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sumulink
this is a simulink model of modern control obserability
- 2012-06-02 03:06:33下载
- 积分：1
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LFM
产生一组简单的线性调频chirp信号,帮助大家学习matlab 用于雷达脉冲压缩(creat a simple LFM signal)
- 2012-08-21 09:59:32下载
- 积分：1
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graint-oder2
模拟介质光栅衍射光场行为，不同角度入射，得到不同的衍射花样。(simulation grating diffrcation)
- 2012-08-22 00:59:07下载
- 积分：1
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singleparticlemove
本程序在六边形的元胞自动机上模拟单粒子运动,算法是基于FHP规则.用MATLAB编写.(hexagon in the process of cellular automata to simulate single particle movement, FHP is based on the rules. using MATLAB.)
- 2006-10-22 19:19:04下载
- 积分：1
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FSSSinmatlab
matlab中扩频通信系统的仿真以及误码率的计算包含DSSS以及FSSS(matlab in spread spectrum communications system simulation and bit error rate calculation includes DSSS and FSSS)
- 2013-06-28 08:59:21下载
- 积分：1
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adaboost
AdaBoost元算法属于boosting系统融合方法中最流行的一种，说白了就是一种串行训练并且最后加权累加的系统融合方法。
具体的流程是：每一个训练样例都赋予相同的权重，并且权重满足归一化，经过第一个分类器分类之后，
计算第一个分类器的权重alpha值，并且更新每一个训练样例的权重，然后再进行第二个分类器的训练，相同的方法.......
直到错误率为0或者达到指定的训练轮数，其中最后预测的标签计算是各系统*alpha的加权和，然后sign（预测值）。
可以看出，训练流程是串行的，并且训练样例的权重是一直在变化的，分错的样本的权重不断加大，正确的样本的权重不断减小。
AdaBoost元算法是boosting中流行的一种，还有其他的系统融合的方法，比如bagging方法以及随机森林。
对于非均衡样本的处理，一般可以通过欠抽样(undersampling)或者过抽样(oversampling)，欠抽样是削减样本的数目，
过抽样是重复的选取某些样本，最好的方法是两种进行结合的方法。
同时可以通过删除离决策边界比较远的样例。
(AdaBoost boosting systems dollar fusion algorithm is the most popular one, it plainly systems integration approach is a serial train and final weighted cumulative.
Specific process is: Each training example is given equal weight, and the weights satisfy normalization, after the first classifiers after
Calculating a first classifier weights alpha value for each sample and updates right weight training, and then the second classifier training, the same way .......
0, or until the specified error rate training rounds, wherein the label is the calculation of the final prediction system* alpha weighted and then sign (predicted value).
As can be seen, the training process is serial, and weight training examples is always changing, the right of the wrong sample weight continued to increase, the right to correct sample weight decreasing.
AdaBoost algorithm is an element, as well as other methods of boosting popular systems integration, such as bagging and random forest method.
For )
- 2014-07-09 19:24:29下载
- 积分：1
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gui.tar
ejemplo de desarrollo de guis en matlab
- 2010-05-15 19:36:56下载
- 积分：1
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Fiber_matlab
主要模拟的是信号光在增益光纤中放大的过程(Main simulation signal light is amplified in the gain fiber in the process)
- 2021-02-28 15:19:36下载
- 积分：1
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BD_IP2006
variational bayesian blind image restoration
- 2010-07-23 19:41:32下载
- 积分：1
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Ray-jakes
一个基于jakes模型的瑞利衰弱频道的matlab程序，很好用。(A jakes model based on Rayleigh fading channel C++ program, easy to use.)
- 2010-10-04 08:06:16下载
- 积分：1
