目标

A theoretical model is built to investigate the simulation of the infrared characteristic of the metal structure with the PCM false target.Structure parameters of the PCM false target that suit for the simulation are investigated numerically.According to the results,further request on the improvement of the thermal conductivity of PCM is presented.An experimental platform is built and the numerical model is validated experimentally.Three key thermal characteristic components of the false tank(barbette,wheel and front armor plate) are manufactured and tested,and good results are obtained.A method for the thermal conductivity enhancing of PCM by using aluminum fins is studied,the influence of the structure parameters of PCM plates to the simulation effects are investigated numerically,and the reasonable configuration parameters of the PCM plates used to simulate the steel plates of different thickness are obtained.In the study of the application of heat convection method in IR false target,a passive infrared simulation system is designed to simulate the infrared characteristic of metal constructions.The system is made up of pipe-plate,pump,receiver,and working fluid.

在相变材料应用于红外示假的研究中，通过数值模拟，研究确定了适用于制作假目标的相变材料各物性参数的范围，分析了相变材料制作假目标的可行性，并根据所得结果，选取石蜡为研究对象，建立了相变材料模拟金属构件红外特征的理论模型，研究了适用于模拟各金属构件红外特征的相变材料假目标的相关结构参数，得出了相变材料假目标模拟各金属构件红外特征的理论结果，并对相变材料的导热系数这一物性提出了进一步的改进要求；搭建了假目标实验平台，验证了所建理论模型的准确性；以坦克假目标为研究对象，制作了炮塔、负重轮和前上装甲板三个坦克假目标的关键红外热特征部件，并进行了野外实验，取得了较好的结果；以添加铝肋片作为改进相变材料导热能力的手段，理论研究了此类导热增强型相变材料的相关结构参数对模拟效果的影响，得出了模拟不同厚度钢板红外特征的导热增强型相变材料的结构参数及模拟效果。

In order to resolve the conflict between excessive data storage, time expensive computation and real-time image processing, a method is proposed based on distance transfer with chamfer to extract the position and scale features of each objects, then a five points square predictor is used to estimate the position of objects next time and compute the velocity. Finally, objects are associated using improved weighed nearest neighbor. The algorithm is implemented on the platform of Xilinx XCV300E+ADI Blackfin 532 DSP.

为了解决多目标跟踪中数据存储量、运算量大与实时处理之间的矛盾，提出了一种基于倒角算子距离变换的多目标分离方法，分别提取出各个目标的位置和大小信息，再采用五点二次预测估计出下一场目标的位置从而得到目标的运动速度，最后由改进的加权最近邻算法进行目标特征关联。

In this dissertation, based on the extraction of meaningful polarization information, the polarimetric speckle reduction, polarimetric contrast enhancement, polarimetric classification and ship detection in polarimetric SAR images are systemically studied. During the study, some new concepts and methods are introduced, which are supported by the application to measured Pol-SAR data. The innovations of this dissertation are as follows: 1 A simplified schem is proposed to reduce the complexity of scattering-model-based speckle filtering. 2 Extend the expression of polarimetric correlation coefficient to help distinguishing targets. In addition, introduce the quantized parameters of polarimetric signature so as to show the differentiae in quantity in co-polar power, cross-polar power and shapes of polarization signatures among targets. 3 Define a new parameter of difference degree between targets, which can be used for express the difference between both coherent and distributed scatters.

论文在较系统的研究目标特征量提取方法和特征量所包含的物理意义的基础上，对极化SAR图像降斑、极化对比增强、极化SAR图像分类以及极化SAR图像中海上舰船目标检测等方面进行了研究，并提出了一些新的概念和方法，对实测数据的处理结果表明，这些新的概念和方法对于极化SAR信息处理是有效的，本文的主要创新成果包括以下方面： 1）针对基于预分类的MMSE极化降斑方法实现过程非常复杂的问题，提出了简化方案，并验证了方案的有效性； 2）扩展了极化相关系数的表示方法，这种扩展增强了极化相关系数对目标的区分效果；另外还提出了极化特征图量化参数，可以从量上表征不同目标间相同极化和交叉极化的回波功率差异和极化特征图形状差异； 3）定义了目标间的差异度参数，它不仅可以用于描述相干目标，还可以用于描述分布目标的差别程度。

The operative carefully stalks the target from behind with the garrote ready The garrote is looped over the target's head across the throat and the operative forcefully pulls the target backward as he turns his own body to place his hips in low against the hips of the target.

准备好绞索后，作为袭击者的你悄悄地从后方靠近目标，迅速用绞索套住目标的脖子，用力向后拉绞索的同时转过身把自己的臀部顶住目标的臀部，转身的同时绞索会深深的勒入目标的喉咙；当目标的重心完全放到臀部之后向上用力将目标从肩部摔出，目标将死于窒息或者脖子折断。

Aimed to two major problems: one is not decidable and the other is no clear semantics. We construct a framework with explicit representation and formal semantics of goalsgoal description logics, which integrates two types of goals: declarative goals and procedural goals into one concept based on description logics. In addition, the goal plan is defined and analyzed, and some reasoning problems, such as goal consistency and goal satisfiability, are discussed. Contrary to traditional ways of goal description, GDLs can bridge the gap between theory and practice in a natural way.

