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huangniebia5566n
基于matalab的逆变电路的仿真,希望对大家有所参考,大家交流(Based on matalab inverter circuit simulation, we want to reference, to share)
- 2011-12-26 15:23:12下载
- 积分:1
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chapter29
基于MATLAB的支持向量基拟合的程序源代码,(MATLAB -----LS-SVM)
- 2012-03-06 13:06:13下载
- 积分:1
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MIMO_signal_processing
对于初学mimo信道的朋友,是一个很好的介绍性资料(MIMO channel for the beginner friends, is a good introductory information)
- 2008-03-21 13:22:35下载
- 积分:1
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5646561
MATLAB仿真在电子测量中的应用(程序).这是这本书的相关程序,可以拿来学习下。(MATLAB simulation in the application of electronic measurement (program). This is the book of the relevant procedures, can be used to learn under.)
- 2020-07-03 16:00:01下载
- 积分:1
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DCTlicheng
研究表明,构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时,离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵,所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵,即除了对角线元素以外,其它很多元素都近似为0,并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大,亮度突变只占少数,即图像能量以低频成分为主的特
性。通过变换后的量化,舍弃对视觉效果影响较小的次要信息,可达到进一步的压缩效果。
虽然从去相关性能的意义上讲,DCT是一种次于K一L变换的准最佳变换,但是从算法实现的角度来看,DCT则远远优于K一L变换。首先,当图像的分块大小确定后,DCT的变换矩阵也就随之确定了,不随输入信号的统计特性变化而变化 其次,二维DCT能够分解成两次一维DCT,有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分:1
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mod_news_scroller
joomla block for news scroller
- 2009-11-27 23:54:11下载
- 积分:1
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matrix-operation-of-junior-students
MATLAB 的一些运算,关于矩阵以及一些例子。初学者专用,全面专用快速(Some operations on the matrix, as well as some examples. Beginners dedicated, full-specific rapid)
- 2009-05-22 08:45:23下载
- 积分:1
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Hiding-data-in-an-image
matlab程序源码,可以在图像中隐藏信息(Hiding data in an image)
- 2012-04-03 14:16:43下载
- 积分:1
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tupian
基于matlab的潮流计算,可实现人机界面交互。显示潮流的结果(Matlab calculation based on the trend, enabling human-machine interface interaction. Shows the trend of the results)
- 2011-05-13 23:06:00下载
- 积分:1
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EMAlgorithmforClustering
用于聚类的matlab的EM算法程序,速度还可以。共享给大家(for clustering of the EM algorithm Matlab procedures can also speed. For everyone to share)
- 2007-03-08 10:46:36下载
- 积分:1