PrelimReport

通信原理实验的matlab仿真中的快衰落和慢衰落(Matlab simulation experiment of communication principle in fast fading and slow fading)

有关于mimo系统的多用户检测的仿真，分别对1发4收、2发4收、3发4收、4发4收的情况进行的仿真，并给出了误码率曲线图(Mimo systems on the detection of multi-user simulation, respectively, close to 1 made 4, 2 fat, 4 close, 3 fat, 4 close, 4 fat, 4 close to the situation of the simulation, and gives a bit error rate curves)

by this code you can distinguish circle from diamond in a 4*4 table... this code is easy and understandable enjoy it...

说明：  用来解决压缩感知里求解优化问题的算法matlab代码(solves the minimization problem. min_u ||u||_1+ lambda ||a*u- f||_2^2. algorithms are based on greedy coordinate descent and the bregman iterative method. matlab 7.5 (r2007b) image processing, mathematics, optimization, resconstruction . )

说明：  图像阈值分割技术在图像分割中具有重要的意义。遗传算法既可以对全局信 息高效利用，也减少了存储空间和计算量。利用遗传算法的优点，提出了一 种用改进遗传算法的图像分割的方法，可以将父代中适应度大的个体代替当前代 中的个体，保证了可以选出最优的个体。遗传算法是具有鲁棒性和自适应性的搜 索方法.通过实验对比，表明该方法具有快速、稳定分割的特点。(Image threshold segmentation technology is of great significance in image segmentation. Genetic Algorithms can be used for global information Efficient utilization of information also reduces storage space and computation. Based on the advantages of genetic algorithm, a new genetic algorithm is proposed. A method of image segmentation based on improved genetic algorithm can replace the current generation with individuals with large adaptability in the parent generation. The individual in the system ensures that the best individual can be selected. Genetic Algorithms are Robust and Adaptive Search The experimental comparison shows that the method has the characteristics of fast and stable segmentation.)

用比幅法测向测向，并进行误差分析，通过4个天线进行测向(Direction finding and direction finding by amplitude comparison method and error analysis are carried out.)

求洛伦兹信号的功率谱matlab程序，可以用来求其他信号的功率谱。(Power Spectrum Estimate )

2008年脑电竞赛的MAT数据。想要的可以直接下载 可以把数据放在MATLAB中直接处理(MAT data of the 2008 EEG competition. If you want, you can download it directly, and you can put data in MATLAB directly.)

该程序用CZT算法实现信号频率分析，并画出信号的波形图、FFT变换后的频谱图、CZT变换后的波形图(CZT transformer )

可以实现图片的肤色分割，matlab程序，可以直接运行，只需改变路径(Skin color segmentation can be achieved picture, matlab program can be run directly, simply by changing the path)