信号预处理在地形跟踪系统中的应用

提出将地形信号预处理的思想，用于地形起伏较大导致跟踪控制输出较大的情况，并分别在频域内和时域内给出信号处理的方法。通过仿真表明，尽管处理方法简单，但能极大地改善系统的性能，可使巡航导弹舵机的输出控制在线性范围内，同时对跟踪实际地形信号没有太大的影响。     

巡航导弹跨海飞行高度跟踪系统仿真

海浪的运动决定于水深和海面风力等因素．文中采用功率谱密度（PSD）函数和概率密度函数（PDF）对海浪运动进行建模仿真．得到了与实际观察相符的海浪运动模型．并将此模型应用于巡航导弹掠海飞行高度跟踪仿真系统中．由此判断巡航导弹在掠海飞行性能所受海浪的影响程度，为巡航导弹地形跟踪控制系统的设计和航迹规划奠定了基础。     

巡航导弹组合高度三阶回路性能分析

高度测量系统是影响巡航导弹巡航飞行、地形匹配、地形跟踪等过程的关键因素之一，文中针对巡航导弹的特点，采用气压／惯性三阶组合高度回路，有效抑制了高度通道的发散、消除了气压高度表的高频噪声影响，并针对组合高度回路的参数优化、动态性能等进行了研究。     

威胁重新唤起:防御巡航导弹:西方对付巡航导弹威胁的对策

巡航导弹能以更可控的方式投放生物,化学弹头,它们尺寸小(RCS小),隐蔽在地形中超低空飞行,使反巡航导弹具有特殊困难。文中介绍了西方主要是美国防御巡航导弹的对策,包括反巡航导弹的战术研究,“爱国者”防空系统改进,开发MEADS空防系统,发展低价的指令制导炮弹,开发战术高能激光武器,开展反巡航导弹的演示验证试验等。指出了反巡航导弹拦截器的导引头必须增强其在高地海杂玻下截获和跟踪小目标的工作性能。     

巡航导弹撞地概率与导弹参数选择

研究了巡航导弹低空地形跟踪飞行的撞地概率问题，其中既考虑了地形随机输入，又考虑了低空风随机干扰的影响，研究了撞地概率的计算方法，并以参数ａ２４和ＫＨ的选择为范例，分析了它们对撞地概率的影响及给定撞地概率条件下的参数选择范围。     

临近空间多传感器探测跟踪CM分析

针对巡航导弹(CM)的防御问题,分析了在临近空间平台上搭载多传感器探测跟踪巡航导弹的可行性,介绍了目前世界上主要的探测巡航导弹的技术,并详细分析了在临近空间探测跟踪巡航导弹的关键技术。     

空射巡航导弹导航系统的研制一体化和试验

总结了美国空射巡航导弹（ＡＬＣＭ）武器系统的研制、一体化和试验，涉及的内容有，Ｂ－５２／ＡＬＣＭ导航系统硬件、空射巡航导弹硬件、用于空射巡航导弹对准及进行地形相关定位的卡尔曼滤波器及空射巡航导弹任务规划。空射巡航导弹导航系统试验的重点在于满足预期使用要求的试验的真实性，本文的重点则在于这种方法是如何影响空射巡航导弹的设计以及在试验计划的早期如何暴露潜在的问题。     

巡航导弹的技术进展

巡航导弹能力的增强是技术发展超出原来计划的结果。霰弹头的发展同导航精度的提高结合起来,使巡航导弹可用于机场攻击。威廉斯研究公司发动机的改进同弹翼空气动力学的改良结合起来,使导弹的地形跟踪高度更低,从而更提高了生存能力。另外,发动机的改进还增大了巡航导弹的射程。本文介绍了利弗莫尔实验室研制的霰弹头,海军航空电子设备司令部研制的数字式景象匹配区域相关器,改良的弹翼空气动力学,和威廉斯研究公司正在研制的改进的发动机的资料。     

便携式地空导弹探测巡航导弹区域分析

在分析巡航导弹发动机红外辐射特性的基础上 ,分析了便携式地空导弹探测跟踪巡航导弹的可能性 ,估算了便携式地空导弹抗击巡航导弹的探测跟踪区域 ,对便携式地空导弹作战效能分析具有一定的理论价值 .     

巡航导弹的靶场设施

介绍了战斧巡航导弹飞行试验的靶场，靶场所使用的主要设施，包括跟踪系统，数据采集，处理，显示系统、指挥控制系统，通信系统等，着阐述了光测和电测设备，最后对我国发展巡航导弹靶场设施提出几点建设。     

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.     

Stability of the Third Generation Intensifier under Illumination

The stability under illumination of transmission-mode GaAs photocathode sealed in the third generation intensifier is investigated by use of spectral response testing instruments. The variations of spectral response with the illumination times under weak and intense illumination are compared. The variations of photoemission performance parameters are also characterized. The results show that during initial several weak illuminations photocathode behaves no evident decay and a maximum sensitivity is achieved, while under intense illumination the sensitivity of photocathode begin to decrease largely at the first illumination. The calculated performance parameters show that the variation of surface escape probability with illumination times is a direct cause of instability of photocathode. It is also found that under intense illumination peak wavelength is moved towards short-wave and peak response is decreased, which shows that the ability of long-wave response of photocathode is decreased.     

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.     

Passive Acoustic Radar for Detecting Supersonic Cruise Missile

A Passive Acoustic Radar is presented as a necessary complement to electromagnetic wave radar, which will be expected to be an effective means for detecting cruise missiles. Acoustic characteristics of supersonic flying projectiles with diverse shapes are expounded via experiment. It is pointed out that simulation experiment could be implemented using bullet or shell instead of cruise missile. Based on theoretical analysis and experiment, the ““acoustic fingerprint““ character of cruise missile is illustrated to identify it in a strong noise environment. After establishing a locating mathematical model, the technique of acoustic embattling is utilized to resolve a problem of confirming the time of early-warning, considering the fact that velocity of sound is much slower than that of light. Thereby, a whole system of passive acoustic radar for detecting supersonic cruise missile is formed.     

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.     

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.