陆地生态系统碳监测卫星自主任务规划研究  

Research on Autonomous Task Planning for Terrestrial Ecosystem Carbon Inventory Satellite

作　　者：黄缙[1] 蒋昱[1] 莫凡 张莎莎 姚鑫雨 张新伟[1] 刘洁[2] 周剑敏[2] 刘益铭 张少雄 HUANG Jin;JIANG Yu;MO Fan;ZHANG Shasha;YAO Xinyu;ZHANG Xinwei;LIU Jie;ZHOU Jianmin;LIU Yiming;ZHANG Shaoxiong(Institute of Remote Sensing Satellite,China Academy of Space Technology,Beijing 100094,China;Beijing Institute of Control Engineering,Beijing 100094,China;Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)

机构地区：[1]中国空间技术研究院遥感卫星总体部,北京100094 [2]北京控制工程研究所,北京100094 [3]北京空间飞行器总体设计部,北京100094

出　　处：《航天器工程》2024年第2期1-8,共8页Spacecraft Engineering

摘　　要：低轨遥感卫星往往以全球或全国范围内的特定地物为探测目标。为提高卫星在轨运行的自主性,文章提出了一种面向地物目标属性的遥感卫星自主任务规划方法。首先外推出预报点90 min后的星下点经纬度,并根据星载地图和太阳高度角,得到预报点的阳照/阴影、陆地/海洋、境内/境外属性。对地物目标属性信息进行平滑处理后,根据各载荷的地物目标属性,识别出各载荷的工作任务时间段,可实时实现提前约1个轨道圈的载荷自主任务规划。Remote sensing satellites in low earth orbit(LEO)usually target specific ground-objects worldwide or inside China.In order to improve autonomy of satellite operations in orbit,a method of autonomous task planning for remote sensing satellites based on ground-object properties is proposed.Firstly,the longitude and latitude of the nadir point after 90 minutes is extrapolated and forecasted.Then the lighting/shadow,land/ocean and domestic/overseas properties of the forecasted nadir point are obtained using the on-board map and the solar elevation angle.Afterwards,the time table of every payload is generated based on the smoothed ground-object properties.Autonomous task planning for every payload can be performed about one-revolution in advance.

关 键 词：自主任务规划 地物目标属性 星载地图 太阳高度角 阳照/阴影属性 陆地/海洋属性 境内/境外属性 

分 类 号：V474.26[航空宇航科学与技术—飞行器设计] V529.1