目标识别

Extracting line spectrum from ship-radiated noise is a key technique for identification of underwater targets in passive sonar system.

线谱是水中目标辐射噪声中重要的特征信息，在被动声呐系统中，线谱提取是水中目标识别的关键技术。

Line spectrum provide significant distinct information in radiation noise of underwater target.

线谱是水中目标辐射噪声中重要的特征信息，在被动声呐系统中，线谱提取是水中目标识别的关键技术。

That is a representation approach of local maximum feature vector of target contour.

在此基础上提出了另一种基于目标轮廓LMFV的目标识别方法。

First local surrounding-line integral bispectrum feature is extracted from the bispectrum of one dimensional range profile of space target, then BP neural network is used for target identification so that the network weights will not be the local lowest value.

提出了基于局部围线积分双谱的空间目标识别算法，从空间目标距离像的双谱中提取出局部围线积分双谱特征。

At last experimental data of radar targets are used to test the performance of the method.

最后利用雷达目标测量数据进行了目标识别的实验。

A new method for extracting radar target pole features from its RCS is presented in this paper.

本文研究了雷达目标识别过程中关于目标的编码、分类特征的提取与选择等问题。

Using the theory of attributed scattering centers we study the feasibility of object-based Automatic Target Recognition.

这些散射中心是目标的物理关系更简明的描述，因而在自动目标识别中可以作为很好的参照物[3]。

Considering the actual precision of homing system and characteristics of target countering torpedo, a thought about guiding is brought forward: target discrimination is focused on while the target at long distance and precise hit while the target at a short distance.

考虑到自导系统实际精度和目标对抗鱼雷的特点，提出了远距离重点在于目标识别，近距离在于精确命中的导引思想。

Target recognition and classification based on the ship target radiation noise has been a very important subject ...

以舰船目标辐射噪声为研究对象，进行目标识别与分类是水声领域中一个很重要的研究内容。

Target recognition and classification based on the ship target radiation noise has been a very important subject in underwater acoustics.

以舰船目标辐射噪声为研究对象，进行目标识别与分类是水声领域中一个很重要的研究内容。

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。