wavele相关论文
以小波变换和分数傅里叶变换为基本理论依据，介绍了一种基于小波变换的分数阶傅里叶变换多图加密技术，丰富了多图加密的方法。该方法......
The development of Web-based global 3D visual system has made progresses. However, there exist few mature and effective ......
A wavelet analysis method is introduced to study the possible periods of PKS 1510-089 in radio bands. By compiling the r......
A narrow-linewidth master-oscillator fiber power amplifier system was presented,in which an ultrastable, continuous-wave......
To detect the laser doppler signal,the unknown signal is tracked by the known signal using the concept of topological co......
Numerical analysis of photonic crystal fiber with chalcogenide core tellurite cladding composite mic
Kinds of photonic crystal fibers with chalcogenide core tellurite cladding composite microstructure are proposed. The mu......
NO.1ARTICLESADiapnosticsAnalysisofl997ll998ENSOEventandtheRoleofIntra。SeasonalosclllationintheTropical Atmosphere…·’......
Instantaneous spectrum estimation of earthquake ground motions based on unscented Kalman filter meth
Representing earthquake ground motion as time varying ARMA model,the instantaneous spectrum can only be determined by th......
The crystal structure of 2-(2-pyridyl) benzimidazole was determined by single- crystal X-ray diffraction at 193(2) K. It......
In China, accelerating industrialization and urbanization following high-speed economic development and population incr......
Structural Design and Hydrodynamics Analysis of a Self-reconfigurable Propeller1 DING Xilun1 WANG Zhengrong1, 2 ZHANG Wu......
Spatial and Temporal Variability of Drought Patterns over the Continental United States from Observa
The aim of this study is to analyze the spatial and temporal structure of drought over the continental United States (CO......
在非线性迟滞阻尼减振器的建模中可以把减振器恢复力分为几部分:非线性弹性力,非线性阻尼力,以及由于摩擦引起的迟滞力. 恢复力与......
Astronomical forcing of sedimentary cycles of Late Eocene Liushagang Formation in the Bailian Sag,Fu
Sediments in the Liushagang Formation of Late Eocene form a group of key hydrocarbon play fairways in the Beibuwan Basin......
Dispersion and dispersion slope compensation of 10-Gb/s pulses using microstructure fibers (MFs) is demonstrated experim......
Wavelet domain adaptive filtering algorithm for removing the seamless pipe noise contained in the ma
本文通过对荣华二采区10...
Using the acoustic emission locating technology to monitor the health of the structure is important for ensuring the con......
水汽在全球水文和气候变化上扮演着非常重要的角色。选取了中国台湾GPS水汽时间序列作为算例数据,分析了水汽与地理环境的对应关系......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
The main purpose of this paper is to give a review on recent advances of wavelet in probability and statistics. Many int......
超高灵敏度的信号探测在石油勘探、地震预报和安全监测等领域都具有重要的应用价值。近年来出现了一种以分布反馈(DFB)光纤激光器......
Wavelet domain adaptive filtering algorithm for removing the seamless pipe noise contained in the ma
With the widespread application and fast development of gas and oil pipeline network in China, the pipeline inspection t......
In the research of path planning for manipulators with many DOF, generally there is a problem in most traditional method......
准确定位主谐波源位置是采取合理措施抑制谐波污染的重要前提.由非正弦条件下的功率分解出发,基于IEEE Std.1459-2010功率标准定义......
在小波分析的基础上,采用优化方法同时从多个信号提取电力系统振荡模式和模态。首先根据小波脊线处的小波系数幅值判断信号对待辨......
在临床实践中,数字减影技术是一种无法替代的有效的血管可视化工具,由于能源能量的波动、设备噪声、病人移动、器官蠕动等,通常的......
STUDIES ON DERIVATIVE FLUORIMETRY Ⅲ. DETERMINATION OF TRACE AMOUNT OF TERBIUM IN THE PRESENCE OF SOD
The derivative fluorimetric characteristics of Tb—SDS and Tb—SDS—phenanthroline systems have been studied. The optimu......
