基于ISAR技术的太赫兹目标RCS测量（英文）  

Terahertz target radar cross-section measurement with ISAR technique

作　　者：喻洋[1] 皮亦鸣[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731

出　　处：《红外与毫米波学报》2015年第5期545-550,共6页Journal of Infrared and Millimeter Waves

基　　金：Supported by the National Natural Science Foundation of China(61271287,61371048,61301265)

摘　　要：对目标RCS的研究主要包括电磁计算与基于成像的测量方法.由于受到计算机内存与运行时间的限制,电磁计算方法难以在太赫兹波段得到广泛应用.在基于图像的测量中常使用逆合成孔径雷达成像技术.后向散射算法(BP)常用于目标的反射图的重建.由于BP算法不能在图像中反映太赫兹波段目标显著的角闪烁现象,因此,使用子孔径成像技术对太赫兹目标RCS进行测量,并进行了仿真验证所提出算法的有效性.Researches of RCS include computational electromagnetics and image-based measurement. Restricted by computer memory and operating time,computational electromagnetic methods are difficult to be w idely applied in terahertz band. Inverse Synthetic Aperture Radar（ ISAR） imaging technique has been commonly utilized in imagebased measurement. The reflectivity images are usually reconstructed by back-projection（ BP） algorithm. How ever,the RCS angular glint is significant in terahertz band,w hich cannot be revealed in the BP images. Thus,the sub-aperture imaging technique w as employed to measure the target RCS in terahertz band in this paper. Numerical simulations w ere adopted to test the validity of the proposed method.

关 键 词：太赫兹 ISAR RCS 子孔镜成像 

分 类 号：N959.3[自然科学总论]