1) ridge
[英][rɪdʒ] [美][rɪdʒ]
脊线
1.
Aiming at the shortage of wavelet transform in extracting in-pulse features from FSK signal,a united time-frequency analyse method combined with time-frequency reassignment and time-frequency ridge is introduced.
针对小波变换法在提取频率编码信号脉内特征中的不足,提出了将时频重排和时频脊线相结合的时频联合分析方法。
2.
Aiming at the poor SNR performance of wavelet-ridge in extracting in-pulse features,an novel unite method for-frequency analysis is proposed.
针对小波脊线法在提取雷达信号脉内特征时信噪比性能较差的缺点,本文基于小波变换谱,将时频重排和时频脊线相结合,提出了一种新的时频联合分析方法。
3.
Gabor wavelet spectrogram is reassigned to extract Time-frequency ridge.
通过对非线性结构响应的Gabor小波谱进行重排,从中提取出反映系统频率的时频脊线,由脊线得到非线性结构的瞬时频率和幅值,进而识别出结构响应信号的骨架曲线。
2) ridge line
脊线
1.
The ridge line slopes northward with hight while southward in 160°E～180°.
西太平洋地区副高脊轴随高度向北倾斜 ,而 1 60°E～ 1 80°地区向南倾斜 ;北太平洋中、西部副高在北进期的脊线活动均存在显著的 1 0～ 2 0 d周期低频振荡 ,东亚季风区还具有明显的准 40 d振荡周期。
3) ridges
[英][ridʒ] [美][rɪdʒ]
脊线
1.
The frequencies and viscous damping ratios are obtained by the ridges of the wavelet coefficients.
利用小波变换时频分析的特点 ,用Morlet复小波函数对线性系统的自由振动响应进行小波变换 ,通过脊线上的小波系数进行系统识别 ,并用数值计算证实此方法的正确性 。
2.
According to the theory of Carmona,there is a simple relationship between wavelet coefficient and the original signal,and the maxima line of continuous wavelet transform locates the ridges.
根据Carmona的多脊线识别理论,连续小波变换时频平面上模极大值线所在位置就是脊线位置,其小波系数与时域信号之间存在简单的对应关系,利用Crazy Climber算法提取小波变换系数的脊,就可以重构时域信号。
4) Ridgeline tracking
脊线跟踪
1.
In this paper,a new algorithm based on ridgeline tracking is proposed.
在脊线跟踪的基础上,直接在灰度图像上,沿纹线方向追踪血管脊线,在追踪的过程中,局部增强图像,局部设置域值,最后得到一幅血管脊线骨架图和附加其上的细节点信息。
5) wavelet ridge
小波脊线
1.
Detection of LFM signals based on wavelet ridge extracting and Hough transform;
基于小波脊线-Hough变换的LFM信号检测
2.
Multi wavelet ridge extraction based on reassigning algorithmand singular value decomposition
基于重分配配算法和奇异值分解的多小波脊线提取
3.
In order to solve the effect of the SNR and the problem of parameter estimation,this article is based on the wavelet ridge of asymptotical signal,and the relation between instantaneous frequency and wavelet ridge,the authors make use of this theory to solve the instantaneous frequency measurements of noncooperated signal.
从渐进信号的小波脊线出发,根据小波脊线的迭代算法以及瞬时频率与小波脊线之间的关系,对非合作源信号频率进行估计。
6) ridge alignment
脊线校准
1.
Fingerprint minutia matching algorithm based on ridge alignment;
基于脊线校准的指纹细节点匹配算法
补充资料：脊线
脊线
edge of regression
脊线汇吨母Of任gI妞..;ao3opara衅6p哎，}，回归棱 一种由流形到E侧为d空间的可微映射的奇异性(51叩山rity ofd迁rerentinblerr以Ppm罗).在由曲面M到三维Euclid空间尸的映射f这一最简单情形，脊线指的是M中的一条光滑曲线L，具有光滑象f(L)C公，使对任何p任f(L)，M与过p且垂直于f(L)的平面7r的交是一尖点(拙p).脊线出现于伪球面中. M.H.Bo认够xo.c盆，认撰【补注】亦见可展曲面(山代响阶比s侧知卯)的脊线· 脊线也称为尖棱(那p浏初罗).它是AJ型稳定焦散线(以璐tic)，见「All，331页.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条