关键词: 空间地图投影 空间斜圆锥投影 侧视区域中心线投影 投影变形

Abstract: The problem of space map projection of side-glance radar imagery of satellite is researched in this paper. As the dynamic mathematical foundation, a kind of Space Oblique Conic Projection (SOC) is specifically designed for the side-glance radar imagery of satellite. The geometric model of SOC is considered firstly, and the groundtrack projection of the central line of side-glance region is established secondly based on this model, and then the formula of space oblique conic projection is deduced and the projection distortion is discussed. As an example, the side-glance radar imagery data of ocean satellite is considered, and a special space oblique conic projection model is obtained finally.

Key words: Space map projection, Space oblique conic projection, the groundtrack projection of the central line of side-glance region, projection distortion