摘要
在应用坐标系变换方法实现星载TDICDD相机星下点扫描像移模型的基础上,将45°旋转扫描反射镜(以下简称45°镜)用于TDICCD相机成像以扩大扫描视场。首先深入分析了45°镜的成像特性及K镜消像旋的原理,并利用Matlab对K镜消像旋效果进行仿真,验证了加入K镜的合理性。然后利用45°镜及K镜对光矢量的转换矩阵,建立了TDICCD相机方位扫描时的像移模型,为后续像移分析提供理论依据。
The 45-degree-rotated scanning mirror （RS mirror） was employed into the field of Wide-of- View （FOV） imaging with a scanning TDICCD camera by using the Coordinate Transformation method of building sub-satellite point image motion model with the Satellite Borne TDICCD camera. The imaging characteristics of the RS mirror and the Offsetting Image Rotation principle of the K Mirror were fully discussed. The effect diagram after offsetting image rotation with the K Mirror was further simulated to verify the rationality of K Mirror. Based on the light vector transformation matrix of the RS Mirror and K Mirror, the image rotation model was finally derived when bearing scanning TDICCD camera was used, which could support the theoretical foundation of subsequent image rotation analysis.
出处
《红外与激光工程》
EI
CSCD
北大核心
2014年第6期1823-1829,共7页
Infrared and Laser Engineering
关键词
TDICCD
像旋
方位扫描
像移
TDICCD
image plane rotation
azimuthally photography
image motion
