integral-dan-turunan

this program is designed for solving the two dimensional photonic structure

利用Matlab软件编写的轨道不平顺数据分析程序能够对轨检车测得的不平顺数据进行处理,得到功率谱密度分布函数.轨道不平顺分析程序包括轨道不平顺数据预处理、轨道不平顺谱分布函数计算以及根据实测的车体振动加速度,对轨道不平顺与车体振动加速度进行相干分析、提出对行车运行有不利影响的不平顺波长范围等.研究结果表明:车辆的动力特性与轨道不平顺有密切关系.高低不平顺对车体垂向振动影响显著,轨向不平顺对车体水平振动影响显著,水平不平顺对列车垂向、横向振动均有显著影响.(Matlab software written track irregularity data analysis program able to track inspection car irregularity measured data are processed to obtain the power spectral density function. Track Irregularities track irregularity analysis procedures including data preprocessing, track irregularity spectrum distribution function calculations, and based on the measured vibration acceleration of the vehicle, with the body of track irregularity acceleration coherent analysis, have an adverse impact on traffic running irregularity wavelength range, etc. the results show that: the dynamic characteristics of the vehicle and the track irregularity closely related. rough along the vertical vibration of the vehicle significantly, rail irregularity vibration to levels significantly affect the body, the level of irregularity to train the vertical and horizontal vibration significantly affected.)

一个基本利用simulink实现的扩频通信系统，包含扩频、调制、解扩、解调，可以比较全面的了解扩频系统的组成。(Simulink realization of a basic use of spread-spectrum communication systems, including spread spectrum, modulation, despreading, demodulation, can be a more comprehensive understanding of the composition of spread-spectrum systems.)

掌纹识别的matlab程序，包括最大内切圆求法，KL变换，小波变换，欧式距离识别方法(Palmprint recognition matlab program, including the largest inscribed circle Method, KL transform, wavelet transform, Euclidean distance to identify methods)

标准差分进化算法的MATLAB实现，有一个简单的函数，可以直接运行(MATLAB standard differential evolution algorithm to achieve, there is a simple function, can be run directly)

说明：  小波神经网络,可以用于对日径流进行预测，有助于了解小波分析与神经网络结合。(Wavelet neural networks can be used to predict daily runoff, help to understand wavelet analysis and neural networks.)

MIMO OFDM matlab仿真,有循环检测，周期性检测，利用matlab GUI实现的串口编程例子。( MIMO OFDM matlab simulation, There are cycle detection, periodic testing, Use serial programming examples matlab GUI implementation.)

说明：  基于灰色系统的预测，内涵数列预测和较难实现的包络预测(Prediction based on gray system, meaning the number of columns predictable and difficult to achieve the envelope prediction)

matlab动态模拟程序，小球的弹性碰撞模拟，直观的展现动态性(matlab dynamic simulation program, a small ball elastic collision simulation, intuitive dynamic display)

说明：  电流滞环跟踪(CHBPWM)控制技术在simulink上的仿真(Simulation of current hysteresis tracking (chbpwm) control technology on Simulink)