【摘要】 多光谱CCD相机的技术特点是利用不同遥感谱段获得同一目标图像,通过不同谱段图像的组合,获取地物目标的物理特性。为了使多光谱CCD相机同时还具备测绘功能,能对获取的地物目标进行精确定位,发射前需要在实验室对多光谱CCD相机的几何参数进行精确标定。多光谱CCD相机几何标定是相机研制过程中的关键环节,是确定相机在惯性坐标系中姿态的必不可少的关键技术。本文着重介绍了多光谱CCD相机几何标定设备、标定方法和标定精度。多次标定结果表明:主距的标定精度优于10μm(1σ),主点的标定精度优于2.1μm(1σ),畸变的标定精度优于1.5μm(1σ),满足多光谱CCD相机几何标定精度的要求。更多还原

【Abstract】 Technical characteristics of multispectral CCD camera obtains the same target by different remote sensing multispectral image,it gets the physical characteristics of ground object target through a combination of the different spectrum images.In order to make the multispectral CCD camera having mapping function at the same time,getting accurate position of the ground object target,geometric parameters of multispectral camera is calibrated accurately before launch in the laborratory.The geometric calibration of multispectral CCD camera is the key link in the development of camera,it is the key technology of determining the attitude of camera in the inertial coordinate system.Calibration results show that the focal calibration accuracy is less than 10μm(1σ),the point calibration accuracy is less than 2.1μm(1σ)and the distortion calibration accuracy is less than 1.5μm(1σ),the method is fit for the request of accuracy geometric calibration of multispectral CCD camera.更多还原