面向装备作战效能评估的灰靶理论综合模型

针对武器装备作战效能评估结果对其作战运用的指导问题,提出一种面向装备作战效能评估的灰靶理论综合模型。给出邓氏灰靶理论并分析其在装备作战效能评估中的应用缺陷;介绍基于TOPSIS方法理念的装备作战效能评估的综合靶心度模型,包括虚拟灰色靶心的构造、基于灰色关联度的综合靶心度模型等;给出4部超短波地面通信对抗系统的作战效能评估实例。分析结果表明,该综合评估方法具备合理性和有效性。     

基于层次-灰色分析法的飞行编队作战效能评估

飞行编队的作战使用效能的评价指标的实现,首先采用层次分析法确定各因素的权重,再用灰色评估理论建立飞行编队作战效能评估模型.步骤包括:确立飞行编队作战效能的指标体系、应用AHP法确定每个因素集中各因素的权重、确定评估样本矩阵、确定评价灰类、计算灰色评估评估权向量,最后算出评价结果.     

基于属性测度的导弹武器系统效能评估

基于属性集和属性测度理论的导弹武器系统效能属性综合评估方法,先建立导弹武器系统效能指标体系和效能评估模型,再将评价系统分为单指标测度计算、多指标测度计算和系统效能计算.并利用层次分析法(AHP)确定各指标的权重系数,进行实例验证.结果表明,该方法是导弹武器系统效能评估的有效方法.     

信息化防空作战的地面防空武器系统效能评估模型

地面防空武器系统效能评价模型以信息化防空作战中的地面防空武器系统为对象构建.该模型从系统分析入手,采用层次分析法.通过分析决定和影响地面防空武器系统作战效能的主要因素,建立综合效能评价的指标体系.模型包括总体效能模型、火力火控系统效能计算模型、机动运行系统效能计算模型、防护系统效能计算模型和指挥系统效能计算.     

应对战场电磁干扰的自适应动态指标配置方法

在敌我双方对抗中,持续性电磁冲突和干扰可能导致用频装备效能下降甚至瘫痪,如何在电磁干扰环境下实现快速响应并精确配置元器件参数,已成为打赢现代化战争的关键能力之一。针对战场电磁干扰具有不确定、动态、多维等特点, 在指标属性权重和时序权重未知的决策环境下,提出一种基于灰色靶心决策理论的自适应动态指标配置方法。以靶心度为衡量标准,纵向给出多时序区间的自适应灰靶决策模型,横向给出采集区间时序的自适应调整方法,以实现对策指标自适应调整和确定。结合战场电磁干扰类型及原理,构建了自适应动态指标配置模型。仿真实验结果表明,与标准算法对比,该改进算法具有可行性与精确性,可为决策者科学合理配置装备指标参数提供参考。     

基于层次-灰色聚类法的城市防空被掩护目标价值评估

运用层次分析和灰色聚类法对被掩护目标的价值加以评估.以层次分析法对目标排序的步骤包括构建目标价值的层次结构模型,确定价值评估指标权重及方案层对准则层的权重.用灰色聚类分析法对目标重要性分类则通过定义聚类白化值、确定灰类的白化函数、求标定聚类权和聚类系数、构造聚类行向量及最后聚类完成.     

信息化条件下自行火炮效能评估模型研究

信息化条件下自行火炮效能评估模型以现代作战中的各种自行火炮为对象构建,该模型从系统分析人手,采用层次分析法,通过分析决定和影响自行火炮作战效能的主要因素,建立综合效能评估的指标体系,模型包括总体效能模型、指挥系统效能计算模型、机动运行系统效能计算模型、火力火控系统效能计算模型和防护系统效能计算模型．     

模糊层次分析法在火控系统效能评估中的应用

火控系统的效能评估,基于火控系统效能指标体系,运用模糊层次分析法实现.其步骤包括:确定评判对象指标集、利用层次分析得出指标权重、确定评判集、确定评价矩阵、通过归一化处理进行评价计算等.算例证明该方法可行.     

