摘要
研究了毫米波无源探测器探测草地背景中水泥路面的原理.根据8mm和3mm波段下天线和地物辐射计的特性,计算出8mm和3mm辐射计探测地面目标的天线温度对比度,得到这两种辐射计在各种天线口径和工作条件下的最大探测距离,并对两者的实际探测效果进行了比较.
The principle of mmW passive detecting cement roads was studied. According to the antenna, surface feature and radiometer characteristic of 3-ram and 8-mm waveband, the antenna temperature contrast and the maximal detecting distance of 3-mm and 8-mm radiometers were obtained by different antenna diameters and working conditions. Also, the actual detection effect of these two models was compared.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第5期389-392,共4页
Journal of Infrared and Millimeter Waves
基金
航天支撑技术基金(0506)
关键词
无源探测
灵敏度
天线温度对比度
passive detection
sensitivity
antenna temperature contrast
