Noisetracking

PURPOSE: [LLF, grad, hessian, h, scores, robustse] = garchlikelihood(parameters , data , p , q)

潮流计算是电力系统稳态分析的重要组成部分，pq分解法是牛拉法的改进。(Power system power flow calculation is an important part of the steady state analysis, P- Q decomposition method is a kind of improvement of cattle rafa.)

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)

matlab codes to solve single variable unconstrained optimization problem using five methods

基于占有概率栅格地图的2D激光SLAM仿真，进而进行实时地图创建(SLAM simulation based on RBPF)

本程序基于matlab编程，绘制了一箭穿心的图案(The program is based on matlab programming, drawing an arrow pattern mandrel)

vc与matcom混合编程实例，里面包含了matcom将matlab m文件转换成C++文件的例子，然后在vc中调用，画图，并借助matlab在vc中对音频文件进行幅度和相位分析(Vc mixed with matcom programming examples, containing the matcom transform matlab m file into the c++ file example, and then call in the vc, drawing, and with the help of matlab in the vc of amplitude and phase analysis was carried out on the audio file)

这是一段利用matlab实现PCA分析的代码，即word说明(This is a realization of PCA analysis using matlab code that word description)

基于matlab的关于遗传算法的一些重要的函数的m文件，供读者参考 (Based on some of the important matlab m file on genetic algorithm function for readers reference)

PLSAMA MATERIAL PROGRAME