中文摘要：

一般卫星对地观测任务规划主要是指对卫星有效载荷的优化使用，关注数据的采集，有时候也考虑数据下传。本文则从系统工程的角度出发，探讨了从用户提出需求到取得观测数据产品的全周期任务规划概念，其中数据的采集只是整个规划周期中的一个环节，任务规划还需另外考虑与用户满意程度密切相关的地面数据处理和分发等支持活动的规划调度，在此基础上初步探索了实现全周期任务规划的要素和相关技术方法。

英文摘要：

Mission planning for earth observation by Satellite is usually indicated as the optimization of on- board payload utilization which mainly considers the data coUection and downlink procedure. While this paper discusses a whole cycle mission planning concept from the view of system engineering, of which data coUection is only an important section. The whole planning period need also to consider the ground support operations such as data processing and data dissemination, which are closely related to the user＇s satisfaction degree. The article also tries to find out the essentials and techniques for realizing the whole cycle mission planning.