huihei_v14

文章对几种常用的基于循环前缀(CP)的最大似然同步算法进行了分析，并对其频偏估计方差进行了比较；同 时针对基于CP 的同步算法在多径衰落信道下性能较差的情况，提出了一种改进的CP 同步算法并进行了仿真，结果表明相比 于原ML 算法，文中算法在多径信道下可有效提高频偏估计性能。(】This paper does some research on multiple maximum-likelihood (ML) algorithms based on cyclic prefix (CP) and compares variances of frequency-offset estimation After the analysis of the bad performance of CP based algorithms in multi-path fading channels, an improved CP algorithm is proposed and the simulation shows that this algorithm can improve its performance effectively in multi-path fading channels.)

说明：  很好的与c++ 接口的实际例子111111111(很好的与c++ 接口的实际例子111111111111)

Gabor filters image processing

小电流接接系统故障选线。是用于仿真小电流接地系统发生单相接地时，正确选出故障相(Small current then pick a fault line. Is used for the simulation of small current grounding system of single phase, the right to elect the fault phase)

介绍matlab入门与提高的好东西，简单明了(Introduction matlab entry and increase the good things simple)

绘制CIE1933标准的马蹄形轮廓,是LED和图像色度校准不可缺少的工具(The horseshoe-shaped contour drawing CIE1933 standard)

QPSK通信系统仿真，有所有的代码，课程设计或者实验可以参考(QPSK communication system simulation, there is all the code, curriculum design or experiment can refer)

说明：  第二种孤岛运行的控制是采用下垂控制（droop控制），Droop控制就是用来模拟频率一次调整。通过控制电力电子逆变器来实现。(The second kind of island operation control is droop control, Droop control is used to simulate a frequency adjustment. It is realized by controlling the power electronic inverters.)

对matlab中的常用函数进行补充，对信号处理的实现有帮助，只要将其加入默认路径就能轻松使用。(the commonly used matlab functions added that implementation of signal processing has to help, as long as its default path will be able to add easy to use.)

说明：  mimo下行基于块对角化信道逆转的多用户预编码程序。(mimo downlink multi-user precoding based on block diagonalization channel inversion)