航空相机焦面位置定位量测  

Locating of Focal Plane Position for Aerial Cameras

作　　者：赵梅[1] 

机构地区：[1]空军航空大学特种专业系,长春130022

出　　处：《电光与控制》2010年第4期66-68,78,共4页Electronics Optics & Control

基　　金：空军重点基金资助项目(KJZ03542)

摘　　要：提出了一种定位航空相机焦面位置的系统,论述了系统的工作原理、硬件组成和软件设计。该系统采用平行光管产生焦面定位信息,利用CCD摄像头作光电转换器件接收图像,采用重心法处理数据,由光电位移传感器控制摄像头轴向的精确平移,根据采集的图像尺寸定位相机的焦面,利用焦面与实际成像面之间的距离判断是否离焦。通过对多部航空相机进行测试,是否离焦的判断与试飞结果完全相同。使用该系统能够判断航空相机是否离焦,进而判断相机能否正常工作。A system for locating the focal plane position of aerial cameras is designed principle, hardware components and software design of the system are described. , and the working In the system, a collimator is used for producing locating information, and CCD camera is used as a photoelectric converter for receiving the images. The data is processed by the center of gravity method, and the converter controls the translation of the camera in axial direction precisely. The focal plane was determined by size of the collected images. Defocusing or not is judged based on the distance between focal plane and the real image position. Tests to a couple of aerial cameras show that the defocusing judgment result is the same as the flight test result. Therefore, the system can be used to judge whether the aerial camera is defocusing, and thus to judge whether it can work normally or not.

关 键 词：航空相机 焦面定位 重心法 CCD 光电转换器 

分 类 号：V245.6[航空宇航科学与技术—飞行器设计] TN286.5[电子电信—物理电子学]