upnp

一种不同信噪比噪声的添加方法，包括复噪声和实噪声，()

3维拓扑优化计算算法，可用于初级拓扑优化学习和在此基础上进行拓展(3 d topology optimization algorithm can be used for primary topology optimization learning and expansion on this basis)

介绍一种改进传统遗传算法的新方法，通过调节交叉概率和变异概率(Introduction of a new genetic algorithm to improve the traditional method, by adjusting the crossover probability and mutation probability)

Greedy Snake contour plus user interaction Active Contour Without Edges (Chan Vese) I implement these papers using matlab. I hope you enjoy :)

采用Gauss消去法求解线性方程组AX=B，M为求解方式。当M=0，则采用顺序消元；当M=1时，采用模最大的列主元；当M=2时，采用模最小的列主元(Gauss cal)

一个很好用的粒子群优化算法matlab源代码，用来解决单目标函数优化(A good use of particle swarm optimization algorithm matlab source code, used to solve single-objective function optimization)

该程序是MATLAB环境下的小波消噪程序，自我感觉很有用，在此分享(The program is under the MATLAB environment, wavelet denoising process, feel useful, to share in this)

偏最小二乘源代码，非常好用，很详细，有具体的求解过程(the process of calculate)

2发1收STBC-OFDM系统仿真，以误码率曲线显示结果(simulation of the 2*1 STBC-OFDM systerm，the result is presented with BER-SNR curve )

针对OFDM系统，分成链路级仿真和系统级仿真两个部分。为了降低系统级仿真的复杂度，采用链路级仿真的部分结果。(It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation. System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate. Link-level simulator support SISO, 1 by x MRC, 2 by 1 STBC/SFBC, 2 by 2 Alamouti, x by 1 Antenna selection, x by y antenna selection. System-level simulator, currently support only SISO and 1 by 2 MRC. To start with, go into the folder sys_link_simu, and excute the following commond from matlab: sys_link_simu_func(a,b) where a is the link ada)