基于CCD摄像头的航空相机最佳成像位置定位系统

航空相机用来获得地面图像信息，是圆满完成侦察任务的重要的前提条件。提出了一种定位航空相机最佳成像位置的系统，论述了系统的工作原理、硬件组成。该系统采用光学准直系统产生定位信息，利用CCD摄像头作光电转换器件接收图像，采用最小二乘法处理数据，由测控系统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最佳成像位置，利用实际成像面与最佳成像位置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。

Locating system of optimum imaging position of aerial cameras with CCD cameras

Aerial cameras are used to obtain ground image, and their availabilities are the precondition to complete reconnaissance task satisfactorily, A locating system of optimum image position of aerial cameras is described. The locating information is produced by collimator. The optimum image position is determined by size of the collecting image with area CCD camera and least square method. Off-focus or not is judged based on the distance between the real image position and the optimum image position. Through the tests of multiple aerial cameras, the estimation of off-focus or not is similar with flight result with the system.