hc_namednodemapchildnoderange

基于信道的历史信息来预测不同信道的未来可用时间可以帮助CR选择一个最佳信道进行信息传递。不同的预测准则应用到周期或是随机的开关模式中。一个CR可以学习以往不同信道的模式。我们提出一个简单的分类和学习方法去检测模式的类型和收集需要的信息用于智能信道的选择。MATLAB仿真结果显示提出的方案在随机信道的随机和周期模式中都有优越的表现。随着时间的变化，新到的切换次数减少到55 ，并且延迟时间也相应减少，而吞吐量却在提高。(Prediction of future availability times of different channels based on history information helps a cognitive radio (CR) to select the best channels for control and data transmission. Different prediction rules apply to periodic and stochastic ON-OFF patterns. A CR can learn the patterns in different channels over time. We propose a simple classification and learning method to detect the pattern type and to gather the needed information for intelligent channel selection. Matlab simulations show that the proposed method outperforms opportunistic random channel selection both with stochastic and periodic channel patterns. The amount of channel switches needed over time reduces up to 55 , which reduces also the delay and increases the throughput.)

有关粒子群算法的源程序，用matlab语言编得，可用于求解函数优化问题(Particle Swarm Optimization on the source, using matlab language was made, can be used to solve the function optimization problem)

When capturing an iris image under unconstrained conditions and without user cooperation, the image quality can be highly degraded by poor focus, off-angle view, motion blur, specular reflection (SR), and other artifacts. The noisy iris images increase the intra-individual variations, thus markedly degrading recognition accuracy. To overcome these problems, we propose a new iris recognition algorithm for noisy iris images.

直接序列扩频源程序,对于研究扩频的朋友十分有益，请大家下载！(the code of DSSS，It s very good for study DSSS)

SIMULINK MODELS OF POWER SYSTEMS

这是一个LZW解压的matlab子函数程序和主函数，要结合我第一个上传的LZW压缩来看，这样有助于理解，效果很少明显，压缩率80 以上，不懂的跟我联系，我交你！！！我弄懂了！(It is a realisation of lzw decompression.Its compression ratio is beyond 80 .Its compression source is the first file which I have uploaded.If you have some questions,you can contact with me.)

介绍matlab原理和功能，并包含了matlab最基本的函数学习(Describes the principle and function of matlab, and contains the most basic function of learning matlab)

4 16 64 QAM plots for simulated and theoretical results for OFDM system under a standard Rayleigh channel

说明：  利用Garch模型 预测 可以进行经济数据预测处理(Using Garch model to predict economic data can predict treatment)

在matlab环境中，关于用支持向量机算法进行训练的M文件(M file of matlab on support vector mechine classify)