利用小波变换对图像进行数字处理，实现了图像的区域分割，并运用直方图方法和高宽比方法对小波图像处理结果和光学图像处理结果进行了......
为解决多聚焦图像融合问题,提出了一种基于不可分离小波框架(NWF)变换的融合算法:首先,对各原图像进行NWF变换;然后,根据变换后系......
矩作为模式的特征在二维图象模式识别中应用很广。该文根据Hu矩、Zernike矩、Pseudo-zernike矩、Legendra矩、旋转矩和复数矩的原......
本文将空间变换的思想运用到数字图像加密中,证明了小波包分解对图像加密的可行性.分析小波包分解固有性质和现象对加密的影响,指......
在研究JPEG2000中的感兴趣区域(ROI)编码算法优缺点的基础上,结合嵌入式编码理论和人眼视觉特性,利用等级树分集(SPIHT)编码算法的......
采用小波神经网络对噪声像素进行模式识别,将其与无噪像素区分开,然后对噪声像素按照域值为其分配相应的比例系数,最后与中值滤波......
为了解决远程激光测距回波信号信噪比低、信号难以检测的问题,提出了一种基于EMD的小波阈值去噪方法。首先,将脉冲回波信号通过EMD......
针对传统包络解调分析方法需要人为选定共振频带的缺陷，提出一种用Morlet小波和连续小波变换实现的包络检波算法．该方法利用小波变换......
近场加速度脉冲很早就被人们观察到,由于其对结构的不利影响,多年来一直为不少研究者所关注.以往的研究者多从速度脉冲的研究入手,......
针对独立分量分析（independent component analysis，ICA）的基本生成模型，在采用负熵的快速定点ICA算法的基础上，应用渐近正交化的FastIC......
通过测试接头区轨面平顺性状态不同的两测点的轮轨力,研究分析轨面短波不平顺与高频瞬时冲击力P1、低频冲击力P2之间的关系.在对轨......
为了精确检测同步电机参数，提出了一种小波变换和矩阵束相结合的新算法。该方法运用小波变换对短路电流进行消噪处理，提高其信噪比。......
为了快速、准确地检测织物上存在的疵点,提出了一种基于计算机视觉的织物疵点自动检测方法。用具有高分辨率的CCD摄像头,在可移动......
为了减少动调陀螺仪(DTG)随机漂移的建模误差,提出了一种基于灰色理论的新型混合建模方法.此方法将小波分析理论引入到灰色模型中,......
为了降低视频压缩中块匹配的运算复杂度,避免块匹配陷入局部极小值且维持较高的压缩比,提出了一种快速块匹配的搜索算法.首先判断......
虚拟仪器相对于传统仪器具有开放性、易用性、性价比高的特点．目前已经在检测系统中得到广泛应用。本文采用NI公司的LabVIEW软件开......
提高电池荷电状态（SOC）估计的准确性对电动汽车电池管理系统的研究至关重要。根据历史实验数据，在分析了电池电压、电流、电池表面温......
利用频谱分析和小波包分析技术，针对敲击状态下搭接梁螺栓联接结构的加速度信号进行分析，根据不同预紧状态下响应信号的固有频率和优......
本文使用小波分析中的Mallat算法和图形显示算法相结合的方法,成功的去除了脉搏波中的呼吸干扰。采用Matlab Builder for .NET,将......
小波阈值去噪方法是一种实现简单、效果较好的小波去噪方法。本文在对所采集的带噪语音信号进行了小波阀值去噪以后,利用复倒谱对......
对建筑电耗的有效预测能够为用能诊断、运行优化及区域能源管理提供有效的支撑。基于支持向量回归,建立复合的数据驱动模型来预测......
针对轨道交通直流牵引供电系统列车启动负荷冲击电流引发的DDL保护误启动问题,提出了基于小波包变换和自组织映射(SOFM)神经网络的......
