该方法利用小波和小波包各自的时频分解特点,实现了暂态电能质量扰动的自动检测和分类。
Using the different time-frequency characteristics of wavelet and wavelet packet, the proposed approach can avoid the noise and complete the detection and classification of transient power quality.
他的研究兴趣包括图像和多维信号处理,计算图像,小波和多尺度几何分析,可视化信息的表述。
His research interests include image and multi-dimensional signal processing, computational imaging, wavelets and multiscale geometric analysis, and visual information representation.
本论文的核心内容是:应用谐波小波和人工神经网络理论对转子轴承系统动力参数——临界转速进行识别与修正。
The central content of this thesis includes identifying and revising the critical rotate speed-dynamic parameters of rotor-bearing system by the artificial neural network theory and harmonic wavelet.
针对红外图像存在的对比度差、信噪比低等问题,提出了一种基于小波和侧抑制网络的红外图像对比度增强算法。
For infrared image with the characteristics of low contrast and low signal-to-noise, a infrared image enhancement method based on Wavelet Transform and Lateral Inhibition Network is presented.
第三种算法根据全变差模型在去除噪声时的缺陷,提出了将非抽样小波和全变差模型结合起来的自适应混合去噪策略。
The third algorithm proposes a hybrid image denoising algorithm based on wavelet shrinkage and TV diffusion owing to the disadvantage of TV diffusion.
利用MATLAB软件包中的信号处理部分,用小波和滤波器方法为实验数据去噪声,并比较各种方法的特点和适用范围。
Signal procession is analysised by Wavelet Toolbox and filters based Signal process Toolbox of MATLAB. Specialties and using areas of the two ways are studied.
本文针对小波分析之后提取的特征向量,构建了与之相适应的神经网络进行故障识别,并对小波和神经网络的结合方式进行了设计。
After wavelet analysis extracts feature vectors, the paper constructs corresponding neural network for fault identification, and designs the combination of wavelet and neural network approach.
本课题就是针对上述问题,通过小波变换和分形这两种方法来进行图像压缩,对比起压缩效果,总结出分别适合于小波和分形压缩的图像。
It USES wavelet and fractal to compress image and compare its compression result. Then sum-up what is fit for wavelet and fractal compression.
针对此问题,提出了一种基于小波和高阶累积量相结合的分类算法,先对MFSK与8ps K信号进行小波变换,再利用四阶累积量进行识别。
To solve this problem, a new classification algorithm was proposed in this paper, which made wavelet transform on MFSK and 8psk at first, and then used four-order cumulants recognition.
当马科·波洛斯先生和一个非正式的小团队开始深入调查的时候,发现数以亿计的资金都流入了麦道夫的手里,而这些钱却没有在市场中交易过的痕迹。
As Mr Markopolos and a small, informal team began to dig, it became clear that billions of dollars were being channelled to Mr Madoff, yet there was no trace of his transactions in the market.
届时包括纳达尔、罗迪克、莎拉波娃和小威廉·姆斯在内的众多网坛巨星将逐一亮相这项亚洲顶级网球赛事。
As one of the top-tier Asian events, the China Open will host numerous top-ranked players including Rafael Nadal, Andy Roddick, Maria Sharapova and Serena Williams.
他能别出心裁,他沤小绿肥来培植一些稀有珍贵的美洲的和中国的灌木,在这方面他超过了苏兰日·波丹。
He was ingenious; he had forestalled Soulange Bodin in the formation of little clumps of earth of heath mould, for the cultivation of rare and precious shrubs from America and China.
在第一次格莱美约会的九年后,1993年,杰克逊和波姬小丝终于又在颁奖后的宴会上重聚,只可怜这一对不仅聚少散多,就连最基本的隐私都无法保证。
Nine years after their first Grammy date, Jackson and good friend Shields reunite for a Grammys afterparty in 1993. "We grew up together, " Shields says that year.
用阿拉伯和苏菲派(Sufi)传统音乐专家朱力安.贾拉尔.艾迪恩.韦斯(Julien Jalal Eddine Weiss)的话来说,其效果就像是“用非洲的邦哥小对鼓(亦称曼波鼓)来演奏莫扎特的奏鸣曲”那样。
The result, according to Julien Jalal Eddine Weiss, an expert on classical Arab and Sufi music, was like “using African bongos in a Mozart sonata”.
