运动物体大气扰流可视化光学监测实验研究  

Experimental study on visual optical monitoring of the atmospheric disturbance of moving objects

作　　者：张月[1] 王旭[2] 苏云 张学敏 郑国宪[1] Zhang Yue;Wang Xu;Su Yun;Zhang Xuemin;Zheng Guoxian(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China;Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621000,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]中国工程物理研究院流体物理研究所,四川绵阳621000

出　　处：《红外与激光工程》2022年第8期327-333,共7页Infrared and Laser Engineering

基　　金：国家自然科学基金(61775102)。

摘　　要：利用运动物体高精度大气扰流检出方法,以散斑图像及多类卫星图像为背景,对高压气流冲击下飞机缩比模型形成的大气扰流情况开展了实验研究。验证了不同背景图像分辨率、不同背景类型条件下,大气扰流可视化光学监测方法可检出大气扰流折射率梯度为10^(-6)。并通过可直接显示大气扰流信息的传统纹影成像实验,获得相同工况条件下大气扰流信息,通过对比分析,得出利用大气扰流可视化方法获取的大气扰流信息与直接显示的大气扰流信息分布及细节都相同,从而直接验证了卫星图像背景条件下大气扰流可视化光学监测方法检出大气扰流结果的正确性。文中成果验证了实验室条件下运动物体大气扰流可视化光学监测方法的正确性及大气扰流的检出精度。Based on a high-precision atmospheric disturbance monitoring method for moving objects,speckle images and various satellite images were used as background,and an experimental study on the atmospheric disturbance caused by an airplane scale model was carried out with the airplane model under the impact of highpressure air flow.It was verified that the refractive index gradient of atmospheric disturbance was 10^(−6) by visual optical detection method for atmospheric disturbance of moving objects under the conditions of various background images with different resolutions and different types.The visual atmospheric disturbance information in the same experimental condition was obtained by the traditional schlieren imaging experiment,which can directly display the information of atmospheric disturbance.Through contrastive analysis,the results showed that the atmospheric disturbance information obtained by the visual optical monitoring method was the same as the directly displayed information,so the correctness of the visual optical detection method on atmospheric disturbance in the background of satellite images was directly verified.The results of this paper verified that the correctness of the visual optical monitoring method for atmospheric disturbance of moving objects in the laboratory and the monitoring accuracy of atmospheric disturbance in the condition of the laboratory test.

关 键 词：扰流检出 光线偏折 背景纹影 检出精度 

分 类 号：O439[机械工程—光学工程]