地空导弹武器系统效能评估指标体系研究

地空导弹武器系统效能评估是地空导弹武器系统研制和使用过程中的关键环节.效能评估指标体系的建立是保证效能评估科学、合理的重要基础.针对现代地空导弹武器系统的使用特点,在W SE IAC模型的框架下,构建了地空导弹武器系统效能评估指标体系,并给出了指标的分解及确定方法.研究结果可为地空导弹武器系统效能评估提供支持.     

基于概率论的防空武器系统对集群敌机的服务效能研究

论述了防空武器系统服务效能的概念,提出了服务效能的评估指标,做出了符合防空作战一般规律的假设,据此,通过概率论的方法分析了对抗系统的各种状态,论证了系统统计平衡状态的存在,进而建立了数学解析模型,最后得出了对防空武器系统服务效能的定量评估指标.     

截击机机载武器装备最优规划的遗传算法研究

机载武器的合理配置是飞机作战效能得以充分发挥的前提条件.本文给出了截击机拦截多目标时的效能评估指标及其与机载武器系统之间的关系模型,并以遗传算法确定了截击机作战效能与武器装备及相关飞行参数的量化关系.经过仿真计算成功地解决了截击机在一定作战条件下,效能指标达到最大时武器装备的最优规划问题.     

基于模糊综合评判的预警机作战效能评估

根据预警机的功能结构关系,建立了预警机的效能评估指标体系;针对预警机作战效能评估多指标和不确定性的特点,结合模糊综合评判法建立了预警机作战效能评估的多层模糊综合评判模型;通过实例验证了模型的正确性和有效性.     

基于混沌遗传-支持向量机的空地攻击型无人机作战效能评估

空地攻击型无人机的作战效能评估在未来战场“去功能化”打击中具有重要的意义.在对空地攻击型无人机作战效能实时评估时,影响作战效能的评价指标体系因素相对复杂,建立作战效能评估模型存在非线性特点,因此本文引入了具有较强鲁棒性的支持向量回归机算法进行作战效能评估,在构建空地攻击型无人机评估体系基础上,利用混沌系统-遗传算法对支持向量机惩罚因子等参数进行优化,保证战场实时环境下效能评估的有效性和效率.通过实例分析,混沌遗传-支持向量机模型能够准确地对空地攻击型无人机进行有效的作战效能评估,具有良好的鲁棒性.     

集对分析在软件测试综合效能评估中的应用研究

在介绍集对分析法的思想和方法后,建立了软件测试综合效能评价体系和评价模型.以此为基础,通过求解对象综合联系度,以及设定评判集和联系度判别准则,对软件测试效能进行综合评估,确定软件测试综合效能所属等级,为软件企业改善测试过程及质量提供定量依据.     

模糊综合评判在步枪作战效能评估中的应用

从20世纪80年代至90年代开始,世界各主要军事大国均研制了本国的新一代步兵战斗用枪.本文应用模糊综合评判方法对两代(共10种)冲锋枪和自动步枪作战效能的评估和排序进行了讨论,并对其作战效能和技术水平进行了判断.所得结论对了解我军装备的先进程度,适应新时期军事科学和战备具有特别重要的意义.     

基于层次分析法-直觉模糊贝叶斯网络的作战保障能力评估

对作战保障综合能力提出一种新的评估方法,对定性指标构建直觉模糊贝叶斯网络模型,通过贝叶斯推理得到静态作战保障能力;对定量指标用层次分析法确定指标权重,得到动态后勤作战保障能力.采用直觉模糊贝叶斯网络和层次分析相结合的综合评价模型,并引入决策者的偏好因子得到作战保障能力的综合评价值.通过实例分析,验证了该方法的合理性以及有效性.     

导弹效能分析的模糊综合评判模型

本文对战略导弹系统效能的指标体系进行了研究和分析，给出了战略导弹武器系统效能分析中有效性和突防能力的模糊综合评判模型。     

导弹武器系统生存能力研究

为了合理评估导弹武器系统的生存能力,分析了导弹武器系统所面临的威胁环境,提出了影响其生存能力的主要因素,建立了导弹武器系统的伪装能力模型、反应能力模型、防护能力模型、维修保障能力模型,以及生存能力的通用模型.最后讨论了各种因素在作战运用中的实际影响.     

Vehicle dispatching system based on Taguchi-tuned fuzzy rules

This paper presents the development of a dispatching system for a fleet of automated guided vehicles in a flexible manufacturing environment which is based on a hybrid Fuzzy–Taguchi approach. A fuzzy decision-making system emulates the human behavior necessary for multi-objective directed decision making in a dynamically evolving environment. A statistical approach based on the Taguchi method tunes the fuzzy rules to achieve near optimal performance. Simulation results demonstrate the effectiveness of this marriage of computational tools in dealing with the well-known NP-complete scheduling problem.     

