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psopt
PSO algorithm written in MATLAB
- 2010-07-02 15:41:11下载
- 积分:1
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K-means
K-均值聚类算法程序,数据挖掘中比较经典的一种聚类算法。。。(K-means clustering algorithm procedures)
- 2011-06-09 08:40:24下载
- 积分:1
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VCSOASteadyGainTMM
基于传输矩阵法(TMM)计算VCSOA(垂直腔半导体光放大器)的稳态增益的程序。由于是从将输入端功率Pin作为已知条件,程序用Matlab优化工具箱中的fsolve函数计算了满足边界条件时的输出功率。这对于相关研究开发都是较好的资料。(This is a set of source codes, which are used for calculating the steady state gain of VCSOA based on the transfer matrix method(TMM). Since the input power of the VCSOA is regarded as a already-known condition, this program, the function "fsolve" in the Matlab Optimization Toolbox is used for obtaining the output power of the VCSOA when the input power is at some value. This is a good material for further studying the related problems, especially when using the Matlab for device simulations. )
- 2013-08-13 16:15:25下载
- 积分:1
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FLOAD
直角坐标系下的牛拉法潮流计算-建立任何电网的原始节点和支路数据的文本文档,就可以调用Matlab文件进行潮流计算。(Cattle trend Rafah Cartesian coordinate system is calculated。Establish any text document to the original node and branch data grid, you can call Matlab files flow calculation.)
- 2014-12-29 08:50:07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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Applied-Econometrics-using-MATLAB
apply economics with matlab
- 2012-11-23 12:57:26下载
- 积分:1
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berforbpskmodulation
ber for bpsk modulation
- 2010-09-13 14:13:56下载
- 积分:1
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pca
用于图像的主成分变换,完成数据压缩的目的和数据信息的提取(transformation of features)
- 2009-12-13 16:36:50下载
- 积分:1
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MATLA
matlab从入门到精通 学习资料 很全面的 (matlab entry to the proficient very comprehensive learning materials)
- 2014-12-21 19:09:29下载
- 积分:1
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BeamFroming
自适应波束形成(智能天线)的MATLAB代码仿真程序(Adaptive beamforming (smart antennas) code of the MATLAB simulation program)
- 2009-04-23 09:14:13下载
- 积分:1