查询词典 pattern identification

Multimodal biometric fusion and identification technique can improve the performance of identification system.

多生物特征的融合与识别可提高身份识别系统的整体性能。

Several key issues related to damage identification of structural health monitoring are expounded. A method for damage positioning, which is on the basis of the normalized change ratio of frequency, is developed. Then, a set of damage identification techniques based on modal parameter and neural network is put forward.

阐述结构健康监测中损伤识别的关键问题，介绍基于正则化的频率变化率的损伤定位方法，提出一套基于模态参数和神经网络的损伤识别技术。

This thesis is divided into six parts. The first chapter is preface, the current status of research in the inverse problems for parabolic partial differential equations is reported; the second chapter is "regularization methods for numerical differentiation and their applications ", in this chapter we investigate many regularization methods from a viewpoint of regularization theory and algorithm, some applications in the inverse problems for parabolic partial differential equations are given; the third chapter is "spectral regularization methods". Based on Fourier analysis, within the framework of regularization theory, we apply the spectral methods to some ill-posed problems. Many numerical experiments are done in order to show the validity of the methods; the fourth chapter is devoted to wavelet dual least squares method and a revised wavelet method; in the fifth chapter,we combine finite difference method with method of lines and apply it to the backward heat conduction problem in time; in the sixth chapter "identification problems for unknown source ", the essence and the degree of two problems related to source identification are pointed out, at the same time, some numerical methods are reported.

本文分为六个部分，第一章前言简要分析了国内外抛物型偏微分方程反问题的研究现状；第二章数值微分的正则化及其应用从正则化理论和算法的角度出发，考察了许多正则化方法，还给出了数值微分在抛物型偏微分方程反问题的一些应用；第三章谱正则化方法是在Fourier分析的基础上，在一般正则化理论的框架下，给出了这种方法在各种不适定问题中的应用，数值实验表明谱方法是有效的；第四章研究了小波对偶最小二乘方法和改进的小波方法；第五章主要研究了有限差分方法结合线方法在时间反向热传导问题中的应用；第六章是未知源识别问题，主要指出了两类未知源问题的不适定程度和不适定本质，同时报告了一些数值方法。

Structural identification ; parametric identification ; particle swarm optimization ; combinatorial optimization

结构辨识；参数辨识；粒子群优化算法；组合优化

Abtract This paper presents researches into the on—line identification of dynamic parameters of synchronous generators and power systems. The work is mainly in the following two fields:Ⅰ On—line identification of transient and sub—transient parameters of synchronous generators A new corrected extended Kalman filter is developed, in which, a corrected term is added in the equation of the partial differentiation of the state variables with respect to the parameters.

本文研究了同步发电机和电力系统的动态参数的在线辨识，所做的工作主要在以下两个方面：一、同步发电机的暂态和次暂态参数的在线辨识本文提出了一个校正扩展卡尔曼滤波技术，在状态对参数的偏导方程中加入了一个校正项。

Rehd. by identification of pharmacognosy, and to provide the scientific evidence for identification and application.

目的对多民族常用的植物药透骨草进行生药学鉴定，为其鉴别及应用提供科学依据。

Cairica by identification of pharmacognosy, and to provide the scientific evidence of identification and application.

目的对多民族常用的植物药五爪金龙进行生药学鉴定，为其鉴别及应用提供科学依据。

But the former study was only the identification analysis of the existing of the major gene and polygene, the identification of genetic model and the analysis of genetic effect in major gene and polygene mixed inheritance model of quantitative trait from different animal-plant.

但以往的研究只是对不同动植物主基因-多基因混合遗传的数量性状的主基因和多基因存在的鉴别分析，以及遗传模型识别和各种遗传效应的分析。

Abstract—With identity fraud in our society reaching un- precedented proportions and with an increasing emphasis on the emerging automatic personal identification applications, biomet- rics-based verification, especially fingerprint-based identification, is receiving a lot of attention.

摘要，身份欺诈在我们的社会实现联合国先例的比例，并有越来越重视新兴的自动个人识别应用，皇家注册测量师协会为基础的核查，特别是指纹识别，收到了很多的关注。

In this report the prepossessing techniques has been proposed to assist various kind methods of structural system identification in simplifying the whole system identification procedure.

中文摘要本文提出一套前处理技术，藉以辅助各种结构系统识别方法，简化整个系统识别的作业流程。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。