目标识别

All above laid a foundation for the research of polarimetric information processing and application. Then, target optimum polarization and polarimetric synthesis technique were studied. By constraining polarimetric states of transmitting and receiving antennas, co-polarized and cross-polarized signatures were obtained. Because the received wave was partially polarized, completely polarized, completely unpolarized, and total available power signatures were defined based on the power of the return wave.

接着，论文深入研究了目标最佳极化和极化合成技术，通过约束收发天线的极化状态可以得到共极化特征图和交叉极化特征图，由于雷达接收的电磁波通常是部分极化的，根据接收波的平均功率密度可以得到未极化特征图、完全极化特征图和匹配极化特征图，在极化特征图空间中搜索可以很容易地获得目标的最佳极化，这些目标最佳极化可以作为极化目标识别和分类的极化特征。

Target discrimination is a key technique in missile defense system, and after analyzing the defense system configuration, an integrated target discrimination mathematical model based on recursive temporal-spatial data fusion is performed, which brings the expert knowledge, environmental information and measure information into the integrated discrimination flow.

摘要目标识别是导弹防御系统的支撑技术，本文参考导弹防御系统配置，建立了基于时空信息序贯融合的综合识别数学模型，将专家知识、环境信息以及测量信息共同纳入综合识别流程。

The dissertation tries to combine signal processing and information fusion with the application background of under-water recognition so as to improve the reliability and accuracy of eradiate noise recognition system.

本文试图把现代信号处理技术与信息融合技术相结合，应用到具体的水下目标识别领域，以提高水下目标被动识别系统的准确性和可靠性。

With the improvement of the target identifying technology and computation, target identifying ways and varieties must be increased in a rapid speed and the system must tend to be perfect in future, it will enjoy an unceasing extend application and can also provide important function for the technologies in such fields as controlling, commanding, monitoring, reconnoitering and information in military affairs.

随着目标识别技术和算法的发展与改进，目标识别的方法和种类将会不断增加，系统的功能会更加完善，具有继续不断扩展的应用前景，军事上将会对控制、指挥、监视、侦察、情报等方面技术的发展也具有一定的促进作用。

Antiship missile ; target identification ; target signature ; fuzzy identification model ; fuzzy classification of target model

反舰导弹；目标识别；目标特征；模糊识别模型；模糊分类判决

Feature sequences of an image are obtained from the feature vectors of multi images of the same target in different azimuths.

实验结果表明，该方法可明显提高目标的正确识别率，是一种有效的合成孔径雷达图像目标识别方法。

The energies in different scales after the wavelet decomposition respectively are applied to extract feature, and absorptive method based on Dempsters rule is used in feature fusion of multi-source information. The results of the simulations between absorptive method and nearest neighbor method are compared, which show the effectiveness of evidence reasoning used in multi-target recognition.

利用了小波分解尺度细节信号能量特征作为四类目标声信号提取的特征，采用基于D-S的新组合规则吸收法对多传感器信息进行特征融合，并对吸收法及最近邻法两种情况下的识别效果进行了对比，仿真结果表明证据推理为声信号多目标识别提供了一种有效的方法。

Space object recognition technology is used to determine the type, attribute and threat of the space objects.

空间目标识别技术是对在外层空间运行的目标进行的类型、属性识别和威胁判断。

Secondly, the data characteristic of true-false target recognition problem is discussed, and the difficulties of dealing with this problem by two-class SVM are pointed out.

然后分析了真假目标识别问题的数据特点，指出了2类支持向量机在处理真假目标识别问题时存在的困难。

In this work, some color invariance is derived from color model as the object recognition feature, and the HP affinity estimated by entropic graphs is used as the object similarity measure.

依据光照模型推导出与环境光照无关的颜色不变量，并将其作为目标识别的特征，利用熵图估计出的特征向量的HP相似度作为相似性评价标准进行目标识别。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。