基于重力加速度的自对准算法在摇摆台上的验证

摇摆基座条件下陀螺和加速度计测量的地球自转角速度和重力加速度受到了摇摆运动的干扰,无法根据陀螺和加速度计的输出直接获得初始姿态矩阵。针对这一问题,通过验证实验证明了基于重力加速度的对准算法的有效性,并依据实验结果从理论上对该方法的对准误差进行了分析,提出了进一步提高对准精度的措施。     

Dynamic inventory management with cash flow constraints

In this article, we consider a classic dynamic inventory control problem of a self‐financing retailer who periodically replenishes its stock from a supplier and sells it to the market. The replenishment decisions of the retailer are constrained by cash flow, which is updated periodically following purchasing and sales in each period. Excess demand in each period is lost when insufficient inventory is in stock. The retailer's objective is to maximize its expected terminal wealth at the end of the planning horizon. We characterize the optimal inventory control policy and present a simple algorithm for computing the optimal policies for each period. Conditions are identified under which the optimal control policies are identical across periods. We also present comparative statics results on the optimal control policy. © 2008 Wiley Periodicals, Inc. Naval Research Logistics 2008     

海军基地防御战斗中的电子对抗

从近年来的几场高技术局部战争来看,在未来高技术局部战争中,交战双方都将广泛使用电子战手段,谁拥有了"制电磁权",谁就能掌握战争的主动权.以近年的几次高技术局部战争为背景,对电子战在海军基地防御战斗中的使用和战术运用情况进行了研究,分析了在海军基地防御中电子战的作战组织形式及特点,并提出了一些建议.     

Probabilistic solution and bounds for serial inventory systems with discounted and average costs

We consider the infinite horizon serial inventory system with both average cost and discounted cost criteria. The optimal echelon base‐stock levels are obtained in terms of only probability distributions of leadtime demands. This analysis yields a novel approach for developing bounds and heuristics for optimal inventory control polices. In addition to deriving the known bounds in literature, we develop several new upper bounds for both average cost and discounted cost models. Numerical studies show that the bounds and heuristic are very close to optimal.© 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007     

对消防部队开展基地化训练的思考

在论述公安消防部队开展基地化训练必要性和迫切性的基础上,分析了当前在建设消防部队训练基地和开展基地化训练过程中存在的问题,提出了消防训练基地建设、以训练基地为平台实施基地化训练、开展网上训练为基地化训练奠定基础的基本构思,并剖析了实施基地化训练应注意的问题。     

兵团工业“大跃进”是非论

新疆生产建设兵团是新疆重要的经济建设力量和国防力量,是新疆稳定的主要主柱之一。兵团工业不仅是兵团重要的经济部门,而且是新疆地方经济不可缺少的组成部分。1958—1960三年是兵团新建现代化工业企业的跃进时期,但由于当时全国经济形势的“跃进”,使人们自然地认为,这一时期兵团工业的跃进是一种冒进。通过对这一时期兵团工业的深入研究,文章认为兵团工业“大跃进”不是冒进而是跃进;不是片面追求高速度,而是兼顾了农业。     

防化研究院履约十年回顾

《禁止化学武器公约》生效10周年之际,简要回顾公约生效以来防化研究院参与的履约研究、核查接待、单一小规模设施建设、指定实验室建设、日本遗弃化武处理等各个方面的履约活动,以期总结经验,展望未来。     

Fighting Separately: Jointness and Civil-Military Relations in India

How do countries transition from single service to joint operations? This article engages with the discussion on military innovation to argue that civil–military relations are the most important driver for jointness. In doing so it examines jointness in the Indian military. Relying on archival research and primary interviews this article sheds new light on the operations of the Indian Peacekeeping Forces (IPKF) in Sri Lanka from 1987–1990, the 1999 Kargil War and the Post-Kargil defence reforms. The main argument is that the Indian military’s transition to jointness has been ‘incomplete’ primarily because of its prevailing model of civil-military relations. This model prevents civilians from interfering in the operational issues of the military, including on matters pertaining to jointness. It therefore recommends more forceful civilian intervention to overcome the prevailing single service approach.     

北斗导航系统移动基准站差分定位算法

针对复杂测量环境无法建立固定基准站及进行精密定位的问题,提出一种基于北斗导航系统的移动基准站差分定位算法,即基准站与流动站同时运动并实现高精度差分定位的算法。基于载波相位测量值,在动态短基线条件下,对数据进行站间和星间双差处理,消除接收机钟差以及其他公共误差。对多频观测值进行线性组合,构造双差载波相位超宽巷、宽巷、中巷及窄巷观测量。对上述观测量进行窗口滑动均值滤波并采用逐级模糊度确定法固定整周模糊度,即沿着从超宽巷到窄巷的顺序依次求解整周模糊度。为验证算法有效性,设计基于北斗导航系统的轨道外部几何参数检测仪进行实验,实现毫米级静态相对定位精度和厘米级RTK相对定位精度。     

面向工业物流服务的智能车及循迹算法的研究

将工业物流服务的智能循迹小车作为研究对象,并结合循迹算法原理,采用混合遗传算法,设计了智能循迹小车。经测试验证,小车能准确接收配送任务,按需求将物件运送到指定工位并语音播报提示,在行驶过程中能够自动避障,并在执行任务过程中能够将输运信息上传至上位机进行实时数据处理。最后,搭建了工业物流模拟服务平台,实现了对运送全程的追踪记录,进而提高工业生产自动化的程度,降低制造企业的生产成本,促进企业信息化建设。