基于三角白化权函数的自行火炮作战效能评估

针对自行火炮作战效能评估问题,确定自行火炮作战效能评估因素,构建评价指标体系,运用层次分析法计算各指标权重系数,结合灰色理论中的三角白化权函数,建立自行火炮作战效能评估模型。并应用于实例,结果证明了模型的可行性和有效性,实现自行火炮作战效能的定量化评估。     

基于信息系统指挥机构指挥效能评估

为提高基于信息系统指挥机构作战指挥能力,在分析基于信息系统指挥机构能力构成的基础上进行指挥效能评估.建立基于信息系统指挥机构效能评估指标体系,根据模糊综合评价理论构建基于信息系统指挥机构指挥效能的评估模型,采用层次分析法计算各级指标关于评价对象的相对权重,进行基于信息系统指挥机构指挥效能评估计算,计算结果为指挥机构效能较高.评估结果表明:信息化条件下,指挥信息的通联能力和作战人员的信息化素养直接影响基于信息系统指挥机构作战指挥效能的发挥.     

Nitrosation and Nitration of Tetraacetyldibenzylhexaazaisowurtzitane

Tetraacetyldibenzylhitane (TADBIW) was subjected to debenzylation by nitrosating with inorganic materials available commercially to synthesize tetraacetyldinitrosohexaazaisowurtzitane (TADNSIW). TADNSIW was purified, and its structure was determined by FTIR, 1H NMR, MS and element analysis. The debenzylation reaction of TADBIW gave quantitative benzaldehyde as a by-product. This indicates that the reaction produces an imine cation as an intermediate. Hexanitrohexaazaisowurtzitane (HNIW) was prepared from unpurified TADNSIW with the yield over 96.0 % and the purity more than 98.0 %. And the mechanism of the reaction from TADNSIW to HNIW is proposed to be oxidation of nitroso and nitration of acetyl on the molecule of TADNSIW, This reaction system involved is simple, and the reaction can complete within a short time and under mild conditions. The product can be easily to separate and the waste disposed readily.     

A Robust Algorithm for Watermarking 2D Vector Maps with Low Shape-Distortions

The technique of watermarking has been introduced into 2D vector maps for many potential applications such as protecting the copyright of important GIS （geographical information system） data and tracing the data source of military maps. In most previous works, although the validity of the map data could be preserved during the embedding procedure, the shape-distortions of the map elements are usually neglected which would tend to degrade the invisibility of the watermarking schemes. A shape-preserving algorithm for watermarking 2D vector maps is presented in this paper. A 1D distance sequence extracted from the original map is adopted as the cover data instead of 2D coordinates. A watermark bit is represented by changing the distributions of the cover data. The embedding procedure induces lower shape-distortions than in former works. Experimental results indicate better invisibility of the proposed scheme, as well as its robustness to certain attacks such as map simplification, interpolation, additive noise and most geometric transforms.     

Open Rule-setting System Applied to Conceptual Design of Engines

Open rule-setting method advanced in this paper concentrates on providing designers of engines with a convenient way to express their design innovations and develop the expected prototypes in the early CAD stage, and constitute effective models for the following analysis process of CAE and CAPP. The problems arisen in the process of conceptual design with the traditional experience-based development method are analyzed. Based on those analyses, open rule-setting method is presented and some associated technical problems are discussed. The functional framework of open rule-setting system was built as software engineering methods. The speciality of the engine product as a kind of complex product and the requirement of the engine product based on its structural particularity to rule-setting system are considered carefully. A demonstration is supplied to illustrate how the open rule-setting method enhances the efficiency and quality of the engine conceptual design.     

