sousu

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 .)

说明：  Chebyshev 用切比雪夫多项式逼近已知函数 Legendre 用勒让德多项式逼近已知函数 Pade 用帕德形式的有理分式逼近已知函数 lmz 用列梅兹算法确定函数的最佳一致逼近多项式 ZJPF 求已知函数的最佳平方逼近多项式 FZZ 用傅立叶级数逼近已知的连续周期函数 DFF 离散周期数据点的傅立叶逼近 SmartBJ 用自适应分段线性法逼近已知函数 SmartBJ 用自适应样条逼近（第一类）已知函数 multifit 离散试验数据点的多项式曲线拟合 LZXEC 离散试验数据点的线性最小二乘拟合 ZJZXEC 离散试验数据点的正交多项式最小二乘拟合 (Interpolation function)

The use of Internet Protocol Suite of TCP/UDP in environments characterized by high delay and high Link Error rates result in significant degradation of the Protocol Performance. The DTN Bundle Protocol can be used in such scenarios. Performance evaluation of Delay-Tolerant Network Bundle Protocol in a live network is difficult due to the absence of networks characterized by extreme environs

经典谱估计和现代谱估计方法matlab程序，周期图法，Welch法，AR模型的yuler,Burg,协方差和修正的协方差法(Classical and modern spectral estimation spectral estimation method matlab program, yuler periodogram, Welch method, AR model, Burg, covariance and modified covariance method)

adfig function for wavelet processing in wavelab

DWT transformation is used to describe the image compression

基于AIR模型的线性滤波器法模拟风速时程(Linear Filter Method Based on AIR Model to Simulate Wind Speed Time)

说明：  连续梁影响线自动计算及车道（辆）荷载加载程序。(a programme for calculating the influence lines of continuous beams...)

学习matlab的好资料,是你学习的好助手，你可以用来学习matlab和数学建模(this is a learn matlab very good )

OCO: OPTIMIZED COMMUNICATION AND ORGANIZING FOR TARGET TRACKING IN WIRELESS SENSOR NETWORK