multiGA

一个用matlab做的电话声学回声消除程序(Using matlab to do a telephone acoustic echo cancellation procedures)

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.)

说明：  Randon data from program

用节点导纳矩阵计算三相短路电流。输入数据-形成节点阻抗矩阵-选择故障点-计算短路电流-计算个节点电压-计算指定支路的电流(this procedure is used node admittance matrix calculation of three-phase short-circuit current input data-- forming node impedance matrix-- election Optional fault-calculation of short-circuit current-voltage computing nodes designated calculated slip road-- Electricity)

4 BAR MECHANISM SOLUTION

Conversion between absolute and relative path names

neural network tools

在matlab开发软件中，利用相关函数求两个信号的时间延迟。(In matlab software development, the use of correlation function of the two signals time delay.)

2d logistic regression demo

用MATLAB做的音乐播放器，可以识别简谱直接播放其中音乐(music player)