applicationofmatlab

北京交通大学许荣涛老师TD-SCDMA课程Case Study仿真程序，关于midamble code和信道仿真。(The midamble code and channel simulation of the course of TD-SCDMA in bjtu,teacher Rongtao Xu.)

说明：  语音信号基本的处理，包括spectrogram和specgram两个函数的比较(The basic speech signal processing, including spectrogram and specgram comparison of the two functions)

说明：  做生成数(使用0.1做因子),之后13年的数据按统计方法标准化后输入,训练,仿真,对比结果。这个过程相当于插值计算(Generated to do a few (make use of 0.1 factor), after 13 years of data input after the standardization of statistical methods, training, simulation, comparing the results. This process is equivalent to interpolation calculation)

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 .)

matlab cod efor 2013 ieee paper a two level fh cdma

performance of wireless communication using path loss, received power and bit error rate calculation for GMSK modulation techniques

AR模型,用经典法的自相关法求谱估计，简单实用(AR model, using the classic method of auto-correlation spectral estimation method, simple and practical)

Hybrid GA & PSO Algorithm Run the file MainHGAPSO

matlab 下隐马尔科夫的经典实现，本人也是初学者，所以非常适合初学者学习(Matlab HMM classic application, very straightforward, simple to understand, it s worth downloading)

Newton Raphson Jacobian algorithm in 3 Phase