科学基金创新研究群体科学基金资助项目(61621005) （61621005）
