针对海面目标的机载红外单站几何定位技术  

The Single Station Geometric Positioning Technology of Airborne Infrared System for Sea Surface Targets

作　　者：赵洪宇[1] 何建伟[1] 王卫红[1] ZHAO Hong-yu HE Jian-wei WANG Wei-hong(China Academy of Electronics and Information Technology, Beijing 100041, China)

机构地区：[1]中国电子科学研究院,北京100041

出　　处：《中国电子科学研究院学报》2017年第4期410-413,共4页Journal of China Academy of Electronics and Information Technology

摘　　要：红外系统作为一种无源定位系统,其特点是被动探测,不受电磁干扰,具备测角功能,且测角精度高,但本身不具备测距功能。针对海面目标,利用载机可获得的参数,采用单站几何定位技术实现对目标的快速定位。本文分析红外探测器的几何定位算法,推导了几何定位误差公式,总结了影响定位精度的因素,并比较了载机在不同高度、不同俯仰角下对定位精度的影响。仿真结果表明,单站几何定位的精度受载机高度、俯仰角的影响,在俯仰角较小时,基于单站几何定位的定位精度极高,具有一定的工程意义。Infrared system is a passive positioning system,which is characterized by passive detection,free from electromagnetic interference,angle function,and the high precision of angle measurements,but itself does not have the ranging function. For the sea targets,the single position geometric positioning technique is used to realize the rapid positioning of the target with the obtained parameters of aircraft. In this paper,the geometric localization algorithm of the infrared detector is analyzed,the geometric error formula is deduced,and the factors that affect the positioning accuracy are summarized. The positioning accuracy is compared with different height of aircraft and different pitch angle. The simulation results show that the accuracy of single station geometric positioning is affected by the height of the aircraft and the pitch angle of the targets,and the accuracy of single station geometric positioning is very high when the pitch angle of the targets is small,which has a certain engineering significance.

关 键 词：红外 单站几何定位 定位精度 

分 类 号：TN216[电子电信—物理电子学]