特征信息

基于STEP原理的机械CAD特征信息建模方法

Feature Information Modeling Method of Mechanical CAD Based on STEP Principles

利用设计历史实现异构CAD系统特征信息交换

Exchange Feature Information of Heterogeneous CAD Systems by Design History

根据特征信息模型对于零件描述的特征需求，从STEP文件中识别产品的特征信息。

Products'feature information is extracted from the corresponding STEP filesaccording to the feature information description in product definition model .

CAPP通过专用数据接口将特征信息转化为CAPP内部格式，实现从CAD系统直接获取信息，达到CAD／CAPP集成的目的。

So as to obtain information directly CAD system , and realize the integration of CAD and CAPP .

基于EMD和AR模型的水轮机尾水管动态特征信息提取

EMD and AR Model Based Dynamic Characteristic Extraction of the Draft Tube of Hydraulic Turbines

对CAD中的特征信息与CAE后处理的信息进行合理的匹配，建立对后处理结果的缺陷解释专家系统。

Coupling the feature information from CAD with output from CAE , an intelligent deficiency interpretative expert system is set up .

因此，ARM必须在进行脉压雷达的匹配截获过程中为其提供必需的脉内调制特征信息，脉压雷达脉内调制特征分析与处理技术也就成为了ARM亟待解决的关键问题。

Therefore , the intra-pulse modulation feature analysis and processing technology for Pulse Compression Radar signal becomes the critical problem to be solved urgently .

激光雷达（Lightingdetectionandranging，LIDAR）是一种主动遥感技术，能够精确地获取地表物体的三维特征信息。

Lighting detection and ranging ( LIDAR ) is an active remote sensing , which can precisely acquire 3D feature information of earth objects .

主元分析（PCA）能够有效地提取数据的特征信息，消除变量间的共线性；

Principle component analysis ( PCA ) can extract the characteristics of input data and eliminate the collinearity of variables .

基于特征信息定位的P2P网络模型：Barnet

An Infrastructure for Attribute Addressable P2P Network : Barnet

基于国际标准STEP，建立了管理信息、形状特征信息、精度信息、技术信息等零件信息模型；

Based on the international STEP standard , it has built the information model of machine part , including management information , shape feature information , precision information , technology information and so on .

研究用感知器和三层BP神经网络识别二维零件图的形状特征信息。

The paper gives a new approach to solve the problem of features recognition and extraction from 2D part drawing by means of perceptron and three layers BP neural network .

激光快速原型技术是在产品特征信息模型基础上，采用CAM技术通过激光选择性固化烧结成型。

After the establishment of the feature model , through CAM technology , prototype materials are solidified and molded heating by laser , which is the principle of RP technology .

研究了基于DEM的流域特征信息的提取，包括水系的提取、子流域的划分、流域边界线的提取等；

The digital analysis of catchments properties from DEM is studied , such as the extraction of river network , boundary of subwatershed and distributed catchments characters .

与Fourier变换法、10点平均滤波法比较后可知，小波分析方法能较好的保留原始数据的特征信息。

Comparing with Fourier transform method and filter method of adopting mean value of ten points , it seems that the wavelet analysis method could better reserve the characters of original test data .

我们对现有的特征信息提取与处理进行了综合分析，把油液监控技术、SPSS、聚类分析、相关分析等手段结合起来，对油液的原始数据进行特征信息的深入挖掘。

We analyze synthetically existing character information and mine primary date of oil character , combining oil monitoring technology , SPSS , clustering analysis with relational degree analysis .

对于SVM模型，选择组块的多种不同特征信息组合和不同的多分类划分方法，训练学习后得到了基于统计的SVM模型。

Via the analysis of the characteristic information from the chunks which have been tagged , we choose the different combination of characteristic information and classification means to realize the SVM models .

在此基础上，构造了5个尺度、8个方向的Gabor小波族，用这40个Gabor小波对图像进行卷积，并取卷积后的幅值作为图像的特征信息。

On this basis , Gabor wavelets with 5 scales and 8 orientations are applied on images and the amplitude of convolution is used as the feature .

该模块针对CAPP的需求，将工艺信息补充到设计特征信息，生成相应的工艺特征信息，并以XML文件的形式输出到CAPP系统当中，最后给出了相关的实例。

According to the requirement of CAPP , the module supply the art and crafts information to the designing feature information , make according arts and crafts feature information and XML files are outputted into CAPP system .

研究结果表明，将基于EMD的方法和基于WD的方法有机结合起来应用，可以更有效地识别原时间序列的特征信息。

The result of investigation show that the combination of EMD-based and WD-based methods may be more effectively in recognizing the main information of the time series .

在信号分析模块中，采用了小波分析等多种信号处理方法，提取DAQ模块提供的传感器特征信息。

In signal analysis module , multi-signals processing methods including wavelet analysis are used to extract and integrate the features of the signals of every sensor from DAQ module .

本文介绍了PPG的测量原理、光电传感器、脉搏波的特征信息提取方法，并概述了光电容积脉搏波法在评价心血管功能方面的研究。

This paper introduces the principle of PPG , photoelectric sensor , the extraction method of pulse waveform characteristic information and some application of volume pulse wave in cardiovascular function monitoring .

Relax算法具有提取参数精度高，数值可靠，对散射点的选择具有一定的鲁棒性等优点，但是此算法是基于简单散射点模型的，没有利用HRRP中含有散射点的几何形状这一特征信息。

The parameters extracted by Relax algorithm are correct and dependable , but the geometrical information included in the high range resolution profile has not been utilized by Relax algorithm because Relax algorithm is based on simple scattering-centers model .

通过对航天光学遥感器MTF模型和遥感图片的分析，从图像中提取出与MTF有关的特征信息，采用人工神经网络（ANN）作为工具，将这些特征信息作为ANN的输入向量。

Through analyzing the modulation transfer function ( MTF ) of the space optical remote sensor ( SORS ) and remote images , the eigenvectors related to MTF in the image are abstracted and used as the input of artificial neural network ( ANN ) .

通过对ART-2神经网络的分析，指出了在信号中的特征信息相对较强，而噪声相对较弱的情况下，利用ART-2可以对信号中的特征信息成分进行增强，并对噪声进行充分抑制。

Through analysis by ART-2 principle , it 's pointed out that signal feature information will be strengthened , but noise will be greatly suppressed by ART-2 under a condition that this signal feature information is superior to noise .

本文研究表明，与分形维数相比，M-R曲线所包含的更丰富的地理空间特征信息使之成为更值得关注的分形分析对象。

This paper showed that , being compared with the single fractal dimension , the M-R curve comprises more abundant characteristic information of geographic spatial details , so it should be considered as a more important fractal analysis object .

研究多传感器特征信息融合问题。

In this paper , multisensor attribute information fusion is studied .

反求测量过程中图像特征信息的提取算法研究

Study on Feature Information Extraction Algorithm of Image in Reverse Measuring

语音识别中多种特征信息综合利用的方法

Methods for combining the information of various features in speech recognition

构建人工神经网络模型对提取的特征信息进行诊断，实现齿轮故障模式识别。

Pattern recognition fault is carried by using artificial neural network .