Radar cross-section enhancement of concrete specimen with trihedral corner reflector structure buried
Low electromagnetic fields backscattering from concrete pavement as its smooth surface results the much darker image feature when exposures to imaging radar when compared with rough surface such as vegetation.In this paper,exploratory research on radar cross-section enhancement of concrete specimens with trihedral corner reflectors structure buried is presented.Scattering properties of concrete specimen,corner reflector and concrete specimen mixed with corner reflectors are numerical simulation based on the model of finite difference-time domain(FD-TD) in lossy dielectric with perfect matched layer(PML) in z-direction and period boundary conditions(PBC) in x,y-direction.In the conditions of given incident wave and dielectric coefficient of concrete specimen,the monostatic RCS of concrete specimen mixed trihedral corner reflectors with 5 times of wavelength is 3.6dBsm,the average is -9.8dBsm in direction of 30-60degree.
WANG Zhan-feng LV Xu-liang JIA Qi
Materials Research Laboratory,Nanjing Engineering Institute,No.1 Haifuxiang,Nanjing 210007,China
国际会议
昆明
英文
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）