多分辨分析
- 网络multiresolution analysis;multi-resolution analysis;mra
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本文利用小波多分辨分析及快速Mallat算法提取反映股价基本变化趋势的低频信息,并分析了证券交易的时机选择。
In the paper , the low-frequency information which reflects the trend of stock price change is extracted using wavelet MRA and the Mallat method , and the time of stockjobbing is analyzed .
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结合FFT技术,利用小波包分析给出了一种电力信号幅值突变和频率突变故障的检测方法,改善了小波多分辨分析信号检测方法的不足。
Using FFT and wavelet package analysis theory , the abrupt fault signals detection for power systems on amplitude and frequency is also mentioned to advance the wavelet MRA signal detection approach .
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在多分辨分析框架下构造B样条小波函数。
B-Spline is constructed in Multiresolution Analysis Frame .
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样条多分辨分析B样条曲线的形状分析
Spline Multiresolution Analysis Study on Form of B-Spline
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基于多分辨分析的食道动态pH监测信号去噪算法
Multiresolution Analysis Based Denoising Algorithm for Dynamic Esophageal pH Monitoring Signal
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结合多分辨分析和小波Holder数的人造目标识别方法
Artificial target recognition with multi-resolution analysis and wavelet holder constant
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基于多分辨分析的滤波算法在SAR图像斑点噪声消除中的应用
Application of the Filtering Algorithm Based on Multiresolution Analysis in Removing the Speckle Noise on SAR Image
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针对这两个缺点,结合小波变换的多分辨分析特性,本文采用二次B样条小波函数对图像进行边缘检测。
Combining multiscale analysis of wavelet transform , a new method is proposed in this dissertation based on Quadratic B-spline wavelet transform to overcome these two drawbacks .
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基于小波多分辨分析的DOA估计
DOA Estimation Based on Wavelets Multi-Distinguishing Analysis
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Hilbert-Huang变换的自适应频率多分辨分析研究
Study of Adaptive Frequency Multiresolution Analysis of the Hilbert-Huang Trans form
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首次提出基于多分辨分析去除食道动态pH监测信号中常见噪声的算法。
A denoising algorithm for dynamic esophageal pH monitoring signal is first introduced in this paper . The algorithm was developed on the basis of multiresolution analysis .
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基于小波多分辨分析的高阶矩CAPM
The Research on High Moment CAPM Based on Multi-Resolution Analysis of Wavelet
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以多分辨分析定义中的完全渐近性条件为理论依据,采用正交尺度函数作为神经网络的激励函数构建正交尺度小波网络,给出正交尺度小波网络参数学习的BP算法;
Orthonormal scaling wavelet network is proposed on the basis of the definition of multiresolution analysis . The BP algorithms for parameters of network are given .
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介绍了将小波多分辨分析(MRA)用于核磁共振(NMR)自由感应衰减(FID)信号的水峰抑制。
Wavelet multi-resolution analysis has been used for suppressing water peak in free induced signals of NMR .
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本文根据多分辨分析理论,给出了计算具有任意横截面波导的TE模和TM模的一种方法。
Based on multiresolution analysis , a method for computation of TE and TM modes in arbitrary cross sections is described .
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Haar小波基的多分辨分析生成
The Haar wavelet base multi-resolution analysis produces
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实验结果证明,基于多分辨分析的滤波算法在消除SAR图像的斑点噪声方面优于改良K-均值自适应滤波法。
The experiment proves that the filtering algorithm based on multiresolution analysis has an advantage over the modified K value adaptive filter in removing the speckle noise on SAR image .
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用Riesz基函数表达的多分辨分析模型
Multiresolution Model Expressed by Riesz Base Functions
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实验中,在谱分析、模板设计和多分辨分析中运用WO算法,都取得好的效果。
Applying WO-LMS algorithm in spectrum analysis 、 module designing and multiresolution analysis respectively gives birth to favorable results .
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从小波分析的Lipschitz指数出发,分析了白噪声和损伤信号的小波系数模极大值多分辨分析的特点,阐述了小波降噪和信号奇异性识别原理。
According to Lipschitz index of wavelet analysis , the multiresolution analysis characteristics of white noise and damage signal is analyzed .
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基于DT-CWT的像素级多分辨分析图像融合算法研究
Research on Pixel-level Image Fusion Algorithm Based on Multiresolution Analysis DT-CWT
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指出了Fourier变换相对于小波变换缺点,研究了Haar(哈尔)小波基的多分辨分析生成。
Had pointed out the Fourier transformation is opposite in the wavelet transformation shortcoming , has studied Haar ( Hall ) the wavelet base multi-resolution analysis production .
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本文运用高维小波变换理论,通过三元张量积多分辨分析方法,严格推导出了三维分离小波功率谱的计算公式,并找到了它与传统的Fourier功率谱之间的联系。
A formula is derived for calculating three dimensional discrete wavelet power spectra by using the multiresolution analysis method . The relation between the wavelet power spectrum and its Fourier counterpart is also given .
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在仿真实验中基于MATLAB环境对实际测量得到的超声回波信号进行噪声信号处理及特征提取,仿真结果证明了小波多分辨分析应用于超声回波信号降噪处理的有效性。
In the MATLAB simulation environment , the noise removing and feature extraction of the measured signal are realized and experiment results show the effectiveness of the wavelet multiresolution analysis in the de-noising of ultrasonic echo waveform .
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针对小波变换多分辨分析(MRA)的特点,本文提出一种多尺度分级的自适应模糊权重中值滤波的去噪方法。
According to the feature of the MRA , this paper presents a noise filtering method of adaptive fuzzy threshold for wavelet classification base on multi resolution .
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与DCT等其它变换相比,DWT拥有许多优点,它具有多分辨分析的特点,更能匹配人类视觉系统(HVS),具有更好的计算复杂度等。
It has many advantages over other transforms such as the computational complexity , the matching with Human Visual System ( HVS ), and the hierachical analysis structure .
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本文从离散小波变换和多分辨分析的理论出发研究这种新的多载波调制技术,从理论角度分析了DWT-OFDM基带传输系统的性能特点以及相对于传统OFDM系统的优势。
This thesis has researched the characteristics and performance of DWT-OFDM base-band transmission system , have compared the performance with conventional OFDM system .
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从多分辨分析(MAR)出发,介绍了正交样条小波函数的构造方法,并讨论了小波函数的衰减性。
Starting with the multiresolution analysis ( MAR ), a method to constructing orthogonal spline wavelets is introduced and the exponential decay of them is discussed in this paper .
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Parseval框架多分辨分析
Parseval Frame Multiresolution Analysis
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目前,用于地震与测井匹配校正的方法主要有经典的闭合差校正法、基于杨氏谐振Q模型的直接匹配法以及基于多分辨分析技术的匹配方法。
At present , classical interval transit time difference correct method , directly matching method based on Yang 's resonant Q model and the method based on multi resolution analysis are main correcting method used for matching of seismic and logging data .