Research on Linux Network Device Driver

By analyzing the working principle of Linux network device driver, discussing the Linux network driver structure and its key technologies, the general network driver structure and its design methodologies in Linux system are summarized. Through modifying the network device driver of Linux device driver 3rd version snull, c and improving the COW technology, the Zero-Copy technology in Linux （kernel version 2.6.11 ） is implemented. In the end, the success test tells us that the thorough analysis of network device driver is the foundation of many applications, and it also provides a certain improvement to a lot of real applications, even to military application development.     

Improvement and Experiment of the Reamer in Vibra Cutter Against Wave Edge of Titanium Sheet Alloy Parts

By analyzing the influencing factors of part quality making of sheet alloy of titanium by vibra cutter, the shape of upper reamer is set as cylinder and wedge-shaped form, and the lower reamer as plain and hemicycle form, and its main structural parameters are defined as well. Then it is validated further that such improved vibra cutter reamer can be used to process curve-edged parts of titanium alloy sheet. The experimental result shows that the titanium alloy sheet parts processed by above equipment have no sharpen angles for convex parts and evident crevasse of concave-edged part. In summary, such improvement can eliminate the free-waved edge and improve the manufacture quality of titanium alloy sheet parts greatly.     

Experimental Study on the Small Flyer Initiating Behavior of Fine-grained Explosives

The initiating behavior of fine-grained explosives by small flyer is studied. The diameter of small flyer in this device is 1 ram. The test results indicate that the granularity of explosives has great effect on its flyer initiating sensitivity.The flyer initiating sensitivity of the fine-grained explosives is higher and the critical initiating energy is lower than that of common explosives. For common explosive, the flyer initiating sensitivity increases as the density is reduced. But for the fine-grained explosive, the test results are exactly opposite.     

Algorithm for Multi-laser-target Tracking Based on Clustering Fusion

Multi-laser-target tracking is an important subject in the field of signal processing of laser warners. A clustering method is applied to the measurement of laser warner, and the space-time fusion for measurements in the same cluster is accomplished. Real-time tracking of multi-laser-target and real-time picking of multi-laser-signal are introduced using data fusion of the measurements. A prototype device of the algorithm is built up. The results of experiments show that the algorithm is very effective.     

Influence of Installing Error on the Surface Shape Precision of the Axial Symmetry Aspheric Workpiece in Lapping

A method to calculate the surface shape error, which is caused by the installing error between the workpiece and the lapping tool in the process of form lapping, is proposed. The mathematical model which the installing translation error influences on the workpiece surface shape error is established. The changing rule of the error is simulated through the calculating example of the paraboloid workpiece. The results indicate that the surface shape error of the workpiece is increasing with the increase of the installing translation error, it is also increasing gradually along the center point of the curve surface to the edge, and the influence is severer to the curve surface with great curvature than that of the small curvature when the translation error is the same.     

Experimental Research on Output Performances of Giant Magnetostrictive Actuator

The paper introduces the performances of magnetostrictive actuators and its applications, discusses the design methods for the structure and internal magnetic circuit of a giant magnetostrictive actuator, and makes tests on the output displacement and force characteristics for an actuator using homemade magnetostrictive material. The experimental result shows that the actuator has satisfactory output precisions and ranges in transient and stable states, and can be used in lowfrequency vibration control system of precise equipment.     

Robust Graded Sliding Mode Tracking Control for Low Speed Spinning Ballistic Missiles

The nonlinear dynamic model of spinning ballistic missiles is established during the first boosting phase of the missile. Based on the conventional backstepping sliding mode control and the assumption of a two time-scale separation of missile dynamics, a graded sliding mode controller is designed with two sub-sliding surfaces which have invariability to external disturbances and parameter perturbations, and a matrix which comprises three first order low pass filters is introduced to prevent ＂explosion of terms＂. Owing to the upper bounds of the uncertainties are difficult to obtain in advance, adaptive laws are introduced to estimate the values of the uncertainties in real-time. Eventually, the numerical simulation results given to show the proposed controller can ensure the steady flight of missiles.