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DFT
Transformada discreta de Fourier
- 2013-11-18 23:31:07下载
- 积分：1
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EM算法(讲解+程序)
EM 算法是Dempster，Laind，Rubin于1977年提出的求参数极大似然估计的一种方法，它可以从非完整数据集中对参数进行 MLE估计，是一种非常简单实用的学习算法。这种方法可以广泛地应用于处理缺损数据、截尾数据以及带有噪声等所谓的不完全数据，可以具体来说，我们可以利用EM算法来填充样本中的缺失数据、发现隐藏变量的值、估计HMM中的参数、估计有限混合分布中的参数以及可以进行无监督聚类等等。(EM algorithm is a method for maximum likelihood estimation of parameters proposed by Dempster, Laind and Rubin in 1977. It can estimate parameters from incomplete data sets by MLE. It is a very simple and practical learning algorithm. This method can be widely used in dealing with the so-called incomplete data such as defective data, censored data and noisy data. Specifically, we can use EM algorithm to fill missing data in samples, find hidden variable values, estimate parameters in HMM, estimate parameters in finite mixed distribution, and so on. Unsupervised clustering and so on.)
- 2020-07-04 06:00:01下载
- 积分：1
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atrous_alg_SWT
在MATLAB中用非抽样小波变换也称多孔算法实现信号或图像的压缩。(In MATLAB using non-decimated wavelet transform algorithm, also known as porous signal or image compression.)
- 2010-06-02 13:38:00下载
- 积分：1
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Load_V2.0
此程序根据王专利撰写的《翼面结构有限元模型节点气动载荷计算》编写
需要的前期准备文件：case01.txt---已知不同工况下各个载荷点力的文件
Force_Site.txt---已知各个载荷点的坐标
Node_Site.txt----有限元节点坐标
输出文件 Nodal_Force_01.txt----存放每个有限元节点计算后分得的力，第一列为节点编号，第二列为节点力大小(This process patent under the king wrote " wing structural finite element model node aerodynamic load calculation" Writing required preparatory documents: case01.txt-- known under different conditions of each load point force file Force_Site. txt--- known each load point coordinates Node_Site.txt---- finite element nodal coordinates output file Nodal_Force_01.txt---- storage node finite element calculation for each share of power, first as the node number, the second column is the size of nodal forces)
- 2013-10-14 22:37:15下载
- 积分：1
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fft
混沌时间序列算法中进行FFT变换程序，求解平均周期及功率谱。(Chaotic time series algorithm the FFT transform procedure for solving the average cycle power spectrum.)
- 2012-09-17 11:05:27下载
- 积分：1
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programming_tips
我从国外网站上下载的matlab编程资料,感觉挺好的,上传一下与大家共分享(from overseas sites I download the Matlab programming information, I feel very good, and upload what we were sharing)
- 2007-05-13 10:48:07下载
- 积分：1
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Graphics
3d and 2d graphics examples in Matlab
- 2012-09-27 00:52:02下载
- 积分：1
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2008_2
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。
((1) in certain wireless channel, the Doppler frequency shift will be caused by wireless channel output signal aliasing. Please describe the resulting aliasing of a variety of reasons (2) wireless channel Doppler spectrum there is a classical spectrum (classic spectrum), please explain such a spectral shape of the mechanism (3) Please use Simulink tools for writing code ( S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And please answer: prove that they used computer-generated classical spectrum is correct possible ways.)
- 2020-12-30 11:39:00下载
- 积分：1
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ingleproak_matlab_v5
proakis书籍中的matlab仿真代码(proakis books of matlab simulation code)
- 2008-04-18 10:17:56下载
- 积分：1
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motionEstNTSS
新三步搜索算法对三步算法进行了适当的改进，在一定程度上弥补了TSS算法在估计细小运动时的不足，并加入了半途中止的策略，进一步提高了搜索精度
(The new three-step search algorithm for three-step algorithm to improve the appropriate, to a certain extent make up for the TSS algorithm in estimating the inadequacy of a small movement, and joined the mid-suspension strategy to further improve the search accuracy)
- 2008-04-14 10:08:46下载
- 积分：1
