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andnot_adline
and gate using adaline
- 2010-10-15 10:31:23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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project-kenh-co-day-hoac-khong-day
this is a matlab program modulate to a wireless or wire line chanel
- 2013-03-11 23:25:13下载
- 积分:1
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communicationsignalprocessing
说明: 通信信号处理中的七阵元四信号元DOA估计,方法有CAPON、MUSIC、ESPRIT法(Communications signal processing array element seven million four signal DOA estimation, methods have CAPON, MUSIC, ESPRIT method)
- 2008-09-04 10:34:29下载
- 积分:1
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matlabexample
说明: 实用程序百例 介绍MATLAB实用程序,便于用户学习,使用(Utility hundred cases described MATLAB utility, user study, the use of)
- 2011-03-12 09:53:41下载
- 积分:1
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mic_sysfs
Intel MIC Platform Software Stack (MPSS).
- 2014-09-11 13:25:17下载
- 积分:1
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sort
Conceptually, a merge sort works as follows
Divide the unsorted list into n sublists, each containing 1 element (a list of 1 element is considered sorted).
Repeatedly merge sublists to produce new sorted sublists until there is only 1 sublist remaining. This will be the sorted list.
- 2013-12-01 01:52:17下载
- 积分:1
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EXIT
This is a matlab code for drawing EXIT chart. This is a chart that is used for performance evaluation in different coding and
decoding techniques. This is an mfile.
- 2013-11-20 05:53:56下载
- 积分:1
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logistic
说明: 求解logistic映射的李雅普诺夫指数,来判断该序列是否为混沌(Solving logistic mapping Lyapunov exponent, to determine whether the sequence of Chaos)
- 2008-11-19 20:12:44下载
- 积分:1
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dtdt
用递推的极大似然法对系统辨识(递推的极大似然法辨识程序)希望通过站长审核(recursive use of the maximum likelihood method of system identification (recursive maximum likelihood method identification procedures) through head of audit)
- 2006-06-05 09:58:30下载
- 积分:1