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this is simulation of LTE Phy-layer but it is not complete yet not all the codes i done by my self

Les méthodes géométriques sont les méthodes les plus répandues en simulation indoor. On a cité les principales familles de ces méthodes. Il s’avère qu’il n’existe pas de meilleures méthodes que d autres. En effet, le choix d’une méthode par rapport à une autre dépend des objectifs principaux qui sont fixés au début du travail. Il est donc fondamental de faire un compromis entre le nombre de rayons à calculer et la complexité de calcul.

利用小波算法进行图像和视频处理，将原始小波块放在新小波块的左上角，在小波块右下角补零。(Using wavelet algorithm for image and video processing, the original wavelet wavelet block block on the new upper left corner of the block in the lower right corner of the wavelet zeros.)

说明：  This is a matlab code to simulate PAPR Vs CCDF of Selective Mapping (SLM) based Peak-to-Average power reduction of OFDM signal.

matlab examples.Viewing the magnitude response of ideal and practical lowpass filters

使用matlab分析传统光学系统中加入三次相位掩模板之后其点扩散函数的焦点偏移(Analysis using matlab conventional optical system by adding three phase mask after the point spread function of its shift in focus)

本文提出了一种节点密度和剩余能量传感器网络加权分群算法，该分群算法优化了群首 选择，均衡了网络节点的能量消耗，延长了网络的生命周期(This paper proposes a residual energy of sensor nodes in the network density and weighted clustering algorithm, the clustering algorithm to optimize the group' s first choice, balancing the energy consumption of network nodes to extend the network life cycle)

说明：  直流微网继电保护策略实现S-function的M文件，主保护为母线直流差动保护，基于小波分解的高频故障电流保护，后备保护为过电流保护，针对系统为2进2出的微网，只需将电流值输入，其中第一个输入变量为开关，为保护算法控制开始/关闭。(The relay protection strategy of DC microgrid realizes the M file of S-function. The main protection is busbar DC differential protection. The high frequency fault current protection based on wavelet decomposition and the backup protection is overcurrent protection. For the microgrid with 2 in and 2 out of the system, only the current value is input. The first input variable is switch, which starts/closes for the control of the protection algorithm.)

汽车系统动力学的操纵动力学部分，经检查正确(Automotive parts handling dynamics of system dynamics, the check for the correct)

直驱式永磁风机整流控制，MATLAB仿真(Direct-drive permanent magnet wind turbine rectifier control, MATLAB simulation)