POL5THXYC

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) (LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.)

说明：  DEKTEC信号发生卡的控制软件,dos下面的控制台程序(example source code of DEKTEC player card)

实现维纳滤波用于语音增强。第一步采用频域谱函数计算最佳的维纳滤波器，再对输入带噪信号进行滤波；第二步是在此基础上的改进，用了自适应的思想，及时根据当前帧的状态更新修正滤波器的系统函数，得到更精确的无噪语音信号。第三步是采用自适应LMS方法，在时域迭代计算滤波器系数，迭代次数足够多时可得到较准确的有用信号。(Implement wiener filtering used in speech enhancement. First step optimum wiener filter is obtained by using the frequency spectrum function, again to input the signal with noise filtering The second step is the improvement on the basis of this, with the idea of adaptive, and in a timely manner according to the current frame updates correction system function of the filter, get a more accurate without noise speech signal. The third step is to use the adaptive LMS method, iterative calculation in time domain filter coefficient, the number of iterations enough to get the useful signal accurately.)

一阶预测器的设计,可以查看权重系数图和均方误差图。(Predictor of first-order design, weight coefficient can view maps and mean square error map.)

胡广书数字信号处理书的全部matlab仿真代码，从基本的信号采样到具体的信号处理实例(Hu Guang book book full digital signal processing matlab simulation code, the signal from the basic signal processing sample to a specific instance of)

多目标优化中经典的测试函数MATLAB代码(Classical test function matlab code in multi objective optimization)

简单遗传算法matlab文件?虻ヒ糯?惴╩atlab文件(Simple genetic algorithm matlab document? Tabanidaeヒ╩ atlab guessing ? waxy paper)

关于电力系统状态估计的MATLAB的源程序，敬请参考，不负侵权责任(On the MATLAB power system state estimation of the source, please refer to, live tort liability)

一维球坐标系下辐射传递方程切比雪夫配置点谱方法求解(One-dimensional spherical coordinates radiative transfer equation Chebyshev collocation spectral method for solving)

说明：  最小二乘支持向量机，用于进行函数的回归分析(Least squares-Support Vector Machine,Used for regression analysis of functions)