Getting-Started-with-MATLAB

gui in matlab and opencv

接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。 首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。 (The receiving end uses the algorithm and the program flow and the frame structure of the OFDM symbol transmitted by the sending end. Specific frame structure, and timing estimation, frequency offset estimation, residual error tracking algorithm can refer to the documentation. Here to illustrate the process of the program. First, according to the characteristics of the short training word correlation operation, the signal reaches the detection, when the correlation value is greater than the threshold of a certain number of times, that there is a signal to reach. Then, according to the characteristics of the long training word, the correlation operation is carried out, and the initial position of the OFDM symbol FFT is estimated. The estimated position of the FFT window, first in the time domain for small frequency offset estimation, two long training word for small frequency offset compensation, the FFT operation. According to the result of FFT for integer frequency bias estimation. Af)

说明：  本书以MATLAB作为仿真环境，系统地介绍了滑模变结构控制的几种先进的控制方法。本书凝练了作者多年来从事控制系统教学和科研工作的经验，同时融入了国内外同行近年来取得的最新成果。(This book uses MATLAB as the simulation environment to systematically introduce several advanced control methods of sliding mode variable structure control. This book condenses the author's years of experience in teaching and scientific research on control systems, and at the same time incorporates the latest achievements made by domestic and foreign counterparts in recent years.)

基于haar-like训练的人脸识别，在matlab中实现的，希望对大家有用。(Training based on haar-like face recognition, implemented in matlab, we want to be useful.)

本教程提供了使用MATLAB的实践性指导，它基于MATLAB6.0版，内容由浅入深，特别是本书对每一条命令的使用格式都作了详细而又简单明了的全英文说明(This tutorial provides a practical guide to using MATLAB, which is based MATLAB6.0 version of the content digest, especially for the book using the format of each command are detailed yet simple and clear instructions in English)

MATLAB仿真程序，基于直流输电系统（HVDC）的MMC（modular multilevel converter）结构变流系统。程序主要包括主变流部分及其控制部分，MMC为7电平结构。程序测试OK。(a power convertion system realized in MATLAB SIMULINK. the system is carried out with a kind of newly investigated converter named Modular Multilevel Converter of seven levels.)

使用PLL design assistant程序进行PLL设计(PLL design using the PLL design assistant program)

目标跟踪问题的应用背景是雷达数据处理，即雷达在搜索到目标并记录目标的位置数据, 对测量到的目标位置数据（称为点迹）进行处理，自动形成航迹，并对目标在下一时刻的位置进行预测。 ben文简要讨论了用Kalman滤波方法对单个目标航迹进行预测，并借助于Matlab仿真工具，对实验的效果进行评估。 trajectory.m产生理论的航迹，并绘出 Kalman_filter.m 利用Kalman滤波算法，对目标的航迹进行估计 filter_result.m kalman滤波估计的结果，以及估计误差的均值和标准差曲线(target tracking application context radar data processing, radar in search of the goals and objectives of the record location data, for the measurement of target location data (known as trace points), automatic track, as well as the next target location for the moment forecast. Ben paper with a brief discussion of Kalman filtering method to a single target track forecast and using Matlab tool for experimental evaluation of effectiveness. Trajectory.m have theoretical track, and draws Kalman_filter.m using Kalman filtering algorithm, the target track estimated filter_result.m Kalman filtering results, and the estimated error of the mean and standard deviation of curve)

小波分析，基于DWT的故障信号特征提取，可以画出条形图，多层分解(Wavelet analysis, DWT-based feature extraction of fault signal can draw bar charts, multi-decomposition)

三相桥式可控整流电路的MATLAB仿真,非常详细适合初学者(MATLAB simulation of three-phase bridge controlled rectifier circuit, very detailed for beginners)