国际对接系统标准探究

根据对接技术发展、国际合作和空间救援等现实需求,国际空间站成员确定了一项通用对接接口标准,即国际对接系统标准接口定义文件(IDD)。该标准是基于异体同构周边式对接机构成功经验和弱撞击对接技术提出的,详细描述了对接接口和对接性能要求。基于此背景,简要回顾了对接机构的发展历史,叙述了国内外主要对接机构的技术特点,对标准的主要内容和应用情况进行了分析论述,并提出我国应结合载人航天工程需求参与国际标准的制定。     

An optimal one-way cooperative strategy for two defenders against an attacking missile

This paper investigates a cooperative strategy for protecting an aerial target.The problem is solved as a game among four players(a target,two defenders,and a missile).In this scenario,the target launches two defenders(defender-1 and defender-2)simultaneously,to establish a oneway cooperation system(OCS)against an attacking missile.A new optimal evasion strategy for the target is also derived.During the engagement,the target takes into account the reaction of the attacking missile,and guides defender-1 to the interception point by receiving information from defender-1.Depending on the control effort of the target,defender-2 can choose appropriate launch conditions and use very limited maneuvering capability to intercept the missile.For adversaries with first-order dynamics,simulation results show that the OCS allows two defenders to intercept the missile.During the engagement,even if one defender or communication channel is broken,the OCS still allows an interception to be made,thus increasing the target’s survivability.     

基于认知云的无人机群组信息对抗系统

基于认知云的无人机群组信息对抗系统由长航时、低成本的电子战无人机群组和云计算网络构成。侦察无人机负责有限范围内的信息侦收，云计算网络融合无人机群感知结果，生成广域信息态势，动态制定系统层对抗策略，调度攻击无人机实施电磁频谱压制或信息接入攻击，同时评估对抗效能，实现信息攻防闭环。无人机群组抵近工作，可显著降低载荷设计复杂度，实现小型化、低功耗与有效性的统一设计。     

V-BLAST BASED LDPC-CODED RELAY COOPERATION

An efficient LDPC-coded multi-relay cooperation architecture is proposed based on virtual vertical Bell Labs layered space-time （V-BLAST） processing for uplink communication, where minimum-mean-square-error （MMSE） and BP-based joint iterative decoding based on the introduced muhi-layer Tanner graph are effectively de- signed to detect and decode the corrupted received sequence at the destination. By introducing V-BLAST transmis- sion to the coded multi-relay cooperation, relays send their streams of symbols simultaneously, which increases the data rate and significantly reduces the transmission delay. The theoretical analysis and numerical results show that the new LDPC coded cooperation scheme outperforms the coded non-cooperation under the same code rate, and it also achieves a good trade-off among the performance, signal delay, and the encoding complexity associated with the number of relays. The performance gain can be credited to the proposed V-BLAST processing architecture and BP-based joint iterative decoding by the introduced multi-layer Tanner graph at a receiver-side.     

“校企共建”型校内生产性实训基地建设的研究与实践

校企共建校内生产性实训基地是高等职业教育深化内涵建设的重要内容之一。作者对高职院校校内生产性实训基地的内涵、建设原则进行了阐述。并以长沙航空职院与企业共建电子产品生产性实训基地建设为例进行实证研究。     

论高职网络专业簇形课程体系的构建

课程体系的构建问题是高职专业教学的核心问题,是高职教育课程改革的基础,是高职教育领域中的一切改革成果的缩影和归宿,本文就校企合作模式下高职网络专业的课程体系构建提出了一些新的想法和思路。     

高职院校基于校企合作教学模式研究

高职院校“校企合作”教学模式需要高职院校和企业全过程、全方位合作。目前高职院校“校企合作”教学模式还不够完善,需要学校和企业对人才培养目标、课程体系、教学内容、教学方法、考核体系、质量保证管理体系等方面进行基于“校企合作”的规划和设置,形成全过程、全方位的高职院校“校企合作”教学模式。     

基于 ABMS的无人机编队协同制空任务效能评估

无人机是海空作战的重要力量,制空作战是未来无人机的重要任务之一。为研究无人机编队协同制空作战的制胜机理,评估无人机编队协同制空作战效能:首先,对无人机编队协同制空任务进行分析,明确典型作战过程;然后,采用基于 Agent的建模与仿真(Agent-basedmodelingandsimulation,ABMS)方法,构建攻击型无人机、预警型无人机和空空导弹的 Agent模型,开展多无人机协同制空作战仿真和效能分析。结果表明,无人机探测距离、编队内攻击型无人机的数量,以及编队内有无预警型无人机,这些都将对作战效能产生重要影响,该结论可为无人机协同作战运用提供参考。     

基于职业能力的高职酒店管理专业培养模式构建

重视学生职业能力的培养，学生才能真正成为人才，企业才会真正满意。某学院酒店管理专业一直以来始终坚持以培养学生的职业能力为核心；依靠学校和酒店企业二个平台，以学校教育为：主，以酒店培训为辅；构建以职业能力培养为核心的课程体系。通过积极推进教学改革的实践，该学院酒店管理专业取得了一定的成效。     

Sino-Latin American space cooperation: A smart move

Sino-Latin American space cooperation has grown in the past several years, contributing to debates over China’s rising influence in the region. Much of what has been written about this phenomenon is overly simplistic and denotes a lack of understanding of the interplay between the domestic and the international when decisions of international cooperation are taken. This paper argues that calculations of both domestic and international interest are important in Sino-Latin space relationships, with the former of particular importance to Latin American countries. It explores these interests as demonstrated in the cooperative programs of four Latin American countries. It concludes that, while the US relationship is not a major factor in their decisions to cooperate or not with China, the USA could benefit from a greater understanding of this phenomenon to expand its relationships with the emerging space nations of the region to its benefit.