非规则LDPC码在AWGN信道下的性能仿真

FBMC_UFMC_OFDM_5G-master

这是基于MIMO-OFDM的对CFO进行估计的源程序，对分析此同步算法有着非常重要的作用。(This is based on the source of the MIMO-OFDM of the CFO estimation, on the analysis of this synchronization algorithm has a very important role.)

matlab实现16QAM调制解调的程序(matlab realize 16QAM modulation and demodulation procedures)

一个GPRS开发的例子，稍做修改，就可用在自己的项目中(The development of a GPRS example, some small modifications, you can use in their own projects)

说明：  可实现绘制星型16QAM星座图，用于调制识别分类(Able to draw star 16QAM constellation diagram)

ofdm+mimo+rayleigh仿真M文件，需要研习的请下载。(ofdm+mimo+rayleigh整个通信模型仿真，包含预编码，SVD（奇异值分解），SER计算，自适应（SISO的），OFDM调制解调)

CA 码的产生，以及自相关，互相关函数，画出自相关互相关图（MATLAB语句简单易懂，适合新手）(CA code generation, as well as autocorrelation, cross-correlation function, drawn from the correlation cross correlation diagram (MATLAB statement, easy to understand, suitable for novices))

为了对空间辐射源进行精确定位" 建立了基于任意阵列对多目标源进行二维DOA估计的数学模型。将 MUSIC算法推广到三维空间阵列可以对辐射源进行二维高精度测向,但由于其需要估计接收数据的协方差矩阵和进行特征分解, 因而其计算量较大。利用多级维纳滤波器的前向递推获得信号子空间和噪声子空间，不需要估计协方差矩阵和对其进行特征分解，从而降低了MUSIC算法的计算量。将文中的方法应用于任意阵列的二维DOA估计中进行计算机仿真和实际侧向系统性能验证,实验结果均表明该方法达到了MUSIC算法的性能,但与常规MUSIC算法相比降低了计算量.( In order to space radiation source for precise positioning" based on arbitrary array to multiple target source 2D DOA estimation model. The MUSIC algorithm is extended to three-dimensional space to two-dimensional array of radiation source for high precision direction finding, but due to the need to estimate the covariance matrix and eigenvalue decomposition, and the large amount of calculation. Use of multistage Wiener filter forward recursion received signal and noise subspace, does not need to estimate the covariance matrix and the eigenvalue decomposition, which reduces the computation of MUSIC algorithm. This method is applied to an arbitrary array DOA estimation for computer simulation and actual lateral system performance verification, the experimental results show that this method achieves the performance of MUSIC algorithm, but with the conventional MUSIC algorithm reduces the calculation amount.)

是硕士论文里面的关于NAKAGAMI信道的代码,MATLAB写的,大家可参考(There is a master)

简单的聊天室，分为服务器和客户端，开发环境为vc6.0，自己答辩用的代码。(Simple chat rooms are divided into servers and clients.)