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Wavelet
- 小波变换与傅立叶变换在信号消噪中的对比研究-Wavelet Transform and Fourier transform in signal denoising Comparative Study
liguyue
- 数字信号处理的课程设计。题目是语音信号滤波去噪——使用双线性变换法设计的切比雪夫II型滤波器-Digital signal processing design curriculum. Topics are filtering denoising speech signals- the use of bilinear transform design Chebyshev Type II Filter
wangzhe
- 语音信号滤波去噪——使用双线性变换法设计的椭圆滤波器。-Speech Signal Denoising Filtering- Bilinear transformation method using the elliptic filter design.
xiaoboxiaozao
- 小波信号消噪，使用小波阈值法对含噪信号进行去噪。-Wavelet signal denoising, the use of wavelet thresholding method for denoising signals with noise.
zy1
- 摘要 该文主要考虑利用图像噪声再生技术来提取图像细节 其思想是利用被滤除的噪声信号进行回收再利用 通过对噪声信号和初步去噪信号进行小波变换 比较它们的小波系数 当噪声信号的小波系数达到一定的阈值时 将噪声信号的小波系数保留叠加至初步去噪信号的小波系数 然后利用传统的软阈值去噪的方法来进行图像的去噪 从而达到既能够去除噪声 又能保留图像细节的目的 实验证明 该方法较传统的方法在去噪和细节保持上有改进-Abstract In this paper, consider using images to
denoising
- 信号处理技术在局部放电去噪中的应用。摘 要：抑制干扰是信号处理的关键技术，滤除窄带干扰则是其中的重要内容。文中介绍了运用经典FFT频域阈值算法抑制局部放电周期窄带干扰的方法，并在此基础上提出了一种优化算法。通过对仿真数据的处理效果比较，验证了该优化算法的有效性。-Signal Processing Technology in partial discharge denoising
dspembeddedapply-05
- DSP嵌入式系统开发典型案例 第五章 语音信号去噪和编码系统设计-DSP Embedded Systems Development Case Chapter V speech signal denoising and coding system design
Vstrument
- 虚拟仪器技术小波信号消噪仪的设计Virtual instrument technology wavelet signal denoising Instrument-Virtual instrument technology wavelet signal denoising Instrument
08-NTAV-SPA_165_Marciniak-Rochowniak-etal
- In this paper we propose a method for voice activity detection (VAD) in a speech signal recorded in the presence of noise. The so-called endpoint detection (EPD), i.e., detection of voice activity (speech) boundaries is very difficult if the
UV-signal-processing
- UV signal denoising based on some techniques which is explained in this paper
Signal-Denoising-with-Wavelets
- brief detail about Signal Denoising with Wavelets
sonar2
- 基于平移不变小波变换的多普勒速度声纳输出信号处理.针对水下航行器组合导航系统所使用的多普勒速度声纳输出信号的特点,采用了平移不变小波变换的多分辨率分析的方法,利用Daubechies小波函数,采用了半软阈值去噪的方法,能够在低信噪比的情况下准确地估计多普勒声纳的频移,从含有噪声的多普勒输出信号中提取出原始信号.通过仿真实验表明:采用4层小波分解,算法计算量减小,有效地消除多普勒噪声,从而提高水下组合导航系统的精度. -Doppler speed the sonar output signal p
quzao
- 对信号进行两层提升分解，构造小波分解结构，使用函数wnoise获取噪声方差，接着使用函数wbmpen获取小波去噪阈值，最后使用函数实现信号去噪。-Signal two layers enhance decomposition, the constructed wavelet decomposition structure, function wnoise for noise variance, and finally use the function signal denoising.
wavelet-denoising
- 论文：基于小波变换的信号消噪效果影响因素研究及其matlab实践-keywords：wavelet trsform；wavelet function thresshold signal denoising
KSVD_Matlab_ToolBox
- 数字图像处理，K-SVD字典学习方法，信号的稀疏与冗余表示理论，图像压缩，图像去噪-Digital image processing, K-SVD dictionary learning methods, sparse and redundant signal representation theory, image compression, image denoising
EMD-Based-Denoising-
- 其中一个为这经验模式分解的任务（EMD）是潜在有用的非参数信号去噪 为此小波阈值一直占主导地位的技术的区域多年。-One of the empirical mode decomposition of this task (EMD) is potentially useful non-parametric signal wavelet threshold de-noising for many years to this end has been the dominant technology i
A-Robust-Denoising-Algorithm
- In this paper, a robust DWPT based adaptive bock algorithm with modified threshold for denoising the sounds of musical instruments is proposed. The signal is first segmented into multiple blocks depending upon the minimum mean square criteria in each
ChaoticSignalBasedonWaveletTransform.rar
- 基于小波多分辨率分析的思想，提出一种降低混沌信号噪声的方法。首先对一个混沌时间序列进行小波分析，得到信 号在各个尺度上的不同特性;再对各个高频细节信号进行二次小波去噪;最后对二次小波去噪后的信号进行线性叠加，达到 提取真实信号的目的(Based on the idea of wavelet multiresolution analysis, a method to reduce the noise of chaotic signal is proposed. First, the wavel
image denoising
- 通过小波变换对加噪图像进行阈值去噪，并实现了信噪比的比较，更加直观的看出去噪后的图像效果。(The wavelet transform is used to denoise the denoised image, and the comparison of the signal to noise ratio is realized, and the image effect after the denoising is seen more intuitively.)
Denoising
- The wavelet denoising is a useful tool for various applications of image processing and acoustic signal processing for noise reduction.