1) wavelet ridge
小波脊
1.
Improved method of instantaneous frequency estimation based on wavelet ridge
基于改进小波脊提取算法的数字信号瞬时频率估计方法
2.
In doing so,we obtain wavelet ridges by extracting the maximal wavelet coefficients of the free decrement response of the system.
该方法基本原理为通过对系统自由衰减响应的小波系数取极大获取小波脊,借助小波脊理论确定系统的各阶模态频率与指数衰减系数iζωni,采取求中值的方法获取衰减稳定段的参数,进而识别出各阶模态阻尼比。
3.
An algorithm is developed for processing the ultrasonic signal by first extracting the wavelet ridge using the asymptotic wavelet transform and calculating the moving entropy which detects the flaw location and separates the flaw signal and noise.
根据超声信号通常是单频载波脉冲信号，具有渐近信号的特性，提出了一种基于小波脊的超声信号处理算法。
2) 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。
3) wavelet-ridge
小波脊线
1.
Simulation of PSK Carrier-Frequency Extraction Based on Improved Wavelet-ridge Method;
基于改进小波脊线的PSK信号载频提取技术仿真
2.
The in-pulse frequency-coded signal is denoised based on wavelet analysis firstly,and then the wavelet-ridge is used to extract the in-pulse characteristics.
提出了一种首先用小波分析对脉内频率编码信号进行去噪,在此基础上再利用小波脊线法提取脉内特征的方法。
4) wavelet ridge algorithm
小波脊法
5) FRAT
[英][fræt] [美][fræt]
有限脊小波变换
1.
First,to use FRAT to transform the images and get the rotation and translation invariant texture of images,then make use of reflecting gray space change regularity of intervolved Matix and having multi-scale analysis ability of Wavelet transform describing the texture feature of image.
该方法首先利用有限脊小波变换进行旋转不变纹理的实现,再利用反映图像灰度空间的变化规律的互相关矩阵结合小波变换的多尺度分析进行纹理特征描述。
6) improved wavelet-ridge method
改进小波脊线法
补充资料：刀脊
1.刀背。 2.喻陡险之道。
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