China's Lunar and Deep Space Exploration Program for the Next Decade (2020-2030)

China has carried out four unmanned missions to the Moon since it launched Chang'E-1, the first lunar orbiter in 2007. With the implementation of the Chang'E-5 mission this year, the three phases of the lunar exploration program, namely orbiting, landing and returning, have been completed. In the plan of follow-up unmanned lunar exploration missions, it is planned to establish an experimental lunar research station at the lunar south pole by 2030 through the implementation of several missions, laying a foundation for the establishment of practical lunar research station in the future. China successfully launched its first Mars probe on 23 July 2020, followed in future by an asteroid mission, second Mars mission, and a mission to explore Jupiter and its moons.     

China's Future Missions for Deep Space Exploration and Exoplanet Space Survey by 2030

Four future missions for deep space exploration and future space-based exoplanet surveys on habitable planets by 2030 are scheduled to be launched. Two Mars exploration missions are designed to investigate geological structure, the material on Martian surface, and retrieve returned samples. The asteroids and main belt comet exploration is expected to explore two objects within 10 years. The small-body mission will aim to land on the asteroid and get samples return to Earth. The basic physical characteristics of the two objects will be obtained through the mission. The exploration of Jupiter system will characterize the environment of Jupiter and the four largest Moons and understand the atmosphere of Jupiter. In addition, we further introduce two space-based exoplanet survey by 2030, Miyin Program and Closeby Habitable Exoplanet Survey (CHES Mission). Miyin program aims to detect habitable exoplanets using interferometry, while CHES mission expects to discover habitable exoplanets orbiting FGK stars within 10 pc through astrometry. The above-mentioned missions are positively to achieve breakthroughs in the field of planetary science.     

中国航天发展历程与启示——2009年空间环境与材料科学论坛大会报告

文章指出我国在应用卫星与卫星应用、载人航天和深空探测三大航天领域取得了巨大成就,为中国的经济、社会发展做出了巨大贡献,也展示了中国的综合实力。经过几十年的发展,中国进入太空能力得到了很大的发展,但在太空利用能力和太空控制能力的建设上还有更大的发展空间。随着我国航天事业的发展,用户对航天器的高可靠、长寿命的要求迫切,作为航天器功能实现的技术基础,环境、材料等基础研究工作应该去适应这种发展需求,加快基础能力的建设与发展。     

深空辐射环境及其效应的分析与比较

深空辐射环境对深空探测活动将带来严重的威胁。文章首先对深空辐射环境及效应进行了分析,接着对月球、火星、木星和土星等不同星体的辐射环境及效应进行了详细的探讨及比较。文章得到的结论可为深空探测器的设计和航天员的防护设计提供重要的指导与帮助。     

一种用于深空探测的Chirp变换频谱分析仪设计与实现

根据深空探测对频谱分析仪抗辐射、高分辨率、低功耗的需求,研究一种基于Chirp变换的高分辨率频谱分析仪设计及其实现.利用中心频率为1GHz、带宽为400MHz、色散时间为10μs的声表面波滤波器,提出了一种模拟和数字相结合的高分辨率频谱分析仪设计方案,并搭建原理实验系统完成了实测验证,其分析带宽为400MHz,频率分辨率达到152kHz,功耗约为3.6W.分析了压缩线器件非理想特性对频率分辨率的影响,利用实测压缩线频率响应特性获得幅度和相位补偿曲线,对展宽线信号进行幅相失配补偿.仿真结果表明,该补偿方法可将频率分辨率提高至108kHz.     

中国月球探测进展（2011-2020年）

回顾2011至2020年10年来中国月球探测的进展,重点介绍嫦娥三号和嫦娥四号任务工程实施情况以及取得的主要科学探测成果,展望中国月球和行星探测的未来发展.     

中国空间探测领域40年发展

中国空间科学学会成立的40年,是中国空间探测逐渐走进世界舞台的40年,空间探测极大推动了空间科学和相邻学科的发展,也影响到经济、军事和日常生活诸多方面.本文简要回顾了从空间探测专业委员会成立的1980年至今,中国空间探测领域的主要发展历程,包括探空火箭、高空气球、科学卫星、月球与行星探测、载人航天空间探测、遥感卫星地面站等主要项目、进展和所取得的成果,对未来若干年空间探测的发展进行了展望.     

High-adaption locomotion with stable robot body for planetary exploration robot carrying potential instruments on unstructured terrain

There is a strong demand for Planetary Exploration Mobile robots (PEMRs) that have the capability of the traversability, stability, efficiency and high load while tackling the specialized tasks on planet surface. In this paper, an electric parallel wheel-legged hexapod robot which has high-adaption locomotion on the unstructured terrain is presented. Also, the hybrid control framework, which enables robot to stably carry the heavy loads as well as to traverse the uneven terrain by utilizing both legged and wheeled locomotion, is also proposed. Based on this framework, robot controls the multiple DOF leg for performing high-adaption locomotion to negotiate obstacles via Gait Generator (GG). Additionally, by using Whole-Body Control (WBC) of framework, robot has the capability of flexibly accommodating the uneven terrain by Attitude Control (AC) kinematically adjusting the length of legs like an active suspension system, and by Force/torque Balance Control (FBC) equally distributing the Ground Reaction Force (GRF) to maintain a stable body. The simulation and experiment are employed to validate the proposed framework with the physical system in the planetary analog environments. Particularly, to smoothly demonstrate the performance of robot transporting heavy loads, the experiment of carrying 3-person load of about 240 kg is deployed.     

空间探测烧蚀防热材料应用及趋势

综述了国内外空间探测器烧蚀防热材料的种类及其应用情况,美国主要包括高密度酚醛/玻璃钢、蜂窝增强烧蚀防热材料、PICA及PICA-X以及高密度碳酚醛材料等,国内则主要包括酚醛/尼龙、蜂窝增强烧蚀防热材料和NF材料,介绍了这些材料所应用的探测器、气动加热环境、防热材料性能和防热结构成型技术。总结了美国空间探测防热材料研制中出现的两次烧蚀异常及导致的探测器选材变化,可见防热材料与热环境耦合关系复杂。同时介绍了我国针对防热材料抵御异常损伤开展的部分工作。最后对空间探测防热材料的应用与发展做出了展望。     

低速溅射小行星表面采样的动力学仿真

开发了适用于小行星环境的大规模三维离散元程序DEMBody,针对低速射弹溅射表层风化层的小行星采样方案,仿真了相同质量不同形状的射弹在微重力环境下垂直射入颗粒床的过程,研究了溅射物质在采样器中的运动历程及最终收集质量与射弹形状的关系。结果表明,90°锥形射弹的采样效率最高。