bcdadd

城市交通流的运行存在着高度的复杂性、时变性和随机性,实时准确的交通流预测是智能交通系统,特别是先进的交通管理系统与先进的出行者信息系统研究的关键. 基于交通流预测的特点,给出了基于遗传算法的小波神经 网络的交通预测模型GA-WNN ,用具有自然进化规律的遗传算法来对小波神经网络的连接权值和伸缩平移尺度进行前期优化训练,部分代替了小波框架神经网络中按单一梯度方向进行参数优化的梯度下降法,克服了单一梯度下降法易陷入局部极小和引起振荡效应等缺陷. 仿真实验验证了GA-WNN 预测模型对短时交通流的预测的有效性.(For the high complexity ,time-variation and probability of urban traffic flow , its real-time and exact prediction is critical to the research of intelligent traffic systems , especially for the advanced traffic manage-ment system and advanced traveler information system. Based on the character of the traffic flow prediction , a GA-WNN model is given based on the wavelet neural network with genetic algorithm. The genetic algorithm of natural evolving law for the gradient descendent algorithm in Wavelet Neural Network is partly substituted to pre-optimize the connection weight and the extension scale of the wavelet neural network and later optimize the parameters along a single gradient vector. This method overcomes some drawbacks when there exists a single gradient descendent algorithm , such as local minimum and oscillation. A short-time traffic flow prediction sim- ulation using the GA2WNN prediction model demonstrates the validity of the model .)

扩展空间信道模型的matlab仿真 (MATLAB implementation of the extended SCM channel model)

关于分数阶傅里叶变换的源程序及一些应用，对初学者有很大帮助。(Some applications on the source and Fractional Fourier transform of great help for beginners.)

ldpc的解码程序,matlab实现，已实现，译码速度快(ldpc decoding process, matlab implementation, has achieved fast decoding)

Leverage Space Portfolio Model

基于MATLAB的Nakagami衰落信道仿真与分析(MATLAB-based Nakagami fading channel simulation and analysis)

this function calculate Granger causality relation between X and Y witch both are N by 1 vectors

人工免疫算法的一些论文.是大家搜集起来的,个人感觉很不错.(Artificial immune algorithm a number of papers. Is to gather everyone up, personal feeling is pretty good.)

基于NSCT和PCNN的图像融合算法，提高了融合效果。(base on nsct-pcnn page_fusion)

有关SIMULINK的教程，在学校时学习MATLAB是同学给的。(Tutorial of SIMULINK)