摘要
为了实现全景范围内的多目标跟踪搜索,克服连续捕获新目标时出现的低效、实时性差等缺点,提出了一种五通道红外全景系统设计方法。该方法利用空间分布5个视场大于90°的红外物镜与转向系统将五路光汇合成一路光,使用一个探测器代替多个探测器接收方位和顶视的图像信息,实现了方位360°和顶视90°视场范围内的成像,同时降低了系统的设计成本,减小了系统体积。鉴于在环境温度-40~60℃之间工作的中波红外全景系统会由于温度变化而导致系统的成像质量变差,故采用光学被动式无热化设计,以消除温度效应对系统的影响,在给定的温度范围内,成像质量满足设计要求。
In order to realize the function of panoramic multi-target tracking and searching,and overcome the disadvantage of inefficient,bad real-time in new continuous target capturing,a design method of five-channel infrared panoramic system was proposed.The spatial distribution of five infrared lens with greater than 90° field and the steering system combined five light paths into one.A detector replaced several detectors to receive the image information with azimuth and top,and the imaging was achieved within direction of 360° and the top position of 90° field of view,its cost and volume were reduced at the same time.Middle infrared panoramic system could generate poor imaging quality for temperature change in the range of-40-60 ℃,in which the optical passive athermalisation is applied to eliminate the influence of temperature effect,so that the imaging quality meets the design requirements at the given temperature range.
出处
《红外与激光工程》
EI
CSCD
北大核心
2011年第4期668-673,共6页
Infrared and Laser Engineering
基金
国防基础预研项目
关键词
红外全景系统
五通道
光学被动式
无热化设计
infrared panoramic system
five-channel
optical passive mode
athermalisation
