对地观测卫星成像区域仿真研究

为了发挥对地观测卫星在大面积、实时、快速获取地表数据方面的优势,用户需要事先掌握对于自己感兴趣区域上空的卫星过境情况和成像能力。本文通过对卫星轨道预报模型与算法、卫星地面成像区域边界轨迹计算模型和算法的探讨与实践,得到了一些对卫星成像区域仿真有益的经验。试验证明,对于无侧视情况下,使用较旧的卫星轨道根数来计算卫星成像区域,仍能满足用户对于成像区域预报的精度要求。

Research On Imaging Area Simulation Of Earth Observation Satellite

In order to play advantage of the earth observation satellite in large area,in real-time,and quickly get terrain data,users need to know when the satellite transit over their interesting area and the satellite’s imaging ability.This article discusses satellite orbit forecast model and algorithm,satellite sensor imaging simplified model,and satellite imaging regional boundary trajectory calculation model and algorithm,and obtains some valuable experience about regional simulation of satellite imagery.For no side-looking imaging mode,it still have enough accuracy for predicting the imaging area by using the older satellite TLE data to calculate satellite imaging area boundary.