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High-efficiency mission planning and distribution system of the land observation satellites

机译:陆地观测卫星的高效任务计划和分配系统

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The mission planning of earth satellite observation generally refers to the optimized use of satellites' payloads. According to relevant experiences in project construction, this paper puts forth the concept of the integrated hub-style mission planning on the basis of consumers' satisfaction and data's timeliness. This concept takes the ground processing center as the integrated service point, and data demands of difference levels of users as the driving force. It fully considers the practical problems like station resources construction lag and data transmission link frequency interference conflicts, reasonably plan the satellite payloads data reception stations resources, monitor and control resources and data processing resources, so as to implement the remote sensing data from a data request, overall planning, telecontrol, data acquisition, data processing and the unified distribution in the whole process of mission planning model. This model effectively solves the problems like the difficulty to match single satellite programming model with user demands, and the low efficiency of resource use. Besides, the paper seeks to explore relevant elements, technology and techniques which are necessary in such mission planning. The author thinks that from the vintage point of systems engineering, the commercialization of satellite observation products requires the full-cycle integrated mission planning that covers the period from the beginning of a user's order to the distribution of final data products, among which dispatching satellites' payloads is only one of important links. During the cycle, activities and constraints related to land support systems and other elements should also be taken into consideration. The comprehensive consideration including points of data acquisition, processing, archiving and distribution will make mission planning more complicated, which needs to be studied theoretically and practically. The full-cycle and integrated hub-style mission planning coordinates with national policy of civil remote sensing satellites. It is of great significance to deliver remote sensing products with high quality and high timeliness to every professional user through remote sensing data planning and major processing points, which demonstrates in two aspects. The first aspect is that it helps to achieve the win-win situation where different users get what they want and the state reduces investment in this field. The other one is that it is facile to monitor various satellite data and in return promote technology advancement of satellite processing and construction, which eventually stimulates the development and progress of aerospace remote sensing technology.
机译:地球卫星观测的任务计划通常是指对卫星有效载荷的优化利用。根据项目建设中的相关经验,本文基于消费者的满意度和数据的及时性,提出了综合枢纽式任务计划的概念。该概念以地面处理中心为综合服务点,以用户不同层次的数据需求为动力。充分考虑站资源建设滞后,数据传输链路频率干扰冲突等实际问题,合理规划卫星有效载荷数据接收站资源,监控资源和数据处理资源,从数据请求中实现遥感数据,总体规划,遥控,数据采集,数据处理和任务分配模型整个过程中的统一分配。该模型有效解决了单颗卫星编程模型难以满足用户需求,资源利用效率低的问题。此外,本文力图探索这种任务计划中必不可少的相关要素,技术和技巧。作者认为,从系统工程的角度来看,卫星观测产品的商业化需要全周期的综合任务计划,该计划涵盖从用户订购开始到最终数据产品分发的整个期间,其中包括调度卫星有效载荷只是重要的链接之一。在周期中,还应考虑与土地支持系统和其他要素有关的活动和制约因素。包括数据采集,处理,归档和分发等方面的综合考虑将使任务计划更加复杂,这需要在理论和实践上进行研究。全周期和综合的枢纽式任务计划与民用遥感卫星的国家政策相协调。通过遥感数据规划和主要处理要点向每个专业用户提供高质量,高及时性的遥感产品具有重要意义,这体现在两个方面。第一个方面是,它有助于实现双赢局面,即不同的用户获得他们想要的东西,而国家减少对该领域的投资。另一个是,它易于监视各种卫星数据,并反过来促进卫星处理和建造的技术进步,从而最终刺激了航空遥感技术的发展和进步。

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