航空电子多总线记录系统的设计与实现

讨论了某型航空电子设备的数据记录系统的设计与实现 ,主要探讨了此系统的软、硬件开发 ,系统组成及其信息流。系统采用了 ARINC4 2 9总线和并行总线 ,将各个子系统连接起来 ,实现数据的综合处理、综合控制、综合传输 ,在实际应用中收到了很好的效果     

基于Web技术的固定资产管理系统的设计与实现

“基于Web技术管理信息系统”是将Web技术与数据库技术相结合,从而实现动态信息管理的系统。提出了“基于Web技术的固定资产管理系统”的解换方案,进行了系统分析,详述了系统的功能,并对关键技术的实现方法进行了论述。该系统对于提高固定资产管理正规化、现代化、科学化的管理水平有着重要意义。     

Priori information analysis of optocoupler accelerated degradation experiment based on failure mechanism verification test

The optocoupler is a weak link in the inertial navigation platform of a kind of guided munitions. It is necessary to use accelerated storage test to verify the storage life of long storage products. Especially for small sample products, it is very important to obtain prior information for the design and implementation of accelerated degradation test. In this paper, the optocoupler failure mechanism verification test is designed and the experimental results are analyzed and the prior information is obtained. The results show that optocouplers have two failure modes, one is sudden failure and the other is degradation failure; the maximum temperature stress of optocoupler can't exceed 140 °C; the increase of leakage current of optocoupler is caused by movable ions contaminating the LED chip. The surface leakage current is proportional to the adsorption amount. The increase of leakage current makes p-n junction tunneling effect occur which LEDs the failure of the optocoupler. The lifetime distribution model of the optocoupler is determined by the failure physics. The lifetime of the optocoupler is subject to the lognormal distribution. The degeneracy orbit of the optocoupler leakage current is described by a power law model. The estimated values of the orbital parameters are initially calculated and the parameters of its life distribution function are deduced. The above information lays a good foundation for the optimization design and data processing of the accelerated degradation experiment.     

基于OODA环的信息化战场信息安全保障SD建模分析?

为深入研究信息化战场信息安全保障，提高保障效能，利用OODA环理论对信息化战场信息安全保障过程进行了分析与研究，明确了观察、判断、决策和行动每个阶段的任务与事件，并运用系统动力学方法对基于OODA环的信息化战场信息安全保障过程进行建模分析和模拟仿真，仿真结果表明随着时间推移，保障方得到的信息增多，判断和决策的正确率也随之增加，OODA环周期开始减小，保障效能随之大幅提升。研究结果对于提升信息化战场信息安全保障效能具有一定的参考价值。     

基于物元分析方法的作战指挥信息效能评估

根据信息作战需要,总结出作战指挥信息效能评估分层指标,运用物元分析理论构造了评估模型,并结合具体实例验证了此模型的可行性和实用性。该方法能够有效结合定性与定量分析,且模型结构简单规范,为作战指挥信息效能的评估提供了一种较为有效的方法和途径。     

非毁伤性攻击下C2关系网络效能评估方法?

非致命毁伤对C2关系网络效能的影响，目前需要更为有效的评估方法。考虑到指控网络能否有效发挥作用，主要体现于指挥控制信息能否及时有效地按需到达，因此分析计算指挥控制信息按时按需到达的情况，可以作为指挥控制关系网络效能的一种有效评价方法。形式化描述了任务信息的到达时延、信息到达率等参数，给出了单次任务信息效用的解析计算方法。在此基础上，通过仿真计算，得到了非毁伤性攻击、多任务条件下网络效能取值及其随完成任务数量的变化关系。最后，分析了网络攻击范围、攻击策略与网络效能间的关系，评价并检验了与之相关的两点结论。     

The Russian hybrid warfare strategy – neither Russian nor strategy

Following Russia’s annexation of Crimea and its initial actions in eastern Ukraine in 2014, the term hybrid warfare has received much public attention. Many have argued that the Russian actions we saw in Ukraine were part of a completely new strategy while others have suggested that there was nothing new in Russia’s actions. This article takes a critical look at these claims. Through the assessment of the history of the term hybrid warfare and a rigorous analysis of the so-called Gerasimov doctrine, this study finds that the Russian hybrid warfare strategy is rather a western myth than a formal comprehensive Russian strategic concept. Additionally, through the assessment of the Russian use of information operations and the way she has utilised the cyberspace in several recent conflicts, the study finds that against all claims Russia did not make these areas its main battlefield, but rather has been using them in support of its traditional concepts.     

Pairwise model discrimination with applications in lifetime distributions and degradation processes

Reliability data obtained from life tests and degradation tests have been extensively used for purposes such as estimating product reliability and predicting warranty costs. When there is more than one candidate model, an important task is to discriminate between the models. In the literature, the model discrimination was often treated as a hypothesis test and a pairwise model discrimination procedure was carried out. Because the null distribution of the test statistic is unavailable in most cases, the large sample approximation and the bootstrap were frequently used to find the acceptance region of the test. Although these two methods are asymptotically accurate, their performance in terms of size and power is not satisfactory in small sample size. To enhance the small‐sample performance, we propose a new method to approximate the null distribution, which builds on the idea of generalized pivots. Conventionally, the generalized pivots were often used for interval estimation of a certain parameter or function of parameters in presence of nuisance parameters. In this study, we further extend the idea of generalized pivots to find the acceptance region of the model discrimination test. Through extensive simulations, we show that the proposed method performs better than the existing methods in discriminating between two lifetime distributions or two degradation models over a wide range of sample sizes. Two real examples are used to illustrate the proposed methods.     

分队模拟训练想定生成系统研究

在分队的仿真训练系统中,为了实现各仿真节点能够按照指挥员的意图进行训练,必须提取作战想定中的有用信息,将其转化为可供仿真系统应用的仿真想定。基于军事地理信息系统(Military Geographic Information Sys-tem,MGIS)的图形处理系统应用编程接口开发的想定生成系统,解决了态势图的标绘,仿真想定生成、分发和接收的问题,进一步完善了中央控制台的功能,并已应用于战车分队对抗仿真训练系统。     

不完全信息下军事威逼讨价还价博弈分析

在详细分析威慑与威逼区别的基础上,构建了不完全信息下军事威逼讨价还价博弈模型。按照最大期望效用准则,分析了不完全信息下军事威逼走向讨价还价阶段的条件,研究表明:运用鲁宾斯坦经典讨价还价唯一完美均衡解,得出以下结论:争夺目标自身的效用越大,战争带来的声誉得益效用越大,军事威逼走向讨价还价阶段的可能性越大;一旦进入讨价还价阶段,威逼者会接受挑战者提出的方案,冲突将不再发生。