共查询到19条相似文献,搜索用时 78 毫秒
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介绍了激光雷达在国外空间飞行器交会对接中的应用情况,描述了几种典型的激光交会雷达系统,给出设备组成、工作原理、主要技术指标,并对其性能进行了简单的分析、比较,从中归纳出在交会对接应用中激光雷达实现测量的技术途径和发展趋势。 相似文献
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本文简要地介绍激光雷达的工作原理及其在交会对接中的应用,美国、西德、日本等开发的交会对接用激光雷达的主要性能,参数,日本宇宙开发事业团和宇宙科学研究所委托三菱电机和日本电器公司研制的激光雷达及其在实验、观测用小型空间自由飞行器(SFU)和技术试验卫星Ⅶ(ETS-Ⅶ)上的应用计划。 相似文献
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《信息安全与通信保密》2012,(7):8-8
6月18日下午14时,搭载着3位航天员的神舟九号飞船与在轨运行的火官一号目标飞行器顺利“牵手”,这是天宫一号继去年与神舟八号成功对接后,与神舟几号载人飞船首次实现自动交会对接。交会对接成功,意味着航天员通往火官一号太空新家的生命通道就此连接,标志着我网成功实现首次裁人空间交会对接。 相似文献
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本文综述了用于空间交会和对接的光学敏感器的技术发展。着重讨论了激光对接系统、CCD成像敏感器和PSD敏感器。提出了“敏感器包”的概念。 相似文献
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分布式航天器队形保持、交会对接等任务需要实时、高精度地测量航天器间相对状态。在分析国内外研究现状的基础上,提出分布式航天器间相对状态测量的方法。对同步组网方式、相对测距方法、抑制泄漏干扰和多址干扰等航天器间相对测量的关键技术问题进行了研究。 相似文献
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Guillermo Ortega 《Telematics and Informatics》1995,12(3-4):213-227
Assembling large structures in space requires the ability to manage rendezvous and docking operations. In future these techniques will be required for the gradual build up of big telecommunications platforms in geostationary orbit. This paper discusses the use of fuzzy logic to model and implement a control system for the docking/berthing of two satellites in geostationary orbit. The system mounted in a chaser vehicle determines the actual state of both satellites and generates torques to execute manoeuvres to establish the structural latching. The paper describes the proximity operations to collocate the two satellites in the same orbital window, the fuzzy guidance and navigation of the chaser approaching the target, and the final fuzzy berthing. The fuzzy logic system represents a knowledge-based controller that realizes the closed-loop operations autonomously, replacing the conventional control algorithms. The goal is to produce smooth control actions in the proximity of the target and during the docking to avoid disturbance torques in the final assembly orbit. The knowledge of the fuzzy controller consists of a data base of rules and the definitions of the fuzzy sets. The knowledge of an experienced spacecraft controller is captured into a set of rules forming the rules data base. 相似文献
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《Telematics and Informatics》1988,5(3):179-185
Rendezvous during the unmanned space exploration missions, such as a Mars Rover/Sample Return, will require a completely automatic system from liftoff to docking. A conceptual design of an automated rendezvous, proximity operations, and docking system is being implemented and validated at the Johnson Space Center (JSC).The emphasis of this article is on the progress of the development and testing of a prototype system for control of the rendezvous vehicle during proximity operations that is currently being developed at the JSC. Fuzzy sets are used to model the human capability of common sense reasoning in decision-making tasks and such models are integrated with expert systems and engineering control system technology to create a system that performs comparably to a manned system. 相似文献
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