激光技术2016，Vol.40Issue(5)：676-681,6.DOI:10.7510/jgjs.issn.1001-3806.2016.05.012
金属平板的太赫兹雷达散射截面测量
Measurement of terahertz radar cross sections of metal plates
摘要
Abstract
In order to measure radar cross sections (RCS) of metal plates, the RCSs were measured with a terahertz time-domain spectroscopy ( THz-TDS) system and a 0.1THz continuous-wave measurement system respectively .RCS measurement modules were analyzed theoretically .The results show that measurement errors increase with the increase of measurement frequency and angles for a THz-TDS.For 0.1THz continuous-wave measurement system , errors increase with the increase of angles , and errors increase first and then decrease with the increase of the size of metal plates .The minimum error is -0.244dB.The results show that RCSs of metal plates can be obtained with both systems .Advantages of a THz-TDS are large frequency range and excellent angular resolution .Advantages of a 0.1THz continuous-wave measurement system are simpler structure , faster imaging speed and convenience .关键词
测量与计量/雷达散射截面/太赫兹时域光谱系统/0.1 THz连续波测量系统Key words
measurement and metrology/radar cross section/terahertz time-domain spectroscopy system/0.1THz continuous-wave measurement system分类
信息技术与安全科学引用本文复制引用
聂雪莹,项飞荻,黄欣,刘劲松,杨振刚,王可嘉..金属平板的太赫兹雷达散射截面测量[J].激光技术,2016,40(5):676-681,6.基金项目
上海市航天科技创新基金资助项目 （）
