beijingdaxue

说明：  基于matlab和simulink的模糊自适应控制仿真(fuzzy adaptiv control based on matlab & simulink)

It is a matlab code to make a masking in spatial domain for an image. it contains different type of masking procedure for image processing.

一种新的快速傅立叶变换的程序-Matlab实现(A program for a new fast Fourier transform)

说明：  使用iwr16xx雷达板进行人体摔倒检测(Fall detection, useTI iwr16xx board)

利用FD方法求解第一类边界条件下的矩形金属槽(FD method for solving the first boundary condition of the rectangular metal trough)

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)

无速度传感器的矢量控制matlab simulink仿真图，仿真结果说明具有良好的自适应能力(Speed ​ ​ sensorless vector control Matlab Simulink simulation diagram, the simulation results has good adaptive capacity)

该程序介绍的是40节电电力系统的前推回代法潮流计算过程(The program is presented in the first 40 power-saving electric power system to push back on behalf of the current calculation method)

采用matlab语言进行编程，描述粒子群算法实际运行的matlab例程，很有帮助(Using matlab programming language to describe the actual operation of the PSO algorithm matlab routines, helpful)

Matlab functions: mean variance mean square error