CAJ | 학술논문

视景仿真可用于空间望远镜设计、分析和检测。基于坐标变换原理和等角投影法计算了望远镜随着空间载体运动指向不同观测区域时的视场边界，利用星表数据和Matlab地图数据实现了空间望远镜对空和对地观测的二维动态视景仿真，获得了与理论经验相符的仿真结果。结果表明，当空间望远镜指向高纬度区域时等距圆柱投影星图和地图上的圆形视场出现失真，纬度越高，失真越大；对地观测时，地面圆视场边界的地心张角随空间载体高度的增加而增大。应用该仿真方法为某空间望远镜外场实验添加星空背景，效果良好。对在地面上检测空间望远镜工作性能，模拟空间望远镜的工作环境具有一定意义。
시경방진가용우공간망원경설계、분석화검측。기우좌표변환원리화등각투영법계산료망원경수착공간재체운동지향불동관측구역시적시장변계，이용성표수거화Matlab지도수거실현료공간망원경대공화대지관측적이유동태시경방진，획득료여이론경험상부적방진결과。결과표명，당공간망원경지향고위도구역시등거원주투영성도화지도상적원형시장출현실진，위도월고，실진월대；대지관측시，지면원시장변계적지심장각수공간재체고도적증가이증대。응용해방진방법위모공간망원경외장실험첨가성공배경，효과량호。대재지면상검측공간망원경공작성능，모의공간망원경적공작배경구유일정의의。
Visual simulation is useful for designing, analyzing and testing a space-telescope on the ground. Based on the coordinate transformation theory and the equal-angle projection method, visible boundary of the telescope was deduced for different orientation, and the two-dimension visual simulation was carried out using a real star catalog and the world coast line data. Reasonable results show that when the space-telescope is pointing to the high latitude area, a distortion of the round visible boundary appears in the Equidistant Cylindrical Projection style map chart. And the visible area on the earth surface is expanded when the height of the space-carrier increases. The simulation was used to imitate the celestial background in a real testing of a space-telescope outdoor. It′s useful in testing and providing space environment for space-telescope on the ground.