A New Generation of Intelligent Mapping and Remote Sensing Scientific Test Satellite Luojia-301

With the continuous improvement of the performance and the increasing variety of optical mapping and remote sensing satellites,they have become an important support for obtaining global accurate surveying and mapping remote sensing information.At present,optical mapping and remote sensing satellites already have sub-meter spatial resolution capabilities,but there is a serious lag problem in mapping and remote sensing information services.It is urgent to develop intelligent mapping and remote sensing satellites to promote the transformation and upgrading to real-time intelligent services.Firstly,based on the three imaging systems of the optical mapping and remote sensing satellites and their realization methods and application characteristics,this paper analyzes the applicable system of the intelligent mapping and remote sensing satellites.Further,according to the application requirements of real-time,intelligence,and popularization,puts forward the design concept of integrated intelligent remote sensing satellite integrating communication,navigation,and remote sensing and focuses on the service mode and integrated function composition of intelligent remote sensing satellite.Then expounds on the performance and characteristics of the Luojia-301 satellite,a new generation of intelligent surveying and mapping remote sensing scientific test satellite.And finally summarizes and prospects the development and mission of intelligent mapping remote sensing satellites.Luojia-301 satellite integrates remote sensing and communication functions.It explores an efficient and intelligent service mode of mapping and remote sensing information from data acquisition to the application terminal and provides a real service verification platform for on-orbit processing and real-time transmission of remote sensing data based on space-ground internet,which is of great significance to the construction of China’s spatial information network.

珞珈三号01星在轨处理技术及验证

遥感卫星在轨处理技术是推动遥感技术实现实时智能服务的核心环节。针对星上资源受限环境引起的系列处理难题及遥感数据实时处理与信息提取需求,本文首先构建了任务驱动的卫星遥感数据在轨处理框架,以任务需求为核心并协同星地资源建立基于感兴趣区域的星上处理技术体系;然后,面向不同任务层级和应用场景,给出了以位置信息为驱动的基础在轨处理模式、以目标/场景内容和变化事件为驱动的智能处理模式;最后,论述了适配星上资源受限环境的在轨处理关键算法,基于珞珈三号01星星上处理应用程序,验证了典型算法的在轨处理效果。在任务驱动和星地协同机制下,实现了在轨高精度定位、多类型影像产品快速生成、静动态目标信息实时提取及静态和动态影像高倍率近实时压缩。在轨处理显著提高了传统地面处理的效率,能够有效支撑后续卫星遥感实时智能服务。

新一代智能测绘遥感科学试验卫星珞珈三号01星

光学测绘遥感卫星的性能不断提升,种类日益丰富,已经成为获取全球精准测绘遥感信息的重要支撑。当前光学测绘遥感卫星已具备亚米级的空间分辨能力,但测绘遥感信息服务存在严重的滞后问题,亟须发展智能测绘遥感卫星,向实时智能服务转型升级。本文首先基于光学测绘遥感卫星3种成像体制及其实现方式和应用特点,分析智能测绘遥感卫星的适用体制,进一步面向实时化、智能化和大众化的应用需求,提出通导遥(通信、导航、遥感)一体化智能遥感卫星的设计构想,重点分析智能遥感卫星的服务方式及一体化功能组成;然后,阐述新一代智能测绘遥感科学试验卫星珞珈三号01星的性能与特点;最后,对智能测绘遥感卫星的发展和使命进行总结与展望。珞珈三号01星集遥感与通信功能于一体,探索了从数据获取到应用终端的测绘遥感信息高效智能服务模式,为遥感数据基于天地互联网的在轨处理与实时传输提供了真实的服务验证平台,对我国空间信息网络的建设具有重大意义。