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近年来,随着无人机与无线自组网技术的不断发展,二者结合的无人机自组网作为空中自组网技术的一个重要组成,在越来越多的领域展现出了广泛应用前景。本文针对当前基地化训练中导调信息系统主要依托于固定基础设施,从而导致在向全域作战转型要求下基地化训练的广域延伸性和灵活机动性不足问题,通过分析研究空中自组网的技术特点及应用优势,结合提升基地化训练中全域全时导调评估能力的实际需求,提出一种基于空中自组网的机动导调通信网络设计构想,并探讨了空中自组网在机动导调通信保障中的几种典型应用场景,为丰富补充基地化训练中的机动导调通信保障手段提供参考与借鉴。 相似文献
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随着信息一体化系统的不断推进,训练IP网建设已全面展开,今后将作为训练任务通信保障的主要平台。相对目前专线电路的保障体制,在带来诸如统一接口、高度自治等各种便利的同时,也存在网络结构动态变化、网络行为相对复杂等不利因素。文章通过对复杂网络理论在训练IP网中的应用研究,描述了训练IP网的网络特性,并提出了几种网络优化策略。 相似文献
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智能终端装备操作训练考核中,存在实物操作考核环境不可再现、训练考核模拟器研发周期长、通用性差等问题.提出一种面向智能终端装备操作训练考核的通用建模方法,建立装备操作任务的Petri网模型,把操作步骤构成库所集合,操作步骤变换构成变迁集合,各操作步骤的按键区域(操作热区)作为变迁的触发(点火)条件.为了屏蔽不同智能终端装备操作面板、按键(按钮)差异,把智能终端装备操作面板图片作为训练考核的操作面板,用操作热区体现用户动作,从而适合不同的智能终端装备.应用实践表明,该方法能快速建立所需的训练考核任务,且能屏蔽智能终端装备在外观、操作面板、显示面板等方面的差异,具有良好的通用性. 相似文献
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文章在论文《一种采用神经网络实现解扩的扩频系统》的基础上对采用BP网解扩的扩频系统的性能进行了分析。并用MATLAB提供的神经网络工具箱对这种扩频系统进行了仿真。仿真结果表明:采用BP网实现对直接序列扩频信号解扩的方案不仅合理可行,而且其抗干扰能力较一般的扩频系统更强。而且这种方法可以通过训练和学习使系统具有很强的自适应性,以适应信道传输特性的变化,可以说是一种自适应解扩方法,具有很好的应用前景。 相似文献
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针对传统Petri网难以精确描述故障发生的不确定性以及缺乏学习能力的缺点,将BP神经网络和加权模糊Petri网相结合,定义了一种新的能对故障进行诊断的模型——BPFPN网(A net based on BP and FPN),并提出了对BPFPN网故障诊断模型进行构造的算法,以及一种将BP神经网络算法应用于BPFPN网故障诊断模型实现对各种参数进行训练的方法;最后通过对实验参数为=5000,算法学习速率η=0.05,学习误差Δe=0.0002的柔性制造系统加工中心故障诊断实例进行实验,在对各种参数进行学习后,能够有效地实现对故障的诊断,证明了BPFPN网是一种有效的故障诊断方法。 相似文献
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一个两步蓝牙散射网形成算法TBSF 总被引:6,自引:0,他引:6
蓝牙是一门新兴的低功耗、低成本短距离无线技术,它使便携设备能方便快捷地形成短距离无线网,同时为构建成本低廉的移动自组网带来了新的选择方案.提出一个异步的、完全分布式蓝牙散射网构造算法——TBSF,首先由所有蓝牙节点生成一系列独立匹克网,然后互连匹克网成为散射网.基于节点邻居个数选择主或桥节点,通过一个节点角色转换图确定桥节点充当的角色.任意两个相邻匹克网之间通过惟一的连接路由互连,最终形成一个连通的散射网,主和桥节点构成散射网的一个连通支配集.仿真实验表明,TBSF算法创建散射网具有较好特性. 相似文献
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一种改进的蓝牙分散网形成算法 总被引:1,自引:0,他引:1
当前的蓝牙规范对微微网的形成、调度和路由选择问题进行了规定,而多个微微网组成的分散网只做了简要的描述,没有对分散网的形成问题加以论述,针对这一问题,提出了许多分散网的形成算法,但有些算法没有考虑设备的移动性,本文就设备的移动性问题,对已提出的算法加以改进,改进后的算法提高了系统的性能,节省了有限的系统资源。 相似文献
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糖尿病视网膜病变(简称糖网病)是主要的致盲疾病之一,将导致患者视觉功能下降并最终失明.糖网病的及时治疗能够尽可能保存患者的视力,因此糖网病筛查具有十分重要的意义.为了解决糖网病自动筛查准确率较低的问题,提出一种多类别训练数据下的残差网络糖网病筛查方法.首先通过收集、标定和整理眼底图数据,构建出一个新的糖网病眼底图数据集——MultiClassDR数据集,包含健康、患有糖网病和患有其他眼底疾病3种类别;然后针对高分辨率图像数据集构建残差网络模型,在ImageNet数据集和Kaggle糖网病检测数据集上对所提模型进行预训练,获得眼底图像的基本特征表达.在MultiClassDR数据集上训练及测试的结果表明,该模型进行糖网病筛查的平均准确率为87.2%;该方法能够提高模型的学习能力,增强模型进行糖网病自动筛查的性能. 相似文献
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A cognitive work analysis of quality inspection in the optical industry has been carried out in order to devise a training programme. The task concerned the inspection of high quality human eyeglass lenses. We conducted an experimental investigation of defect detection and acceptability decision-making tasks in 18 experts and novice inspectors. Detection and decision-making were investigated together and separately in two experimental sessions. We showed the effect of expertise on reaction times and errors, and we described the cognitive processes of novice inspectors. On the basis of the processing differences between the two groups, a training programme for new inspectors was devised and described. Finally, training effects were tested. 相似文献
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该文利用STAR -90模块化仿真支撑系统对热电联产机组进行仿真建模。并对热电联产机组汽机控制系统进行了分析。机组仿真机可以对电厂运行人员及管理人员进行培训和考核 ,使受培人员能熟练掌握机组在各种条件下的启停过程和正常运行中的监视操作技术 ;使受培人员的应急能力及对机组运行的综合分析能力得以提高。可利用仿真机进行机组运行方式的优化和研究 ;对控制系统的设计、性能分析以及现场调试都具有重要意义。 相似文献
