xingzuo_simulation

说明：  MATLAB 测试&测量板块发表的帖子:请教Matlab关于ERA(特征系统实现算法)中的几个问题(MATLAB testing & measurement plate published posts: consult MATLAB about ERA(feature system implementation algorithm) in a few questions)

该文档为一个实现ofdm子载波调制和解调的代码，利用QPSK和16QAM两种方式实现，并附有运行结果。(This document is an implementation of ofdm subcarrier modulation and demodulation of the code, the use of QPSK and 16QAM two ways, along with operating results.)

说明：  求解随机微分方程dx=sinxdt+xdw的数值解(NUMERICAL SOLUTIONS FOR SOLVING STOCHASTIC DIFFERENTIAL EQUATIONS dx=sinxdt+xdw)

说明：  对一维数据进行卡尔曼滤波，参数需要自己调(Kalman filter for one-dimensional data, the parameters need to be adjusted by yourself)

说明：  不同的相邻分组数目v实现的pts抑制ofdm峰均比的算法,可以仿真出v越大,papr的性能越好(The algorithm of reducing ofdm peak-to-average ratio by pts with different number of adjacent packets v can be simulated that the larger v is, the better the performance of papr is.)

说明：  matlab读取1.txt文件内数据，并隔行提取数据以新文件2.txt保存(Extract data interlaced and save in a new file)

A 2x2 multiple-input multiple-output (MIMO) architecture using dual-polarized antennas (DPAs) is considered with orthogonal frequency division multiplexing (OFDM). The performance of DPAs is evaluated for adaptive polarization (AP) transmission techniques in time-varying multipath channels impaired by polarization mode dispersion (PMD) and polarization-dependent loss (PDL). AP transmission techniques considered include power gain maximization, polarization dispersion minimization for interference avoidance, polarization multiplexing with waterfilling, and a suboptimal multiplexing strategy that enables direct recovery of the polarization multiplexed streams, thereby simplifying the design of the receiver. Measured time-varying dual-polarized channel realizations from mobile-to-mobile experiments are used to estimate the capacity, diversity, and interference avoidance performance of the adaptive approaches.

BPSK信号的仿真，包括随机信号产生、数字基带信号、已调信号、加噪声，解调等(BPSK signal simulation, including the random signal generator, a digital baseband signal, the modulated signal, plus noise, the demodulation)

Anti-Islanding Protection of DG

时频分布wigner-ville的仿真,可以通过改变信号,来看函数的分布情况(The time-frequency distribution of the wigner ville - simulation, can change the signal, function distribution)