战场图像情报侦察处理技术及其发展

为了及时了解和掌握图像侦察领域最新的处理技术和发展动态,研究了战场图像情报的特点,主要获取手段,美军目前使用的几种典型战场图像侦察装备,战场侦察图像的融合处理和关键技术。     

中国特色社会主义的新境界——学习十六届六中全会《决定》的几点体会

党的十六届六中全会和全会通过的《决定》,标志着中国特色社会主义达到了新的境界:其一,开辟了中国特色社会主义事业发展的新境界;其二,对中国特色社会主义理论的认识达到了新境界;其三,把中国特色社会主义的伟大实践提升到了一个新境界。     

基于个体判断优先序的多目标群决策方法研究

针对多目标群决策问题,深入分析了群意见的形成方式.对基于方案优先序的多目标群决策问题给出了若干求解群排序的方法.对其求解原理和集结结果进行了对比,并分析了各方法的实质及其等价关系;澄清了一些模糊认识,指出了某些方法存在的问题,对此类多目标群决策问题的求解提供了依据.     

Capacity allocation with traditional and Internet channels

In this paper we study a capacity allocation problem for two firms, each of which has a local store and an online store. Customers may shift among the stores upon encountering a stockout. One question facing each firm is how to allocate its finite capacity (i.e., inventory) between its local and online stores. One firm's allocation affects the decision of the rival, thereby creating a strategic interaction. We consider two scenarios of a single‐product single‐period model and derive corresponding existence and stability conditions for a Nash equilibrium. We then conduct sensitivity analysis of the equilibrium solution with respect to price and cost parameters. We also prove the existence of a Nash equilibrium for a generalized model in which each firm has multiple local stores and a single online store. Finally, we extend the results to a multi‐period model in which each firm decides its total capacity and allocates this capacity between its local and online stores. A myopic solution is derived and shown to be a Nash equilibrium solution of a corresponding “sequential game.” © 2006 Wiley Periodicals, Inc. Naval Research Logistics, 2006     

基于卷积核剪枝的遥感目标检测模型压缩方法

针对基于卷积神经网络的遥感目标检测模型压缩问题,基于卷积核剪枝理论,设计了卷积通道剪枝的方案,对YOLOv3模型进行精简压缩.提出卷积通道的概念并将BN层系数作为卷积通道的评估因子,使用L1正则化将评估因子稀疏化,将评估因子值较小的卷积通道剔除,再对各卷积层中的参数进行微调,从而达到模型压缩的目的.使用该方法对自制的典型遥感目标检测数据集进行目标检测实验,在剔除90％参数的情况下,测试精度下降率在10％以内.实验结果表明该方法能以较小的精度损失为代价,节省大部分的储存空间和计算量.     

【专题】运用时空大数据增强战场态势感知能力

时空数据是同时具有时间、空间和专题属性的三维数据。近年来,时空大数据技术领域取得重大进展,时空大数据也开始逐渐应用于战场态势感知,辅助联合作战指挥决策,推动了智能化战争的快速演进。本文基于未来战场对一体化联合作战战场态势感知的新要求,从用于支撑战场态势感知的时空大数据平台构建、时空大数据来源拓展和平台的优化利用等三个层次,探讨了打造军事作战资源“一张图”以支撑一体化联合作战战场态势感知的可行性;同时,对时空数据结构、数据平台和数据分析计算方法等方面进行了深入分析和重点布局。研究成果可对解决“参战力量在哪里,可配合的友邻力量有哪些,能使用的军事资源有什么”等问题和提升基于时空大数据技术的联合作战、全域作战能力提供技术及理论支撑。     

高速SpaceFibre总线节点的系统设计

为了实现SpaceFibre总线节点的高效数据传输,针对网络协议中关键问题和技术提出了一种基于现场可编程门阵列(Field Programmable Gate Array,FPGA)的SpaceFibre总线节点系统设计方案。其中,采用了轮询仲裁算法,解决了多路虚拟通道中流量控制字的申请冲突;设计了基于服务质量机制的高效处理状态机,实现了多路虚拟通道的服务质量调度;提出了一种并行的分区存储架构和重发控制算法,实现了基于错误检测隔离恢复机制的错误恢复;采用了不同的数据并行处理方案,实现了多种数据格式的循环冗余校验和伪随机序列的计算。通过ModelSim仿真平台对节点系统进行功能仿真,并在Virtex-6 FPGA上完成了系统验证。结果表明,该设计实现了SpaceFibre总线节点的功能,串行传输速度可达3.125 Gbit/s,能够满足高速数据传输需求。     

Noise and vibration measurements in a Viking military vehicle

Noise and whole-body vibration measurements were made in a Viking military vehicle to determine the variation that should be expected during repeat measures, the effect of speed (up to 60 km/h in 5 km/h increments), and during travel over different types of terrain (comprising concrete road, gravel track and rough cross-country). Measurements were made at various crew positions (including the driver and commander) in both the front and the rear cabs in the vehicles. Three translational axes of vibration were measured in each seat. Two speeds were investigated over road (35 km/h and 55–60 km/h) and gravel (20 km/h and 35 km/h) surfaces. The effect of varying speed of the vehicle on the measured noise and vibration magnitudes was also investigated. The highest sound pressure level (L_Aeq) of 104 dB(A) was measured at the commander’s standing position during travel over concrete road at 55 km/h. Higher noise levels occurred for a standing commander compared with when sitting on the seat. A maximum single axis frequency-weighted vibration magnitude of 1.0 m/s² r.m.s. was measured on the driver’s seat during travel over track at 35 km/h. Higher vibration magnitudes occurred during travel over track compared with travel over road. Both noise and vibration exposure of crew within the Viking vehicle increased with increasing speed of the vehicle.     

武器装备研发成本补偿引入保险机制

随着我国军民融合武器装备研发生产体系的深度发展和社会主义市场经济体制的不断完善,武器装备研发中投入的研发成本面临很高的投资风险,成为困扰企业参与武器装备研发的重要因素。面对庞大的研发费用支出以及研发成本补偿措施不完善,企业要独自面对研发活动中的风险,这在一定程度上降低了企业参与装备研发的积极性。本文认为,通过保险机制的引入,鼓励企业为武器装备研发活动投保科技保险,同时,军方在对研发活动进行分析评判后,对企业的保费按比例进行分摊,能够在拓宽补偿途径的同时,利用保险分担企业研发过程中的风险,激发企业参与武器装备研发的热情,更好地为军队武器装备发展建设做出贡献。     

基于雾计算的路网-野区路径规划研究

针对路网、野区联合路径规划需求,提出了在雾计算平台上的路网-野区无缝衔接的路径规划方法,适用于路径规划区域同时覆盖城市道路与野区的情况.综合雾计算的特点,分析了路网-野区路径规划服务的应用方式.提出了适用于路网-野区环境下的启发函数,提供路径最短、时间最短两种模式的路径寻优算法.仿真和试验结果表明所提供的基于雾计算的路网-野区路径规划方法的可行性,能够满足路网-野区的路径规划需求.