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Gockenbach-M.S
Practical introduction to Matlab
- 2011-12-03 04:38:20下载
- 积分：1
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SF
说明： This code for shift factor problems
- 2014-01-14 05:02:44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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pxc3895670
fbmc ofdm resource allocation
- 2014-10-28 13:47:20下载
- 积分：1
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Super-resolution-reconstruction
超分辨率图像重建基础教程，Super-resolution image reconstruction(Super-resolution image reconstruction)
- 2013-11-23 17:14:49下载
- 积分：1
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CHANNEL
高斯信道、莱斯信道和瑞利信道的误码率分析(Gaussian channel, Rice channel and Rayleigh channel the analysis of BER )
- 2021-03-14 16:39:23下载
- 积分：1
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graph-search-algorithm
本算法是基于图论的广度优先搜索算法，对于配电网的孤岛搜索，以及各个孤岛的电气连通性判别具有很好的效果。(Used to solve the problem about graph search algorithm.
)
- 2021-03-30 21:19:09下载
- 积分：1
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MMZE
matlab based MMZ codes for wireless system
- 2010-11-12 12:22:28下载
- 积分：1
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PSO-Learning-factor
当惯性权值不变的情况下取不同的值，c取值为1.5和2(When the inertia right under the condition of invariable value take different values)
- 2012-05-10 00:15:43下载
- 积分：1
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integer-programming
指派问题整数规划,matlab程序，拟分配n 人去干n 项工作，每人干且仅干一项工作，若分配第i 人去干第j项工作，需花费c（i，j） 单位时间，问应如何分配工作才能使工人花费的总时间最少？(Assigned integer programming problem)
- 2013-08-25 09:24:52下载
- 积分：1
