登录
首页 » matlab » constellation_qam

constellation_qam

于 2009-02-25 发布 文件大小:1KB
0 97
下载积分: 1 下载次数: 24

代码说明:

  This m file shows constellation for MQAM.

文件列表:

constellation_qam.m

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • total
    this m file make unique comparison between MVDR, SMI and DMR methods for adaptive array processing. the focus is in estimating the PDF function of the normalized SNR
    2014-09-07 14:21:04下载
    积分:1
  • 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
  • MatlabMPI_v0.95.tar
    Matlab MPI for Windows and Linux version 0.95.
    2011-01-20 06:40:30下载
    积分:1
  • pso
    PSO算法简单、易实现且参数较少,现已被应用于函数优化、神经网络训练、模糊系统控制以及其它遗传算法的应用领域(PSO algorithm is simple, easy to implement and less parameters, have been applied to function optimization, neural network training, fuzzy system control and other applications of genetic algorithms)
    2011-04-19 15:20:00下载
    积分:1
  • matlabh
    some exercices with matlab
    2013-12-23 18:33:13下载
    积分:1
  • linesearch
    利用黄金分割点法计算步长,用来求二次凸函数的最小值的线搜索方法(Using the gold partition point method, the step size is used for the minimum of two convex functions.)
    2015-05-25 16:16:59下载
    积分:1
  • 2008042021243274
    非常好的资料,很难找到哦,不要错过了啊,错过就没有机会了(VERY GOOD DOCUMENT IF YOU DON T BELIEVE ME, YOU CAN LOOK INSIGHT)
    2009-11-09 19:06:09下载
    积分:1
  • first2345
    CONTROL OF DC MOTOR USING BUCK BOOST CONVERTER
    2013-11-22 05:09:58下载
    积分:1
  • Sample150
    蓝牙信号仿真,通过matlab中simulink模块,进行仿真提取参数(Bluetooth signal simulation, simulation matlab simulink module extraction parameters)
    2013-05-09 19:41:56下载
    积分:1
  • TextView-marquee-they-scroll
    textview跑马灯,自己滚动 TextView marquee they scroll
    2014-01-26 15:18:23下载
    积分:1
  • 696518资源总数
  • 104384会员总数
  • 26今日下载