基于单站双波段红外图像的面目标被动测距研究  

Research of the Surface Target Ranging on Single-station Dual-band IR Image

作　　者：杨德贵[1] 黎湘[1] 肖顺平[1] 

机构地区：[1]国防科技大学电子科学与工程学院空间电子与信息技术研究所,湖南长沙410073

出　　处：《信号处理》2010年第5期714-718,共5页Journal of Signal Processing

基　　金："十一五"目标特性预研项目

摘　　要：论文将凝视红外成像系统的工作过程划分为与目标距离有关的第一阶段和只与探测器有关的第二阶段;针对第一阶段推导了面目标在凝视红外成像系统入瞳处的辐亮度的表达式,针对第二阶段利用黑体定标实验求解了红外图像灰度与入瞳处目标辐亮度之间的表达式;然后基于单站双波段红外成像系统所得到的目标红外图像推导了面目标距离表达式。最后论文采用机场等地实测单站双波段红外图像数据对算法进行了验证并对试验结果和误差进行了分析。In this paper the Staring Infrared Imaging System process is divided into two stages, the one is related with the target distance, another with the sensor only. The apparent radiance of the surface target and the expression between the pixel gray and the apparent radiance were deduced based on each stage respectively. Then the aerial and ground surface target distance was deduced based on the single-station dual-band infrared image. Lastly the algorithm was validated by the IR images got from the aerodrome etc, and the results and ranging errors were analyzed.

关 键 词：红外成像系统 入瞳辐亮度 双波段 红外图像 表观温度 

分 类 号：TN951[电子电信—信号与信息处理]