parallel_parking

说明：  用matlab强大的数学算法引擎去实现语音识别，对过去的方法进行综述，并有所创新(Using matlab powerful mathematical algorithms to realize the speech recognition engine, the past methods of synthesis and innovation)

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 .)

改进的hht算法，速度更快，分解出两个IMF。(Hht improved algorithm, faster decomposition of two IMF.)

这是计算thinwire的散射程序，对研究电磁散射的同行很有用(This is the calculation of the scattering thinwire procedures, the study of electromagnetic scattering useful peer)

此代码是在matlab下开发，适应于GPS高程拟合，只需加载相关数据，方便好用(This code is developed in matlab to adapt in the fitting of GPS Elevation, just load the relevant data, easy-to-use)

说明：  使用无迹卡尔曼滤波器完成系统惯性导航，效果很好(use ukf to achieve imu)

generate the parity check matrix

This zip-file contains 7 codes which implement the 1 dimension programs from Sullivan´ s book for beginners, with some corrections.

详细介绍信号检测理论的书，内容详尽，适合研究生和高年级本科生使用(Details of signal detection theory book, detailed, suitable for graduate and advanced undergraduate use)

说明：  Parzen窗估计法的C语言代码和Matlab应用的动态链接库。(Parzen window estimation method of C language code and Matlab applications, dynamic link library.)