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过程控制软传感器对象设计方法与应用 总被引:1,自引:0,他引:1
王培进 《计算机工程与应用》2003,39(21):10-13
基于面向对象的柔性设计与控制理论,提出了软传感器对象概念,并对其结构、功能与实现方法进行了论述。软传感器对象为智能传感器的设计提供了新途径,为传感器故障诊断和数据有效性检验提供了新方法。文章还对自映射神经网络提出了新的训练学习方法。软传感器对象在水处理过程控制系统中得到应用。 相似文献
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《Ergonomics》2012,55(8):1129-1152
Abstract Users' mental models of systems are frequently asserted to be important in their interactions with those systems. Although there are few explicit definitions of mental models in the literature, mental models are assumed to be important and researchers have seemed to accept and understand the concept intuitively. In our research, we have extracted three themes from the definitions of mental models including: (1) the relations among features or components of a system; (2) the capability of the mental model to aid in the control of the system; and (3) the capability of the mental model to enhance the user's understanding of the system. The relationships among the components of users' mental models, including procedural and declarative knowledge, perceptions of the use of system features, and the relations among the similarity of use of system features, were investigated in a field study. Trained and untrained novice users of a new business phone system rated the similarity of use of nine standard features on the phone. These ratings were used to derive cognitive representations of the relations among the system features. Users' ratings of features on univariate scales about the use of the features and scores obtained on a test of procedural knowledge were related to these representations. The two novice groups' mental models were similar except for the perception of one feature; it was more accurately depicted in the trained users' representation than those who did not attend a training programme. Two types of experts' similarity of use ratings were evaluated to determine an ‘appropriate’ representation of the use of the system features; this was then compared to the novices'. This comparison suggested that there were deficiencies in the mental models of novices. Designing training programmes and instructional aids for systems using the discrepancies between novices' and experts' mental models are discussed. 相似文献
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《Ergonomics》2012,55(8):1076-1094
A method for identifying and measuring team skills, specifying team training objectives and the objective assessment of team performance is described. First, a theoretical model of team performance is outlined and then a version of Hierarchical Task Analysis specially adapted to analysing team tasks is described. The two are then combined into an event-related measurement scheme, which provides a set of objective criteria by which key team skills can be assessed. The method is illustrated by an example from a basic Anti-Submarine Warfare training exercise which forms part of the Principal Warfare Officer's course at the Royal Naval School of Maritime Operations. The potential of the method is discussed, including the opportunities it may provide for the standardization of team performance assessment and in the use of new technology in the partial automation of shore-based and ship-board team training. 相似文献
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