摘要
论述了国外基于微波上倍频、激光下变频、THz时域光谱三种典型太赫兹波目标雷达散射截面(RCS)缩比测试系统的构成、技术特点和应用范围。采用固态器件、基于微波上倍频技术集成研制了宽带太赫兹低频端目标RCS测量系统,采用基于扫频的时域法RCS测量技术和小角度旋转目标雷达合成孔径(ISAR)成像方法对小目标进行了电磁散射特性测量,获取了目标RCS和二维散射成像信息。
This paper reviews three kinds of terahertz （THz） radar cross section （RCS） measurement technologies, viz. microwave up-conversion, laser down-conversion and terahertz time-domain spectrum. Their characteristics like set-ups, specialties and applications are mainly introduced. We build a THz RCS measurement system with solid state components based on microwave up-conversion technology, and employ time-domain method based on the sweep and inverse synthetic aperture radar （ISAR） technologies to perform angle- and frequency-resolved RCS measurements on scale-model targets, then the 2D scattering image and RCS on targets are obtained.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2013年第6期1541-1544,共4页
High Power Laser and Particle Beams
关键词
太赫兹
微波上倍频
时域光谱
雷达散射截面
缩比测量
terahertz, microwave up-conversion, time-domain spectrum, radar cross section, scaled measurement
