摘要
依据对地观测小卫星的应用特点,选择太阳同步圆轨道,在轨道六根数的基础上分析轨道设计时轨道高度与轨道倾角、交点周期、视场角与对地观测幅宽、空间分辨率的关系以及降交点地方时和升交点赤经的确定方法;最后利用STK(卫星仿真工具包)仿真软件对轨道高度为560.92 km以及502.59 km的太阳同步回归轨道卫星进行指定目标观测的仿真。
Sun-synchronous round orbit was chosen according to the characteristics of small earth observa- tion orbit. The relations between orbital altitude and inclination, nodal period, FOV and swath width and spatial resolution were analyzed on the basis of six general orbital elements. The determination method of descending node and longitude of ascending node were presented. At last, the STK （Satellite Tool Kit） simulation software was used to analyze designated target observation performances of the satellite whose or- bital altitude is 560.92 km and 502.59 km.
出处
《四川兵工学报》
CAS
2013年第7期145-148,共4页
Journal of Sichuan Ordnance
关键词
太阳同步轨道
轨道设计
指定目标观测
覆盖性能
sun-synchronous orbit
orbit design
designated target observation
coverage performance
