模糊论的复杂系统评价方法

模糊综合评价法对复杂系统进行评价具有其他评价方法无法比拟的优越性.介绍了模糊评价的基本原理及其数学模型,给出了复杂系统的模糊矩阵的表示方法及推理过程.重点分析了其在某型垂直/短距飞行器设计中的应用,证明了该方法在系统评价中的有效性.该方法可以有效地对复杂系统进行评价并对系统的设计有一定的指导意义.     

跳频电台抗跟踪式干扰性能

军事上为了正确应用跳频电台,必须对影响跳频电台正常通信的因素进行研究.对影响军事跳频电台抗干扰性能关键因素-跟踪式干扰进行分析,并且根据跟踪式干扰的特点寻求跳频电台有效对抗跟踪式干扰的策略,为正确应用跳频电台奠定坚实的基础.对于发挥军事跳频电台的战斗效能、提高其战斗力具有重要意义.     

REFLECTIONS ON THE INTEGRATION OF THE MILITARY IN SOUTH AFRICA

This paper explores the contribution of the African Union (AU) to human security promotion in Africa. It contends that human security concerns informed the formation of the AU. Through the efforts of the AU Commission, the African ruling elite and policy-makers have become aware of human security doctrines. Human security ideas have been integrated into AU binding agreements, declarations, decisions and policies. The commission is now in the difficult, yet most important, phase of trying to persuade significant numbers of the African ruling elite and civil society to accept human security as a guiding principle and the desirable norm. Through the African Citizens' Directorate (CIDO), the commission is using indigenous African civil society groups to institutionalise human security doctrines in Africa. The commission faces serious challenges in its efforts to make human security the only security norm. While member states of the AU that have never been comfortable with the introduction of human security doctrines into the continental integration project are tacitly undermining the CIDO's ability to work with civil society groups to institutionalise the doctrines in Africa, the leaders who enthusiastically supported the integration of human security doctrines into the documents and work of the AU have seemed in recent times to be less resolute in their support of AU Commission's human security work.     

A new energy efficient management approach for wireless sensor networks in target tracking

This paper mainly studied the problem of energy conserving in wireless sensor networks for target tracking in defensing combats. Firstly, the structures of wireless sensor nodes and networks were illustrated; Secondly, the analysis of existing energy consuming in the sensing layer and its calculation method were provided to build the energy conserving objective function; What's more, the other two indicators in target tracking, including target detection probability and tracking accuracy, were combined to be regarded as the constraints of the energy conserving objective function. Fourthly, the three energy conserving approaches, containing optimizing the management scheme, prolonging the time interval between two adjacent observations, and transmitting the observations selectively, were introduced; In addition, the improved lion algorithm combined with the Logistic chaos sequence was proposed to obtain sensor management schemes. Finally, simulations had been made to prove the effectiveness of the proposed methods and algorithm.     

【专题】从系统工程视角看无人机自主控制系统

提升无人机的自主控制能力可有效提高无人机在复杂对抗环境下的作战性能。系统工程是指导复杂系统研制的有效手段,采用系统的思维方法,关注系统的整体效能优化实现。系统工程覆盖复杂工程型号生命周期的全流程活动,包括概念论证、工程开发、生产制造、使用服役、综合保障以及系统退出等过程,能够为系统开发中各工程技术的应用,跨专业工程合作以及项目管理建立切实的技术路径。无人机外部应用背景环境与内部体系结构相互交联,是一个典型的“系统之系统”（System of Systems）。无人机自主控制系统是跨域、跨平台的复杂“系统之系统”。本文从系统复杂性出发,介绍了无人机系统组成、自主控制系统以及无人机自主能力等级,以期为无人机自主控制技术的发展提供参考和借鉴。     

基于以太坊的装备全寿命数据管理平台设计

武器装备具有技术密集、高投入、高风险和周期长等特点,是衡量一支军队战斗力的关键性指标。本文针对武器装备全寿命数据跟踪问题,分析研究其中各个关键环节的数据管理需求及其所面临的挑战,首次提出了一种武器装备数据管理领域去中心化且不可篡改的控制平台方案,详细设计了基于区块链的武器装备全寿命数据管理平台的系统模型、交互模型及数据属性等,并以以太坊系统为底层架构,通过部署智能合约,实现对武器装备全寿命周期的可控访问、全程审计与状态跟踪。试验结果表明,该平台运行良好,前端页面简洁友好,计算开销及时间开销较低,适用于实际作业环境下的装备数据管理,具有良好的应用前景。     

基于LMS2UKF的主/被动雷达融合算法

在主/被动雷达双传感器目标跟踪背景下,针对IMM算法的计算量大,提出一种基于变结构多模型思想的LMS2UKF分布式融合算法。该算法将LMS算法和UKF滤波算法结合进行矩阵加权融合。与IMM2UKF算法进行仿真比较,结果表明在相同情况下,本算法有较好的稳定性和较好的定位精度。     

一种面向抗ARM作战的火控雷达目标跟踪

从火控雷达抗反辐射导弹的迫切需求出发,提出了间歇式目标跟踪方法,以期实现对反辐射导弹载机的准确跟踪和对反辐射导弹的有效对抗。在对反辐射导弹载机运动轨迹进行分析建模的基础上,提出了固定步长式自适应滤波算法和归一化自适应滤波算法,同时提出了系统跟踪性能的评估指标,并进一步对不同算法下的跟踪效果进行了仿真。通过对比和分析,验证了所提出的跟踪方法的有效性。     

基于运动特征的机载雷达目标断续量测处理

机载预警雷达对目标的量测经常出现断续现象,影响了航迹连续性要求。通过对机载脉冲多普勒雷达量测出现断续的机理分析,考虑目标进入雷达多普勒盲区的情况,基于目标运动特征提出利用联合关联波门与盲区预测相结合的处理方法,将重新出现的目标点迹与原有航迹进行关联,避免同一目标航迹因量测断续而重复起始。仿真结果表明了该方法的有效性与可行性。     

自动消防系统在大型聚集场所火灾中的应用

分析大型公共聚集场所(如商场、会展中心、写字楼、公共娱乐场所等)火灾事故特点,并有针对性地说明了自动消防系统的作用,着重阐述了在火灾抢险救援中如何充分利用这些设施,以减少人员伤亡和财产损失,提高灭火成效。