摘要
2014年11月1日,月地高速再入返回飞行器准确着陆在内蒙古四子王旗预定区域,标志着探月三期再入返回试验任务取得了圆满成功,标志着中国已全面突破和掌握航天器以接近第二宇宙速度的高速再入返回关键技术,为确保嫦娥五号任务顺利实施和探月工程持续推进奠定了坚实基础.飞控支持系统对卫星飞控期间的飞控策略制定、仿真验证和设计方案优化起到了关键作用.本文介绍基于集成数字化的月地高速再入返回飞行器飞控支持系统的原理及体系结构设计,并对其中处理器加速模拟、虚拟芯片建模、自动测试脚本、通用人机交互、数据动态辅助判读等关键技术进行剖析,最后给出了飞控支持系统的实用效果.经过在轨实际验证,飞控支持系统通过快速精准预示,解决了卫星飞控任务约束条件复杂、决策困难等问题,并为后续卫星飞控系统的发展积累了丰富的理论和工程经验.
Circumlunar return and reentry spacecraft accurately landed within the predetermined area in SiZiWangQi, Inner Mongolia on Nov. 1, 2014, which marks the successful completion of the reentry test in the third phase of Chang＇E lunar exploring project, and indicates that the key technology of deep space reentry return, as the speed of the spacecraft is close to the second cosmic velocity, is fully mastered by China. It ensures the smooth implementation of Chang＇E-5 program and lays a solid foundation of the lunar exploring project. During the flight control of circumlunar return and reentry spacecraft, the integrated digital flight control support system （IDFCS） is played a key role in ether flight control strategy development, simulation ＆ validation and design optimization. In this paper, the principle and architecture design of the IDFCS for Spacecraft is proposed, and the key points of the system, such as acceleration of processor simulation, virtual chip modeling, automatic test script, general user interface, data dynamic interpretation, are analyzed. Finally, the practical effect of the IDFCS for circumlunar return and reentry spacecraft is present. The actual in-orbit validation shows that some of the satellite flight control problems, such as the complexity of constraints, the difficulty of strategy determination, are solved by the present system, and rich experience in both theory and engineering is accumulated for the subsequent development of the satellite flight control system.
出处
《中国科学：技术科学》
EI
CSCD
北大核心
2015年第3期284-292,共9页
Scientia Sinica(Technologica)
基金
国家中长期科技发展规划重大专项资助项目
关键词
再入返回
飞控支持
数学仿真
return and reentry, flight control support, mathematical simulation
