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pharray
基于相位阵列，可以生产任意数量的独立波束。(Phased Array demo.You can generate any number of independent beams, each one with its own direction and focalization.)
- 2014-08-15 22:33:25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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ransac
ransac funtion to use in image process
- 2013-12-10 19:07:39下载
- 积分：1
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APCS
matlab project for class higher matlab
- 2020-12-07 20:59:20下载
- 积分：1
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matlab
matlab lagran.m 拉格朗日插值 divDiff 牛顿差商表(matlab lagran.m divDiff.m)
- 2009-10-03 09:36:13下载
- 积分：1
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Shifters
傅里叶变换的另一种表述，傅里叶变换的另一种表述，傅里叶变换的另一种表述(Another statement Fourier transform, Fourier transform another expression, another expression of Fourier transform)
- 2010-11-21 11:46:53下载
- 积分：1
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wind_electricity_generation
Windpower technology dates back many centuries. There are historical claims that wind
machines which harness the power of the wind date back beyond the time of the ancient
Egyptians. Hero of Alexandria used a simple windmill to power an organ whilst the
Babylonian emperor, Hammurabi, used windmills for an ambitious irrigation project as early
as the 17th century BC.
- 2013-12-27 18:01:00下载
- 积分：1
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matlab_R
matlab与R的命令对比，双剑合璧，充分发挥各自的优势。(matlab command comparison with R, two-pronged, give full play to their strengths.)
- 2010-06-03 03:27:41下载
- 积分：1
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ofdm_4qam
子载波数128位数/ 符号 2符号数/ 载波 1000训练符号数 0循环前缀长度8 调制方式 4-QAM多径信道数3 IFFT Size128 信道最大时延 2(ofdm program 4QAM modulation. Subcarriers median number of 128 /2 Symbol Symbol/carrier cyclic prefix length of the number of training symbols of 1000 0 8 modulation mode 4-QAM multi-path channel number 3 the IFFT Size 128 channel maximum delay)
- 2013-05-13 18:33:43下载
- 积分：1
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matlab-tutorial
matlab学习教程，详细介绍matlab相关知识，提供给需要学习了解matlab的朋友，熟练掌握matlab作为仿真工具的使用！(matlab tutorials, detailed knowledge of matlab, matlab available to those who need to learn about a friend, as a simulation tool to master the use of matlab!)
- 2013-05-28 21:32:50下载
- 积分：1
