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db4
1、 降噪步骤:
(1) 一维信号的小波分解。选择一个小波并确定分解的层次,然后进行分解运算。
(2) 小波分解高频系数的阈值量化。对各个分解尺度下得高频系数选择阈值进行软阈值量化处理。
(3) 一维小波重构。根据小波分解的最底层低频系数和各高频系数进行一维小波重构。
matlab里面有关于去噪的函数,你可以找一下~~
这说的只是基本原理,希望有所帮助(1, noise reduction steps: (1) one-dimensional signal wavelet decomposition. Select a wavelet decomposition level and determining, and then divide the operation. (2) high coefficient wavelet thresholding. For each decomposition scales have high coefficient selection threshold soft threshold quantization. (3) one-dimensional wavelet reconstruction. According to the lowest level of the low frequency wavelet coefficients and high frequency coefficients of each one-dimensional wavelet reconstruction. There are about denoising matlab function, you can find some ~ ~ This says just the basic principle, we hope to help)
- 2013-07-01 14:36:08下载
- 积分:1
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prueba1
how to use a webcam in matlab?
- 2009-03-24 23:58:20下载
- 积分:1
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2011
通过不同方法进行粗糙集属性约简matlab完整程序(Through different methods of rough set attribute reduction complete program matlab)
- 2011-06-05 10:21:19下载
- 积分:1
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counter-function
COUNTERDELETE(NAME) removes the counter specified by name permanently
- 2013-03-12 21:47:09下载
- 积分:1
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gprmax3g
三维地质雷达正演模拟,可以对二进制数据读取,利于学习(3D GPR simulation)
- 2013-11-28 16:35:02下载
- 积分:1
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convolution_codes_BPSK_OFDM
基于OFDM系统的卷积码的误码性能分析,BPSK调制,加循环前缀,导频,进行了信道估计。(OFDM system;convolutional code BPSK modulation pilot Channel Estimation )
- 2014-01-01 21:47:55下载
- 积分:1
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matlab
自己编的,基于自适应噪声对消的语音增强新算法(Own, based on adaptive noise cancellation of the new algorithm for speech enhancement)
- 2009-03-17 15:41:14下载
- 积分:1
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MatlabPlot
作为一个功能强大的工具软件,Matlab具有很强的图形处理功能,提供了大量的二维、三维图形函数。由于系统采用面向对象的技术和丰富的矩阵运算,所以在图形处理方面即常方便又高效。(As a powerful software tool, Matlab has a strong graphics capabilities, providing a large number of two-dimensional, three-dimensional graphics functions. Since the system uses object-oriented technology and rich matrix computation, graphics processing, so that is often convenient and efficient.)
- 2009-06-06 11:33:53下载
- 积分:1
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jacket_matlab
在matlab下编程使用jacket工具包进行GPU加速图像平滑算法,对900×900的图像平滑可达8倍多的加速比。需要jacket工具包及cuda toolkit。(In matlab programming toolkit used jacket GPU-accelerated image smoothing algorithm, the 900,900 image smooth acceleration up to 8 times more than that. Need jacket toolkit and cuda toolkit.)
- 2013-07-10 18:44:10下载
- 积分:1
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mat
一个有关matlab高级绘图功能的ppt课件,对掌握matlab高级绘图有很大帮助(A high-level graphics functions on matlab ppt courseware, advanced graphics on the master of great help matlab)
- 2010-10-27 11:06:19下载
- 积分:1