基于灰色系统理论的反舰导弹武器系统综合作战效能分析

简要叙述了灰色系统理论的原理与基本概念.应用灰色系统理论,建立了反舰导弹武器系统综合作战效能评估模型.通过对六种反舰导弹武器系统的综合评判分析,得出了其综合作战效能的排序结果,具有一定的实用意义.     

基于熵权法的潜射反舰导弹作战效能灰色关联评估方法

为了提高潜射反舰导弹系统的作战效能,提出一种潜射反舰导弹效能综合优化评估方法。运用信息熵和灰色关联分析理论对潜射反舰导弹作战效能进行综合评估,论述基于熵权法的潜射反舰导弹效能灰色关联评估方法的具体评估过程,并结合潜射反舰导弹系统进行应用分析,有效解决了潜射反舰导弹效能评估中存在着指标信息不确定和指标间关系不明确的问题。该方法为潜射反舰导弹系统的论证、设计和改进提供了科学的理论决策依据。     

基于“效率”的反舰导弹作战效能评估方法

针对舰艇反舰导弹作战使用过程中,采用毁伤概率和作战成本作为效能评估指标会带来信息损失,不能全面反映反舰导弹作战效能的问题,从舰艇反舰作战的过程入手,通过分析反舰作战过程中的各种不确定性因素,以及作战时间对作战效能的影响,建立了基于"效率"的作战效能评估模型,并给出了计算的方法和步骤,为反舰导弹作战效能评估提供了一种更加有效的途径。     

某型反舰导弹作战效能评估及仿真分析

为反映战场对抗强度对作战效能的影响,对某型反舰导弹作战效能进行评估及仿真分析。将反舰导弹作战效能分成武器系统基本效能和对抗效能2部分,建立反舰导弹作战效能评估模型,确立相应的评估指标体系,采用蒙特卡罗法对多发导弹作战效能进行仿真,得到作战效能随导弹数量的变化规律。研究结果表明：该研究可以通过实施多弹饱和攻击地方法来提高该型导弹地作战效能,为进一步提高该型导弹的作战效能提供了一定的理论依据。     

信息优势对反舰导弹系统作战效能的影响分析

通过分析反舰导弹武器系统的作战过程,得出了信息优势对武器装备系统效能的影响.考虑到作战过程中信息优势产生的指挥决策优势,建立了指挥决策效能模型G,改进了WSEIAC提出的ADC模型,提出一种新的系统效能评估模型GADC,对系统作战效能进行评估.具体算例表明,信息优势将大大提高反舰导弹武器系统的作战效能.     

大气波导对反舰导弹作战效能的影响分析

针对大气波导因素对反舰导弹及目标双方的影响,通过模拟计算与仿真的方法,研究了大气波导条件下反舰导弹作战的效能。通过研究,得出大气波导条件下反舰导弹的捕捉能力和抗干扰能力都有所增强,同时大气波导会使防御方的雷达系统对反舰导弹的探测能力和探测精度下降,从而使反舰导弹的作战效能得到提升。     

反舰导弹精度仿真中的海浪模型建立与校验

在评价反舰导弹武器系统精度时,常采用数字仿真分析,并采用数理统计方法进行统计,以评价导弹的作战效能.对影响导弹作战效能的随机因素进行分析是必要的.海浪是反舰导弹掠海飞行时的典型随机扰动因素.提出基于能量等分法,通过确定海浪子波的中心频率,以波浪叠加的形式建立了作用于反舰导弹雷达高度表的海浪仿真模型,采用谱估计法中的加权函数的协方差法进行模型校验.实践证明所建海浪模型是可信的.     

对抗条件下反舰导弹的作战效能仿真分析

介绍了反舰导弹作战效能指标的分类和特点，论述了对抗条件下反舰导弹作战效能的仿真方法，总结了对抗性的主要考虑因素，构建了反舰导弹作战效能仿真的模型库．在此基础上进行了仿真和分析，证明了所述方法、模型及仿真的有效性．     

潜射反舰导弹作战效能仿真研究

描述了潜射反舰导弹的作战过程，对影响导弹作战效能的因素进行了分析，建立了无对抗条件下潜射反舰导弹作战效能仿真的基本框架。     

基于SEA的潜射反舰导弹作战效能分析

在考虑作战双方的对抗以及战场环境影响的情况下,运用系统有效性分析(System Effec- tiveness Analysis,SEA)方法,将潜射反舰导弹的系统属性、作战环境和任务使命三要素结合起来,建立了潜射反舰导弹的效能评估模型,给出了基于战场环境下的动态作战效能评估方法,避免了以往静态效能评估和动态评估的局限性,使作战效能评估结果更加接近真实情况,对潜射反舰导弹作战效能的提高有一定的指导意义。     

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.