wind_dfig22

认知无线电是一种用于提高无线电通信频谱利用率的新的智能技术. 首先简述认知无线电的背景和概念,针 对认知无线电的频谱感知功能,详细地分析基于能量检测的频谱检测方法,在此基础上研究了噪声方差的不确定 性对检测性能的影响. 针对无线信号检测具有本地局域性和能量检测存在信噪比极限的特点,提出一种分布式有 限合作检测机制,推导出基于“OR”规则的有限合作机制的检测概率,并进行Monte Carlo仿真.(Cognitive radio is a radio communications spectrum used to improve the efficiency of the new smart technology. First, the background and outlined the concept of cognitive radio, spectrum sensing for cognitive radio capabilities, a detailed analysis of the spectrum based on energy detection test In this study the noise variance based on the uncertainty of the detection performance. for wireless signal detection with local detection of localized and there is signal to noise ratio limit of the energy characteristics of a distributed cooperative detection mechanism, derived out based on " OR" rules of the detection probability of the limited cooperation mechanism and conduct Monte Carlo simulation.)

this code uses the particle swarm optimization PSo techinque in tunning a PID controller in order to obtain the adequate values of the controller gains

采用SVM设计男女生分类器。采用的特征包含身高、体重、是否喜欢数学、是否喜欢文学、是否喜欢运动共五个特征。要求：采用平台提供的软件包进行分类器的设计以及测试，尝试不同的核函数设计分类器，采用交叉验证的方式实现对于性能指标的评判（包含SE,SP,ACC和AUC，AUC的计算基于平台的软件包）。(Using SVM classifier is designed for boys and girls. Characterized by the use of include height, weight, whether you like math, whether like literature, whether you like sports a total of five feature. Requirements: The software package provided by the platform classifier design and testing, try different design kernel classifiers, using cross validation manner for performance uation (including SE, SP, ACC and AUC, AUC calculated based on platform software package).)

TRAINPSO is a network training function that updates weight and bias values according to particle swarm optimization.

这是周建兴编写的《matlab从入门到精通》第三章的所有源代码，都可以运行的出来，和课本上的一样，(This is Zhoujian Xing written 《matlab从入门到精通》第4章的所有源代码，都可以运行的出来，和课本上的一样，)

算术编码的matlab实现 ，便于无损压缩 (Arithmetic coding matlab implementation, ease of lossless compression)

双音频信号处理，模拟电话的各个按键的波形发生情况(Dual audio signal processing, waveform of each key of the occurrence of an analog telephone)

Hopfield network with matlab.

基于matlab估计随机变量的统计特性 随机信号处理的课程实验(Matlab estimated based on the statistical characteristics of random variables Random signal processing course experiment)

Voicebox Matlab m files