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MDWT
多维小波变换工具箱 V1.0
作者：陈甫
作者email: chen_fu@263.net
论坛: mathworld.yeah.net(V1.0 of multi-dimensional wavelet transform toolbox: Chen Fu of email: chen_fu@263.net Forum: mathworld.yeah.net)
- 2010-08-10 21:59:43下载
- 积分：1
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ADBoostingAlgrithm
说明： 用Matlab实现ADBoosting算法，很有代表性。(Using Matlab to achieve ADBoosting algorithm, very representative.)
- 2009-09-03 21:09:52下载
- 积分：1
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yichuansuanfa
说明： 遗传算法在现在各个领域都有很好的应用 时比较前沿的但研究很多的算法 感兴趣的大家可以看看(Neural networks in all areas now have very good applications, but more cutting-edge research of interest to many of the algorithms we can see)
- 2010-04-26 09:13:20下载
- 积分：1
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gas-furnace
mtlab cod fuzzy wavelet neural network
- 2012-12-30 07:27:27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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channel_impulse_response
大规模多输入多输出非平稳无线信道冲击响应(Large-scale multi-input multi-output non-stationary wireless channel impulse response)
- 2014-12-09 11:03:47下载
- 积分：1
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Mfile
A simple case which uses MATLAB for ploting phasor quantities. Apply the fault during simulation run and observe phasor quantities (you can change type of fault)
- 2012-10-21 16:23:20下载
- 积分：1
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符号定时和载波频率同步算法
一种新的符号定时和载波频率同步算法,该算法将OFDM符号分成几部分。它使用相关性和积累在几个OFDM同步算法对OFDM系统基于试点,使用前言快速、准确获取信号,在有限的时间建立同步,利用导频跟踪同步信息(A new symbol timing and carrier frequency synchronization algorithm is presented and the algorithm divides the OFDM symbol into several parts. It uses correlation and accumulation in several OFDM a synchronization algorithms for OFDM system based on pilot, using the preamble to fast and accurate acquire signal, establish synchronization in the limited time, and using pilot to track synchronization information)
- 2013-05-27 16:21:04下载
- 积分：1
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Rotate_annib
综合出耦合矩阵后，可以用次数进行消元化简，去掉不需要的耦合系数(When we finished synthesis of the coupling matrix , we can used this function to eliminate the Annihilation
of matrix elements)
- 2021-03-15 15:49:22下载
- 积分：1
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matlab_SampleTheroy
数字接收机调制解调方面的matlab程序(Digital receiver matlab aspects of modulation and demodulation process)
- 2009-06-18 18:46:03下载
- 积分：1
