查询词典 target

In this dissertation, the fire schemes of weapon system are studied, and the stochastic dynamic weapon-target assignment method based on Markov decision process, and taken target threat in objective function is established.

论文对武器系统的射击方案进行了分析研究，同时提出了把目标的威胁程度记入指标函数的基于Morkov决策过程的随机动态火力目标分配方法。

Using a planar target as intermedium, an optimized object function of the position and orientation transformation matrix of the sensor is established; and the matrix, namely registration matrix, is derived from the feature points on the planar target.

采用一个平面靶标作为中介，建立了传感器位姿变换矩阵的优化目标函数，根据靶标上多个特征点求解出该矩阵，即拼接矩阵。

ABSTRACT The influence of the laser focus, environmental and target parameters on the mechanical effect and acoustic wave effect of plasma shock wave produced during the interaction between the laser and the target are investigated in this paper.

本文从理论和实验两方面研究了激光聚焦参量、环境参量和靶参量对激光与靶相互作用产生的激光等离子体冲击波力学效应和声波效应的影响。

The characteristic in targets microdoppler that derives from the micromotion of the target is generally unique.Consequently,it can be utilized to automatic target recognition and classification.

目标微动产生的微多普勒特征，通常被认为是目标独有的特征，可用于确定目标的性质，实现对目标的检测、识别与分类。

In this work,based on the principle of microdoppler,the mathematical model between missile and decoy is constructed,and characteristics in microdoppler are analyzed through simulation,thus distinguishing the target from heavy decoys and the missile.It offers a new reassuring way to the discrimination of the real or false targets.Keywords : target recognition;warhead;decoy;microdoppler;micromotion

文中在对微动目标微多普勒分析的基础上，建立了导弹与诱饵的数学模型，采用短时傅里叶变换的方法对回波信号进行微多普勒特征提取，仿真分析了导弹与诱饵的微多普勒特征，通过研究其时频分布特点的差异成功的识别出了真假目标，从而为弹道导弹与重诱饵的识别提供了一个新的有效方法。

Fifty female patients who were selected to schedule for mammary gland tumor excision surgery, were divided into 2 groups(n=25 in each group): group A: received propofol's half-effective concentration at 3.0 μg/ml in Marsh model by TCI; group B: received propofol's half-effective concentration at 4.0 μg/ml in Marsh model by TCI. All patients were given remifentanil in Minto model by TCI after being given propofol which reached the balance between effect-site concentration and blood plasma concentration. The target concentration of remifentanil was determined by a modification of Dixon's up-and-down method. Laryngeal mask insertion was attempted after 10 mins, the insertion condition and success rate were observed, then the suitable target concentration of remifentanil(ECe50) were calculated.

50例女性乳腺良性手术患者随机分为2组（n=25），A组：靶控输注丙泊酚效应室浓度3.0 μg/ml；B组：靶控输注丙泊酚效应室浓度4.0 μg/ml（均为Marsh药代模型），待其效应室浓度和血浆浓度达平衡后给予靶控输注效应室浓度瑞芬太尼，运用Dixon's序贯法确定喉罩置入时瑞芬太尼浓度，10分钟后置入喉罩并观察喉罩置入条件与成功率，计算出相应的瑞芬太尼适宜靶浓度（ECe50值）。

MIRV missile separation rule was built. Preliminary optimum design and optimize separation sequence were carried out. According to target attacking sequence and separation sequence which are preliminarily certain, the optimum separation sequence was determined by building compatibility rule of target attacking sequence and MIRV missile separation sequence.

结合多弹头导弹弹头特性建立了子弹头的分导原则，对子弹头的分导顺序进行了初步设计与优化根据确定的目标打击顺序和优化的子弹头分导顺序，建立目标打去顺序与子弹头分导顺序的一致性原则来确定子弹头的最佳分导顺序。

The miss distance between the missile and target is very important for people to judge the performance of a missile on the target drone.

在靶场试验中，脱靶量对鉴定导弹的性能起着至关重要的作用。

In order to adapt the demand of the future war,the mondial ballisticians are making great efforts to increase the initial velocity of the gun to antagonize the future high performance flying target and armored target.

为适应未来战争的需要，世界各国弹道学家都在努力提高火炮弹丸的初速，以对付未来高性能飞行目标和装甲目标。

The ratio C is difference between target value and distractors values divided by distractors values. Three hypotheses are as follows:(1) A function of slopes to C absolute values is monotone decreasing function.(2) Slopes are equal when C values are same.(3) If C absolute value is bigger than Cp absolute value, searching for a target is parallel search, or is serial search.

为了解决上述问题，笔者引入目标值和干扰子值的差值与干扰子值的比值C，提出了以下三个假设：（1）目标搜索斜率对C值绝对值的函数是单调递减函数；（2）当C值相同时，其目标搜索斜率应相等；（3）当|C|〓|〓|时，目标搜索是平行搜索，否则为系列搜索。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。