1000-2618(2013)05-0469-06

一个kalmen filter 的介绍，就是matlab中如何使用kalmen filter(A paper about the introduction of the kalmen filter)

the most important 101 Unix commands

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)

数字图像处理中的边缘检测程序合集，包括VC++和MATLAB实现(Digital Image Processing Edge Detection Collection procedures, including the VC and MATLAB)

图像处理中数字识别的相关算法，自己私藏的统计识别模板。神经网络/聚类分析。matlab实现。(AI-NN-PR pattern recognition matlab)

load flow solution for ieee 14 bus system is attached

XLR and XLP interrupt request and interrupt mask registers.

希尔伯特黄变化的3次matlab编程程序，适合于研究HHT的人(Hilbert-Huang change 3 times Matlab programming, suitable for the study of HHT)

电子稳像灰度投影算法的电子稳像算法，针对最近matlab2013a进行了修改，使得程序可以适应更多视频格式，可直接运行，效果良好(Electronic image stabilization gray projection algorithm electronic image stabilization algorithm was modified for the recent matlab2013a, so that the program can accommodate more video formats, can be directly run to good effect)

用来处理气象上NCEP资料grib2的matlab处理程序(Matlab Processing Program for Processing NCEP Data grib2 in Meteorology)