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Long Term Evolution LTE block interleaver and deinterleaver

ofdm三个信道的matlab仿真代码，功能强大，能显示各个部分功能，有误码率(three-channel ofdm matlab simulation code, powerful, and can display various parts function, bit error rate)

卷积码与Turbo码的性能仿真对比，在AWGN信道和Rayleigh信道下。(Performace Comparison of Convolutional codes and Turbo codes under AWGN channels)

matlab教程和有关通信仿真的示例以及详细解释，学习通信仿真的可以看看。(matlab tutorials and examples of communication simulation and detailed explanation, learning communication simulation can see.)

偏微分方程的MATLAB解法,主要介绍非线性方程组求解方法,给出不同方法的数值解法。(MATLAB Solution of partial differential equations, describes the nonlinear equations solving methods, given the different methods of numerical solution solution.)

求解一维激波管问题等产生的偏微分方程组的几种数值差分格式算法。(Several Numerical Difference Schema Algorithms for Solving Partial Differential Equations of One - dimensional Shock Wave Tube Problems.)

应用简正波理论求解下列声场：如下图所示波导模型，上层为均匀水层，其厚度为100m，声速为1500m/s；下层为硬质均匀海底，海面和海底均平整。点声源位于30m深处，辐射声波频率为25Hz，编程计算10m和90m深度上的传播损失，分析其差别。(The normal wave theory is applied to solve the following sound fields: the waveguide model shown in the following figure shows that the upper layer is a uniform water layer with a thickness of 100m and a sound velocity of 1500m/s; the lower layer is a hard uniform seabed with smooth surface and seabed. The point source is located at the depth of 30m and the frequency of radiated sound wave is 25Hz. The propagation loss at the depth of 10m and 90m is calculated by programming, and the difference is analyzed.)

GPS TOOLBOX包含以下内容： 1、GPS相关常量和转换因子； 2、角度变换； 3、坐标系转换：  点变换；  矩阵变换；  向量变换； 4、专用测绘程序； 5、专用统计函数； 6、GPS时间工具； 7、专用GPS数据处理函数； 8、航迹和相关工具； 9、卫星位置计算； 10、高度和方位角判定，以及卫星可见性； 11、DOP（dilution of precision）计算，卫星选取和相关函数； 12、专用信号处理和Kalman滤波函数； 13、伪距和误差判定及相关函数； 14、用户位置判定及相关函数； 15、RAIM/FDE可用性和完好性评估相关函数。 (GPS TOOLBOX contain the following elements: 1, GPS-related constants and conversion factor 2, the perspective transform 3, coordinate system conversion:  point transform  matrix transformation  vector transform 4, private surveying and mapping procedures 5, specialized statistical function 6, GPS time instrument 7, a dedicated GPS data processing function 8, track and related tools 9, satellite position calculation 10, height and azimuth determination, as well as satellite visibility 11, DOP (dilution of precision) calculation , satellite selected and related functions 12, special-purpose signal processing and Kalman filtering function 13, pseudo-range and error determination and related functions 14, to determine user location and related functions 15, RAIM/FDE availability and good assessment of correlation function.)

矩阵化后，存储为系数矩阵的SPH程序计算液体旋转(Matrix Form SPH Saved in sparse matrix form for computing rotating liquid drop)

单快拍下的压缩感知（CS）应用于波达方向（DOA）估计的源程序，采用OMP算法(Single fast photographed compressed sensing (CS) is applied DOA (DOA) estimate of the source, using OMP algorithm)