m_seqU

说明：  伽罗瓦域中2^8变换乘法逆运算的matlab程序(Galois field multiplication of 2 ^ 8 inverse transform of the matlab program)

求解线性规划逆问题的光滑牛顿法的程序，时间很快，精确度也很高(Solving the inverse problem of linear programming procedure smooth Newton method, the time soon, is also very high accuracy)

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)

说明：  这是一个模拟多进程并发的MATLAb代码，能清楚的看到结果。在os可能会用到，对你可能有用。(This is a simulation of MATLAb code concurrent processes, can clearly see the results. In the OS might need, to you may be useful.)

说明：  有源电力滤波器(APF:Active power filter)是一种用于动态抑制谐波、补偿无功的新型电力电子装置，它能够对不同大小和频率的谐波进行快速跟踪补偿，之所以称为有源，是相对于无源LC滤波器，只能被动吸收固定频率与大小的谐波而言，APF可以通过采样负载电流并进行各次谐波和无功的分离，控制并主动输出电流的大小、频率和相位，并且快速响应，抵消负载中相应电流，实现了动态跟踪补偿，而且可以既补谐波又补无功和不平衡。(APF:Active power filter))

关于QPSK星座图的部分程序，本人搜索到的，感觉挺好的，大家可以看看，参考一下。(QPSK constellation diagram on the part of the process, I searched, feeling quite good, we can see that reference.)

PHD谐波分解，大家可以尝试下，希望对大家有所帮助(PHD harmonic decomposition, we can try, we hope to help)

最优化求函数迭代有牛顿法。0.618.等(Demand function optimization iteration Newton method. 0.618.)

protues库文件说明，用于方便查找元器件(protues library description, for easy to find components)

matlab 和 simulink 转换成代码的实现，其中第8章介绍了matlab simulink 到vxworks代码的实现(matlab and simulink to code for some special use)