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说明：  此为C++环境下的LDPC编译码的完整的源代码。常用于通信系统的编译码仿真过程。有助于各种项目的完成。(This is the C++ environment LDPC coding and decoding of the complete source code. Commonly used in the encoding and decoding communication system simulation. Contribute to the completion of various projects.)

Connection system (QAM, PA, AWGN). Demodulation with BER computing.

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

MATLAB实现高斯赛德尔迭代法MATLAB实现高斯赛德尔迭代法

his article presents a survey of the developments in digital relays for protection of transmission lines.

Analysis of single frequency positioning accuracy of BDS_GPS receiver

7.1版本VBA插件，WPS2019等软件使用宏所需的外部依赖。VBA7.1安装方法：1.第一步安装运行时库：目录下（第一步：运行时库）安装对应文件vcredist_x862.第二步安装Vba组件项：目录下（第二步：Vba组件）Vba71.msi、Vba71_1033.msi、Vba71_2052.msi三个安装包注明：大大们安装时请按步骤安装，以免出错。

自写曲率计算函数 ,搭建OFDM通信系统的框架，分数阶傅里叶变换计算方面,Relief计算分类权重，包括广义互相关函数GCC时延估计，IMC-PID是利用内模控制原理来对PID参数进行计算。

無監督分類方法，可以對一堆數值自動的歸類(Unsupervised classification methods, can be a pile of automatic classification of numerical)

this code is knows Mean Shift algorithm