h1

MIMO-OFDM系统降低PAPR的天线旋转取反算法(Antenna rotation inversion algorithm for reducing PAPR in MIMO-OFDM system)

说明：  repeat-accumulate codes (RA codes)

DVB-T（2K模式）同步，仿真最大似然相关（MLE）算法，在符号开始位置出现谱峰(DVB-T (2K mode) synchronization, simulation Maximum Likelihood correlation (MLE) algorithm. Symbol began in the peaks of position)

批量文件下载器,很不错的易语言源码,易爱好者可以下载使用()

介绍常用的AT指令，包括gpsr初始化，发短信等(Commonly used in the AT commands, including the gpsr initialization, send text messages, etc.)

CDMA以及MC-CDMA中的多用户联合检测 MMSE算法以及ZF(迫零)算法(CDMA and MC-CDMA in multi-user MMSE joint detection algorithm, as well as ZF (zero forcing) algorithm)

对语音信号进行加噪，求它的功率谱，降噪处理(Adding noise to speech signal and reducing noise)

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.)

基于DEVC++的手机模拟系统，文件共计1500行，(Based on DEVC++ Analog mobile phone systems, document a total of 1500 lines,)

说明：  ldpc最小和译码算法，能够有效完成译码(LDPC minimum sum decoding algorithm can effectively complete decoding)