空中光电位姿测量系统的抗干扰方法

发布时间：2018-05-19 15:56

本文选题：位姿测量 + 机器视觉　；参考：《纳米技术与精密工程》2017年03期

【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]:In order to improve the reliability and environmental adaptability of the aerial photoelectronic pose measurement system, two interference factors that affect the imaging quality in the complex environment are analyzed. One is the interference of the sun mainly and the two is the attenuation of the atmospheric radiation under the complex weather conditions. The sky background under different conditions is analyzed by using the MODTRAN model. Luminance and atmospheric transmittance, and on this basis, the following anti-interference measures are proposed: the high power LED in the near infrared band is selected as the cooperation target, the contrast of the target background is improved; the narrow band filter matching with the LED is added to the optical path to eliminate the interference of the miscellaneous light outside the working band of the LED; and the feature analysis method is adopted in the image processing stage. The interference of direct sunlight into the lens is eliminated. A simulated target is designed, and the feasibility of the above measures is verified by experiments.
【作者单位】：天津大学微光机电系统技术教育部重点实验室;
【分类号】：TN29;TP391.41

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