|本期目录/Table of Contents|

 空中光电位姿测量系统的抗干扰方法(PDF)

《纳米技术与精密工程》[ISSN:1672-6030/CN:12-1351/O3]

期数:
2017年3期
页码:
175-180
栏目:
精密测量
出版日期:
2017-05-15

文章信息/Info

Title:
 Anti-interference Measures for Aerial Photoelectric
Pose Measurement System
文章编号:
1672-6030(2017)03-0175-06
作者:
 王向军 吕博
 天津大学微光机电系统技术教育部重点实验室, 天津 300072
Author(s):
 Wang Xiangjun Lü Bo
 Key Laboratory of MOEMS of the Ministry of Education, Tianjin University, Tianjin 300072, China
关键词:
 位姿测量机器视觉LEDMODTRAN
Keywords:
 pose measurement machine vision LED MODTRAN
分类号:
TN216;V19
DOI:
10.13494/j.npe.20150150
文献标识码:
A
摘要:
 为提高空中光电位姿测量系统的可靠性和环境适应性,分析了在复杂环境中工作时影响其成像质量的两种干扰因素:一是以阳光为主的杂光干扰,二是复杂天气条件下大气对光辐射的衰减.利用MODTRAN模型分析了不同条件下的天空背景亮度及大气透过率,并在此基础上提出以下抗干扰措施:选择近红外波段的大功率LED作为合作目标,提高了目标背景对比度;在光路中加入与LED匹配的窄带滤光片,消除了LED工作波段外杂光的干扰;在图像处理阶段采用特征分析的方法消除了阳光直射入镜头时的干扰.设计了模拟靶标,并通过实验验证了上述措施的可行性.
Abstract:
To improve the reliability and environment adaptability of aerial photoelectric pose measurement system, two disturbing factors that affect its imaging quality when working in complex environments are analyzed in this paper, including stray light interference caused by sunlight mainly and atmospheric attenuation under complicated weather conditions. After analyzing sky background luminance and atmospheric transmittance by using moderate resolution transmission model(MODTRAN), the following measures are proposed to enhance the imaging quality: choosing high power near infrared(NIR) light emitting diode(LED) as cooperative target to improve the targetbackground contrast; adding narrow band filter that matches the LED to eliminate the interference of stray light outside the LED’s working waveband; adopting the method of feature analysis in image processing to eliminate the interference when the sun appeared in the scope of the camera. Finally, the simulated target is designed and the feasibility of the abovementioned measures is verified.

参考文献/References

备注/Memo

备注/Memo:
收稿日期: 2017-03-08.
作者简介: 王向军(1955— ),男,博士,教授.
通讯作者: 王向军,xdocuxjw@vip.163.com.
更新日期/Last Update: 2017-07-11