期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
APPLICATION OF CHAOS IN MEASUREMENT 被引量:2
1
作者 刘文波 于盛林 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2002年第2期113-117,共5页
Using the high sensitivity to initial values of chaotic systems, this paper describes an application of chaos in the field of measurement. A general method for signal coding based on symbolic sequences and the relatio... Using the high sensitivity to initial values of chaotic systems, this paper describes an application of chaos in the field of measurement. A general method for signal coding based on symbolic sequences and the relationship between the variable (to be measured) and its symbolic sequence are presented. Some performances of the chaos based measurement system are also discussed. Theoretical analysis and experimental results show that chaotic systems are potentially attractive in the field of measurement. 展开更多
关键词 chaotic systems symbolic sequences MEASUREMENT ERROR
下载PDF
New Families of Rational Form Variable Separation Solutions to(2+1)-Dimensional Dispersive Long Wave Equations
2
作者 WEN Xiao-Yong 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第5期789-793,共5页
With the aid of symbolic computation system Maple, some families of new rational variable separation solutions of the (2+1)-dimensional dispersive long wave equations are constructed by means of a function transfor... With the aid of symbolic computation system Maple, some families of new rational variable separation solutions of the (2+1)-dimensional dispersive long wave equations are constructed by means of a function transformation, improved mapping approach, and variable separation approach, among which there are rational solitary wave solutions, periodic wave solutions and rational wave solutions. 展开更多
关键词 improved mapping approach variable separation method (2+1)-dimensional dispersive long wave equations symbolic computation
下载PDF
加权局部二值模式和块线性判别投影的人脸识别方法 被引量:3
3
作者 曾智勇 池燕玲 郑启财 《福建师范大学学报(自然科学版)》 CAS CSCD 北大核心 2014年第3期28-33,共6页
提出一种加权的局部二值模式和块线性判别投影的人脸识别方法,它首先编码人脸局部区域中心像素与邻域像素的灰度差的符号分量,体现了人脸局部结构的重要性.其次利用了局部二值模式的幅值分量作为像素局部二值模式的权重,最后利用块线性... 提出一种加权的局部二值模式和块线性判别投影的人脸识别方法,它首先编码人脸局部区域中心像素与邻域像素的灰度差的符号分量,体现了人脸局部结构的重要性.其次利用了局部二值模式的幅值分量作为像素局部二值模式的权重,最后利用块线性判别投影降低提出的描述符的特征维数,同时增强它的判别能力.在FERET人脸库的大量实验结果表明该算法可以获得有效的性能提升. 展开更多
关键词 局部二值模式 符号分量 幅值分量 加权 块线性判别投影
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部