基于比较语言的军民融合式装备维修保障风险评估

针对地方维修商参与部队装备维修保障给军方带来诸多风险的问题,系统分析了军民融合式装备维修保障存在的风险因素,提出了一种基于比较语言表达的风险评估模型。将比较语言表达式转换为犹豫模糊语言术语集（HFLTS）,并计算出由梯形模糊隶属函数表示的 HFLTS 的模糊包络,最后应用双基点法进行维修商的选择决策。通过实例验证了模型的有效性。     

卫星通信干扰信号的检测方法

卫星通信系统较易受到各种干扰,尤其是人为干扰,为了抑制干扰,需对信号进行正确的干扰检测。就几种常见的卫星干扰信号,对其进行 Matlab仿真实验,研究不同干扰类型信号的特点,提出一种改进的CME算法用于检测干扰信号是否存在。与能量检测法和传统的CME方法相比,它具有较好的检测性能。仿真结果表明,提出的CME方法可以有效用于干扰检测。     

The probability of the existence of a feasible flow in a stochastic transportation network

Stochastic transportation networks arise in various real world applications, for which the probability of the existence of a feasible flow is regarded as an important performance measure. Although the necessary and sufficient condition for the existence of a feasible flow represented by an exponential number of inequalities is a well‐known result in the literature, the computation of the probability of all such inequalities being satisfied jointly is a daunting challenge. The state‐of‐the‐art approach of Prékopa and Boros, Operat Res 39 (1991) 119–129 approximates this probability by giving its lower and upper bounds using a two‐part procedure. The first part eliminates all redundant inequalities and the second gives the lower and upper bounds of the probability by solving two well‐defined linear programs with the inputs obtained from the first part. Unfortunately, the first part may still leave many non‐redundant inequalities. In this case, it would be very time consuming to compute the inputs for the second part even for small‐sized networks. In this paper, we first present a model that can be used to eliminate all redundant inequalities and give the corresponding computational results for the same numerical examples used in Prékopa and Boros, Operat Res 39 (1991) 119–129. We also show how to improve the lower and upper bounds of the probability using the multitree and hypermultitree, respectively. Furthermore, we propose an exact solution approach based on the state space decomposition to compute the probability. We derive a feasible state from a state space and then decompose the space into several disjoint subspaces iteratively. The probability is equal to the sum of the probabilities in these subspaces. We use the 8‐node and 15‐node network examples in Prékopa and Boros, Operat Res 39 (1991) 119–129 and the Sioux‐Falls network with 24 nodes to show that the space decomposition algorithm can obtain the exact probability of these classical examples efficiently. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 479–491, 2016     

面向装备论证的多方案分析框架

多方案分析是实现军事需求向装备建设发展与作战使用前瞻性映射的重要手段。分析了面向装备论证的多方案分析内涵,并从需求分析、可行性分析阶段和方案分析及优选三个阶段构建了面向装备论证的多方案分析基本框架,最后对多方案分析三个阶段的主要研究内容进行了详细阐述与分析。研究成果可为装备发展建设决策提供基础理论、方法和手段支撑。     

采用SHLPN分析特种车载总线网络可靠性

针对特种车载总线网络可靠性难以评估的问题,提出采用随机高级Petri网(Stochastic High-level Petri Net,SHLPN)分析特种车载总线网络可靠性。深入分析特种车载总线网络故障模式的基础上,将其等效为冗余总线控制器模块、远程终端模块和冗余链路模块的串联,分别建立各个模块的SHLPN模型,得到了各个模块的稳态可用度计算式,进而综合得到特种车载总线网络的稳态可用度计算式。最后,实例分析验证了所提方法的有效性。     

Generation and storage dispatch in electricity networks with generator disruptions

We present methods for optimizing generation and storage decisions in an electricity network with multiple unreliable generators, each colocated with one energy storage unit (e.g., battery), and multiple loads under power flow constraints. Our model chooses the amount of energy produced by each generator and the amount of energy stored in each battery in every time period in order to minimize power generation and storage costs when each generator faces stochastic Markovian supply disruptions. This problem cannot be optimized easily using stochastic programming and/or dynamic programming approaches. Therefore, in this study, we present several heuristic methods to find an approximate optimal solution for this system. Each heuristic involves decomposing the network into several single‐generator, single‐battery, multiload systems and solving them optimally using dynamic programming, then obtaining a solution for the original problem by recombining. We discuss the computational performance of the proposed heuristics as well as insights gained from the models. © 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 493–511, 2015     

军事无线通信抗干扰装备及技术发展

以经典扩跳频抗干扰通信技术为切入点,综述了外军短波、超短波战术通信和数据链领域抗干扰装备和技术的发展现状,在此基础上,对通信抗干扰技术未来发展趋势进行了分析和预测。     

备件冷储备方案下装备群任务可靠性建模

针对具有相同结构功能的装备群系统可靠性评估问题,根据任务周期内对装备完好数的要求,合理表示了系统状态转移过程。以部件任务期间状态变化为研究对象,将系统等效表示为多阶段任务系统,即串行k/N(G)系统。在确定系统可行状态过程基础上,分别建立了部件寿命分布在3种不同情形下的系统任务可靠性模型,并分析了备件冷储备方案的影响。为确定系统任务期间备件携带量提供决策支持,最后给出了一个应用实例。     

陆军自动检测设备发展综述

根据陆军武器装备系统对技术保障的要求,以及自动检测设备的应用和发展情况,论述了陆军自动检测设备的概念及分类方法,对陆军自动检测设备研制的技术设计思想和基本性能提出了具体的要求,分析了陆军自动检测设备的现状和发展方向,并提出了陆军自动检测设备的配置方案。     

ATM交换网络的连接技术

介绍了异步传输模式交换网络(ATM)的概念、组成及特点,并着重论述了ATM的连接技术,包括分层结构、连接过程和连接建立。其中提出了ATM层是其连接技术的核心,连接过程的实质是利用了虚连接的概念及连接建立的4个基本步骤。最后指出了ATM网络在未来通信中的应用及发展前景。