这表明了小波变换对于非整次谐波的检测和分析是可行的,从而为谐波的精确检测提供了有效的手段。
It proves that it is feasible to apply the wavelet transformation to the detection of non-integer harmonics, thus, an effective means is provided for accurate detection of harmonics.
依据小波的非线性逼近能力和神经网络的自学习特性,提出了一种基于小波神经网络模型的自校正控制算法。
Based on the learning characteristic of neural network and the function approximation ability of the wavelet, a new self tuning control algorithm is presented.
特别是对阈值去噪方法,提出了一种基于正交小波变换和自适应学习算法的噪声抑制方法。
Especially to threshold de-noising, a method based on orthogonal wavelet analysis and self-adaptive learning algorithm was proposed here.
小波变换作为频率和时间的二元函数,使之可以很方便地在频率和时间域中同时进行地震波能量的吸收衰减补偿。
Wavelet transform involves the two-variate function of frequency and time, which makes it convenient to simultaneously compensate for attenuation of seismic energy in frequency and time domains.
复值小波变换能准确分辨出信号中所包含的幅值信息和相位信息,因而,适用于电力系统的故障信号的检测。
Because complex wavelet transforms can exactly identify amplitude and phase information in signal to be dealt with, they are suitable for detection of fault signals in power system.
分析了小波网络的性能,利用小波网络的非线性函数逼近能力,对非线性静态系统和非线性动态系统进行辨识。
The properties of the wavelet networks are analyzed. According to the approximation ability of wavelet networks, the nonlinear static system and the nonlinear dynamic system can be identified.
提出了一种新的有效的图像阈值分割算法。本算法将小波理论,模糊集理论和信息论三者有机的结合起来。
A new effective image segmentation algorithm Based on Wavelet Operator is presented, which is tied tightly in Wavelet analysis with Fuzzy, information theory.
在学习过程中通过同时调整小波基函数的平移因子和隶属度函数的形状,使得模糊小波网络的精度和泛化能力大大提高。
By adjusting the translation parameters of the wavelets and the shape of membership functions, the accuracy and generalization capability of FWN can be remarkably improved.
该方法首先利用小波变换和主成分分析对故障信号进行预处理,然后用处理后的故障特征数据对小波神经网络进行训练和测试。
The method uses wavelet transform and principle component analysis to preprocess fault signal, afterward training and testing wavelet neural network with the preprocessed fault characteristic data.
邓波儿先于她的孩子琳达·苏珊、小查理和劳瑞、孙女特蕾莎和两个重孙女莉莉和艾玛离世。
Temple Black is survived by children Linda Susan, Charlie Jr. and Lori, along with granddaughter Teresa and two great-granddaughters Lily and Emma.
把小波变换和ICA算法相结合,扩展ICA纹理基元的空间尺度描述能力,使其能准确分割有较大纹理结构的纹理图像。
In order to extend the spatial describing ability of ICA basis images, wavelet transform was combined with ICA, which make it be able to segment texture images with large textons.
文章提出了基于离散平稳小波变换和最佳阈值分割算法的织物疵点边缘检测方法。
This paper proposed a method for fabric defects edge detection based on discrete stationary wavelet transform (DSWT) and optimal threshold segmentation algorithm (OTSA).
提出了一种结合人类视觉系统的数字图像盲水印技术,它利用小波变化和人类视觉系统的共通点,进行水印的嵌入。
An algorithm of digitalimage blind watermarking technique combined with human visual system(HVS) is introduced, this algorithm uses common aspect between HVS and wavelet to embed watermarking.
结合过完备小波变换和凸集投影集(POCS)算法,提出了一种对信道差错鲁棒的多描述编码算法。
An error robust multiple description coding algorithm was proposed, which combines the overcomplete wavelet transform and projection onto convex sets (POCS).
基于小波变换和模态声发射理论,通过模态声发射试验的方法确定了管道中导波传播的频散特性。
Based on the wavelet transformation and the theory of modal acoustic emission, the dispersion of guided wave propagated in thin plate was investigated by acoustic emission experiment.
基于小波变换和模态声发射理论,通过模态声发射试验的方法确定了管道中导波传播的频散特性。
Based on the wavelet transformation and the theory of modal acoustic emission, the dispersion of guided wave propagated in thin plate was investigated by acoustic emission experiment.
应用推荐