空间两维指向摆镜的成象分析

OPTICAL ANALYSIS OF SPACE TWO-AXIS POINTING MIRROR

本文分析了航天摄影相机的指向摆镜统二轴摆动时的成家关系，讨论了摆镜引起的象倾斜及象倾斜角与摆镜摆角的关系，并论述了象倾斜的校正方法；本文还讨论了摆镜对地面的扫描轨迹和覆盖范围．

Usually the field of view of an aerocamera is very narrow,in order to survey objects out of the viewing field,people often use a pointer which can tilt and point to other areas. When the pointer rotates around axes that aren't parallel to the pointer'S surface,the image rotates in the image plane ' too. This paper discusses the relation between the image rotating angle and the pointer'S elevation and azimuth, besides it also sets forth the de - rotating methods. The pointer Is scanning track and photographable area are also discussed in this paper.##BSong Chuntao was born in April in 1 9 7 3. In 1 9 9 3, she received B. S.degree from the Precision instrument & Engineering Department ofTianjin University. Then she went to Xi I an institute of Optics andPrecision Mechanics (XIOPM ), Academia Sinica, to study for a masterdegree. In 1 9 9 6, she got master degree and at the same time won thescholarship from Daheng Group. Now she continues her study as a Ph. D.candidate at XIOPM. Her interest is various, including applied optics,Optical -- electronic information processing, computer technology, digitalimage processing,and computer vision.