Simulation-for-Communications

窄頻的beamformer，還在研究當中。(Narrowband beamformer, is still being studied.)

matlab code for SegmentTool An Interactive GUI for Segmenting Images

说明：  日本科学家奥村通过对城市进行大量无线电波传播损耗的测量，得出了一系列经验曲线用于无线蜂窝网络的规划设计。在这些经验曲线的基础上，推出了简化的Hata模型。(Olympic Village by Japanese scientists a great deal of radio waves in urban propagation loss measurement, the experience curve obtained for a series of planning and design of wireless cellular networks. In the curves on the basis of these experiences, the introduction of a simplified Hata model.)

能够实现LT码的BP算法译码，在译码开销为30 左右时译码成功率接近于1(BP decoding algorithm, LT codes can be realized in the decoding overhead decode success rate is close to about 30 1)

说明：  用于波束成形的matlab代码，主要思想是用DFT码本实现(A large number of antennas are arranged at the base station of the system, and then the signals from different directions are weighted by beamforming preprocessing. After that, the power of each signal can be concentrated in a certain beam space for transmission,)

随机序列生产一维信号 用DB3小波进行二尺度分解 示范了dwt函数的用法 计算重构信号和原始信号的误差(Random sequence to produce one-dimensional signals DB3 wavelet decomposition of two-scale demonstrates the usage of computing functions dwt reconstructed error signal and the original signal)

说明：  基于置信传播算法的信道均衡器性能研究仿真(belief propagation)

the mole for window 32bit

运用MATLAB实现大型复杂平面有限元问题的位移、应力、应变等功能的实现 (These codes are intent to be used for calculating the displacement, stress, strain in complex, large plane problems in Matlab rather than in FEM softwares.)

说明：  ofdm同步技术的房展（对于学习ofdm同步技术有所把帮助）(ofdm synchronization technology房展(ofdm synchronization technology for learning has to help))