do-detection-and-frequency-spectrum

matlb摄像机校准用于测试的图像。标准的棋盘图像。(matlb camera calibration is used to test images. Standard chessboard image.)

doxygen是一个代码文档化工具。通过他可以自动的生成注释和文档。很方便(doxygen is a code documentation tool. Can be automatically generated through his notes and documents. Easily)

this is face recognition system in matlab

nurbs曲线在MATLAB中的实现，绘制(nurbs curve)

matlab初学者的使用教程，可处理各种模型求解问题(matlab tutorial for beginners to use, can handle a variety of models to solve problems)

the code is to track the lips. which need to be marked by red color. the code tracks the red color of the lips and thus the lips indirectly. such system can be very much useful for audio visual departments

说明：  通信原理系统仿真系列--ASK的调制。供刚接触到matlab编程的朋友使用。(communications system simulation series-- ASK modulation. For Matlab programming begin to use a friend.)

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。(First, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives. And then the characteristics of long training word, the correlation operation for the FFT window starting position of an OFDM symbol estimate. The estimated position of the FFT window, the first small frequency offset in the time domain estimation, the two long training word small frequency offset compensation, the FFT operation, the FFT result of the operation for integer frequency offset estimate. These parameter estimation is completed, the data can be demodulated on. The first portion of the data for a complete frequency offset compensation, and based on the estimated FFT window position of the FFT operation to obtain frequency domain data, demodulated. Then corresponding to the position of the pilot subcarriers are extracted on pilot inform)

alamouti编码，mimo中空时编码基础锻炼(alamouti coding, mimo hollow exercise when the code base)

说明：  利用RBF神经网络实现混沌预测，并结合matlab进行仿真，较好实现其功能(Realize the use of RBF neural network prediction of chaos, combined with matlab simulation, better realize its function)