PPI

This matlab m-file is a programing file of Pure ALOHA. This file considers

模糊网络的应用，可以试试看哦，在各种控制上都用得到(fuzzy application)

FFT 基2变换源程序，matlab测试与系统函数变换结果一致(Radix-2 FFT transform source code, matlab test results are consistent with the system function transformation)

好用的随机森林回归（RFR），也可用与分类。基于以编译的mex84，可实现bias-correction。回归预测精度较高(applicable random forrest regression，can also be used for classification。Regress with bias-correction 。can achieve high accuracy)

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.)

Hook-Jeeves法解无约束最优化问题(Hook-Jeeves Solving unconstrained optimization problem)

应用频域平滑方法绘制的循环周期谱图，同时给出了f轴和alpha轴的截面图。(Application of frequency domain smoothing method to draw the cycle of spectrum, and gives the f-axis and the alpha-axis sections.)

Kronny penny simulation Quantum physics

双馈风机在孤岛运行下的仿真模型，适合研究生的学习和科研工作(Doubly-fed fan in the islands of the simulation model of run, suitable for graduate study and research work)

procesamiento de filtrado espacial de imagenes