针对传统的目标描述中存在的不可判定性以及没有清晰的语义等问题，在描述逻辑(description logics，DLs)上，将宣称型和过程型2种类型的目标描述有机地整合在一起，从而构建了具有清晰语义与可判定性的形式化框架--目标描述逻辑(goal description logics， GDLs)，在此基础上，定义了该框架下有关规划规则；建立了可用于判定目标一致性、目标可满足性的方法，与传统的目标描述方法相比，目标描述逻辑为主体领域模型提供了一种更有力的形式化工具，同时为智能主体的模型和设计提供了很好的理论工具。

A new scheme of target discrimination in SAR images, consisted of frames, models and algorithms, is proposed. Under such a scheme, a global frame, combining orderly the algorithm based on feature extraction and that based on knowledge, is then proposed. Moreover, in the method of target discrimination based on feature extraction, a "loose-coupling" model is given. The existing features are chosen and three new features about the contrast are given under the "loose-coupling". Meanwhile, an algorithm of feature selection based on Genetic Algorithm is also modified to solve the problem that the existing algorithm can not evaluate the goodness-of-features comprehensively. The weighted quadratic distance discriminator is designed to improve the performance of target discrimination. Finally, a method based on the knowledge of target groups to remove clutter false alarms is also given.

提出了一种目标鉴别的新方案，该方案包括目标鉴别的框架、模型以及算法；提出了基于特征选取鉴别和基于编队提取鉴别"序贯"连接相结合的目标鉴别框架；在基于特征选取进行目标鉴别的方法中，提出了目标鉴别的"松耦合"模型；提出了"松耦合"模型下目标鉴别的特征提取方法，包括已有特征的筛选和3个新的对比度特征的提出；改进了一种基于GA的特征选择方法，克服了已有方法对特征优劣评价不全面的问题；设计了加权二次距离鉴别器，提高了鉴别的性能；研究了基于目标编队知识进行进一步杂波虚警剔除的方法。

It was testified that 4 achievement goals labeled mastery approach goal, mastery avoidance goal, performance approach goal and performance avoidance goal did exist during the middle school age , and such achievement goals structure is better than its dichotomy and trichotomy structure.

研究证实在初中阶段存在掌握趋近目标、掌握回避目标、绩效趋近目标与绩效回避目标这四种成就目标，成就目标的四分结构要优于成就目标的三分与二分结构。

On the other hand, with the purpose of fuzzy feature extraction and fuzzy classification device design, the undulatory property of maximum and minimum scattering power corresponding respectively to the maximum and minimum eigen-polarization has been investigated in frequency domain. Furthermore, the anisotropy polarization degree of target, which is determined by both maximum and minimum scattering power of target, has been studied; meanwhile, the dynamic changing characteristic of eigen-polarization on Poincare polarization sphere has been investigated by means of the conception of polarization frequency stability, the research result shows that PSD value has a big jump near π, forming a sharp pulse, and different target has their individual distribution property of PSD pulse.

另外，围绕目标模糊特征提取及模糊分类器的设计，研究了目标最大、最小本征极化所对应的目标最大、最小散射能量随观测频率的起伏特性，考察了由目标最大、最小散射能量共同决定的目标的各向异性极化程度；同时，采用极化频率稳定度的概念，研究了本征极化在Poincare极化球面上的动态变化特性，在最大、最小散射能量相等的频率点上，PSD曲线呈现为幅度接近π值的尖锐脉冲，反映了目标极化散射结构对这一频率跳变极为敏感，但不同目标的这种PSD曲线特征又有很大的不同。

Based on the meaning of object state in tracking theory, a novel representation for object state is proposed, which differs from traditional one with only locomotors state. In this thesis, model parameters may also represent the object state in according to different situations. Thus, the localization and characters of object are filtered synchronously, which accelerates the matching and tracking speed in real-time tracking system, especially for complicated object. In summary, this thesis studies the methods of template obtaining, updating and matching, etc.

从跟踪理论的目标状态所表示的意义出发，提出了将目标模型参数与运动参数同时作为目标状态进行滤波的方法，改变了传统方法中只利用目标运动状态的情况，在确定目标位置的同时能够匹配目标轮廓或其他特征，对于复杂的目标，可以快速鲁棒的完成视频帧中的模板匹配和跟踪。

This text from analyze the basic theories of the target management to commence, study basic method and steps of the teacher troops target management of the implement military school, and began to set up the teacher troops target management system of the military school from here, putting forward the system to set up of limit and excellent turn the measure; Around the system set up, in a specific way divided the line the implement target management of layer structure, designed the workflow of the teacher troops target management of military school, set up the index sign system of the teacher troops target management of the military school; In completing the foundation of the teacher troops target management index sign system of set up the military school, according to manage the analysis of the index sign contents to the teacher troops target of the military school, adopt AHP and layers to analyze the method to make sure its index sign main factor and its powers.

本文立足军校教员队伍目标管理的概念和基本理论，研究了实施目标管理的基本方法与步骤，并由此着手构建了目标管理体系，提出了体系构建的局限和优化措施；围绕体系构建，界定了体系概念，确定了管理模式，划分了实施目标管理的层次结构，设计了军校教员队伍目标管理的工作流程，构建了军校教员队伍目标管理的指标体系：在完成构建军校教员队伍目标管理指标体系的基础上，根据对目标管理指标内容的分析，采用德尔菲法和层次分析法确定了其指标要素及其权，并加以实例验证。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了