Two-target game model of an air combat with fire-and-forget all-aspect missiles

An air combat duel between similar aggressive fighter aircraft, both equipped with the same type of guided missiles, is formulated as a two-target differential game using the dynamic model of the game of two identical cars. Each of the identical target sets represents the effective firing envelope of an all-aspect fire-and-forget air-to-air missile. The firing range limits depend on the target aspect angle and are approximated by analytical functions. The maximum range, computed by taking into account the optimal missile avoidance maneuver of the target, determines the no-escape firing envelope. The solution consists of the decomposition of the game space into four regions: the respective winning zones of the two opponents, the draw zone, and the region where the game terminates by a mutual kill. The solution provides a new insight for future air combat analysis.This paper is based on the first author's D.Sc. Thesis. The research was supported by NASA Cooperative Agreement NCCW-4.     

Discrete Markov ballistic missile defense system modeling

Expected value is a common and useful baseline used to compare different multi-layered missile defense strategies or fire doctrines (number of interceptors fired at one target). However, expected value by itself does not render enough information to the military or national security researchers regarding the probability distribution of the effectiveness of the entire missile defense system. The objective of this paper is to provide relevant probability distribution functions (pdf) for ballistic missile defense (BMD) planning and cost-effective analyzing. To achieve this goal, discrete time Markov process is utilized to model multi-layered BMD system. Most issues of the multi-layered BMD system are covered in this model, including multi-reentry vehicles, discrimination probabilities and accompanying risk and waste of defensive resources, probability to engage all of the hostile objects, and required inventory levels. The effectiveness of a multi-layered BMD system is expressed in the pdf form of the number of warheads or missiles penetrating the BMD system. This paper also suggests that by changing fire doctrines and comparing the resulting effectiveness against cost the BMD system might be optimized. Since Markov process modeling requires initial state, military intelligence and information will be necessary to generate the initial state.     

COMPASS—the verification and validation of an operational analysis model for use in the prediction of Nimrod MRA4 operational effectiveness

Comprehensive Maritime Patrol Aircraft Systems Simulation (COMPASS) is a mathematical model of the Nimrod MRA4 weapon system that is being developed to enable the prediction of operational effectiveness. COMPASS will be used throughout the Nimrod MRA4's development life cycle to conduct tactics development and weapon system performance evaluation. Following Nimrod MRA4's entry into service, the COMPASS model may be used by the customer, the Ministry of Defence (MoD) Defence Procurement Agency (DPA), to assess operational effectiveness of potential system upgrades and to evaluate the effect of changes to the threat or operating environment. BAE SYSTEMS is developing tactical scenarios to test operational performance. The operational requirement is decomposed, at the highest practicable system level, into metrics that can be measured easily under test or trials conditions. Having quantified a system's capabilities in these lower level metrics, COMPASS can be modified to reflect them accurately. COMPASS uses these tactical scenarios to simulate the Nimrod MRA4 undertaking a number of Anti Submarine Warfare (ASW) and Anti Surface Unit Warfare (ASuW) activities. This paper describes the philosophy and process being applied to the development of a fully verified and validated COMPASS mathematical model. It also details the approach to using COMPASS to determine Nimrod MRA4 operational effectiveness through the construction of tactical scenarios.     

运输问题的模糊聚类分析求解

通过对传统模糊聚类经验公式的改进和对最后两类排序的确定,提出了一种基 于模糊聚类分析的运输问题简单快速的求解方法．编出了通用程序,并给除了实例和计算 结果．该算法既是模糊聚类分析应用的扩展,又是对运筹学知识的补充和完善．     

多层次Fuzzy综合评判在肿瘤疫苗免疫生物治疗评价中的应用

应用多层次 Fuzzy综合评判方法评判肿瘤疫苗在抗肿瘤免疫生物治疗中的效果 ,此法客观、可靠 ,为医务人员综合评估肿瘤疫苗提供了一个良好的数学模型 .     

Capture Conditions in a Pursuit-Evasion Game between Players with Biproper Dynamics<Superscript>1</Superscript>

Capture conditions in a planar pursuit-evasion game between a guided missile and its aerial target, each having either forward control or tail control, are derived analytically. The adversaries closed-loop maneuver dynamics are represented by first-order biproper transfer functions. A distinction is made between open and closed capture zones in the reduced-order game space. It is shown that locating the control surface forward, instead of aft, provides considerable advantages with regard to the existence and size of different capture zones. A new game space decomposition with two singular regions is also presented and the conditions for its existence are given.The author expresses his gratitude to the anonymous reviewers for the thorough reading of the paper and helpful comments.     

基于集值统计的模糊神经网络专家系统及其应用

建立基于集值统计的模糊神经网络专家评审系统，并应用于科研项目评审工作，实际应用表明该系统是可行的。     

Control of a twin clutch transmission for smooth gearshifts

The flow of torque in a twin clutch transmission is investigated and the different phases of torque transfer between the two clutches are studied. In order to prevent torque backlash and intense wear in dry clutch plates, a proper clamp force regulation is used. A full vehicle simulation that includes vehicle and powertrain components is set up. A Fuzzy logic control system is found suitable for clamp force and engine throttle controls. For upshift and downshift cases, the design of controllers for the gearshift process is carried out by defining proper membership functions and Fuzzy rules using Matlab/Simulink^TM software. The effectiveness of the control system is investigated by simulating two upshift and downshift cases. Results indicate that the control system is successful in regulating the clutch clamp forces and the engine throttle in such a way that a smooth torque flow in the transmission is achieved in all cases.