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Helsinki
travel guide to helsinki
- 2010-11-01 17:11:09下载
- 积分：1
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SUMT
sumt法，具有二次收敛性，若目标函数为二次正定函数，经有限步可达到极小点(sumt method, with quadratic convergence, if the objective function is quadratic positive definite function can be achieved by the finite step minima)
- 2010-12-26 22:13:09下载
- 积分：1
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RS_simulink
RS编码的matlab仿真（m文件仿真）,对加入突发噪声信道的RS（15，11）编码进行的仿真.(RS coding matlab simulation (m simulation files), joining the burst noise channel RS (15,11) code for simulation.)
- 2011-07-25 15:23:18下载
- 积分：1
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untitled1
自己构建的复杂时间结构的频谱分析图,频率为325MHz,占空比可看.作为参考(the fft of complex beam time structure)
- 2011-12-19 17:08:59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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MatlabSpectralMethods
说明： MATLAB国外经典，英文学习好的可以下载学习啊。(MATLAB foreign classics, and English learning good study can be downloaded ah.)
- 2008-11-25 16:40:54下载
- 积分：1
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Xie
在Matlab中画一个给定参数的T分布的图像。(plot a figure of a data for T distribution.)
- 2009-10-06 08:54:44下载
- 积分：1
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TV1
tv图像修复算法，对于去噪具有良好效果，能够很好的处理各种噪音(tv image restoration algorithm, with good results for denoising, able to handle all kinds of noise)
- 2010-05-15 15:18:27下载
- 积分：1
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hu3
.The content is too simple
2.Is not a sourcecode or document
3.lost some files
4.Description is
- 2011-05-17 19:59:21下载
- 积分：1
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Financial_Time_series_analysis
精通matlab金融计算
Financial_Time_series_analysis in Matlab(Financial_Time_series_analysis in Matlab)
- 2010-06-16 11:41:34下载
- 积分：1
