P^3I在军用电子系统中的应用研究

Ｐ＾３Ｉ是研制军用电子系统时处理电子技术更新快，威胁肿类多变，经费不足等难题的一种有效方法。本文在介绍美国军用电子系统研制中应用Ｐ＾３Ｉ状况的基础上，研究了Ｐ＾３Ｉ的有效应用问题，分析了在我国的应用前景，Ｐ＾３Ｉ可以用于其它复杂系统的研制。     

C^3I系统综合评价

评述了兵器系统的评价现状，指出：运用生产阶段的评价规范于论证、研制阶段是不适宜的，评价的研讨、共识和规范化是亟待加强的过程。并给出了两种实用综合评价模型及它们在Ｃ＾３Ｉ系统论证、研制阶段中的应用。     

P~3I 与 CE 的比较与集成

系统地比较了Ｐ３Ｉ和ＣＥ方法，分析了集成两者的可能性，指出综合应用Ｐ３Ｉ与ＣＥ可以有效解决复杂系统或产品的研制问题，Ｐ３Ｉ概念实际上已包括ＰＳＩ理论     

C^3I中的多传感器数据融合技术

首先对多传感器数据融合技术进行了综述，再以国内外发表的文献为例说明了数据融合技术在Ｃ＾３Ｉ中的应用，最后对数据融合技术进行了展望，并提出了我们的对策。     

C补偿的实现方法

本文介绍了ＳＷＡＩ ＢＫＸ３－３ＭＢ数控系统Ｃ补偿的实现方法，并概要说明了ＣＯＲＤＩＣ算法在数控铣系统中的应用。     

信息战中的战术伪装——C^4I的一个新范例

随着科学技术、特别是计算机技术的迅速发展，战争模式发生了很大变化，出现了信息战和网络中心战新概念，介绍了网络中心战的要领和Ｃ＾４Ｉ系统不遭攻击的防范措施。     

基地C^3系统实时收发模块的模型与结构

本文对Ｂｅｒｋｌｅｙ Ｓｏｃｋｅｔ及其在ＷｉｎｄｏｗｓＮＴ３．５１下的实现作了扼要分析，论述了基地Ｃ＾３系统网络实时接收发送模块的模型与结构。     

导弹设计的P^3I方法

Ｐ３Ｉ是一种具有普遍意义的系统方法．研究了Ｐ３Ｉ的应用问题，尤其是如何设计预设条件及减少改进的不确定性，分析了波音公司采用Ｐ３Ｉ策略研制空射巡航导弹的成功经验。Ｐ３Ｉ方法对我国的导弹和其它复杂系统的设计均有重大意义。     

六硝基六氮杂异伍兹烷的结构鉴定

用ＦＴＩＲ，＾１ＨＮＭＲ，＾１３ＣＮＭＲ，ＭＳ（ＣＩ），ＵＶ及元素分析方法鉴定了作者所合成的六硝基六氮杂异伍兹烷（ＣＬ－２０）的结构，并以ＦＴＩＲ区分了所制得的ＣＬ－２０的四种晶型（α，β，γ及ε）分析结果证明作者合成的试样的结构与文献报道的ＣＬ－２０的结构式完全相符。     

CCP与数据处理机的部件级备份互连拓扑结构及性能分析

本文对基地１５＃中心计算机系统的可靠性进行了分析，提出了ＣＣＰ与数据处理机的部件级备份互连拓扑扑结构，并进行了系统性能分析。分析结果表明，现有系统的可靠性为１－（１－ｅ＾－（λｃｃｐ＋λｃｏｍｐ）ｔ）２，采用部件级备份互连拓扑结构的系统的可靠性能为〔１－（１－ｅ＾－λｃｃｐｔ）２〕〔１－（１－ｅ＾－λｃｏｍｐｔ）２〕，其可靠性及主付机切换速度等指标，明显优于现有系统。     

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.