PSO

synchrhonization effects

根据有无固定基础设施，无线局域网又可分为BSS (Basic Service Set)和IBSS (Independent Basic Service Set)。我们要研究的ad hoc网络属于后者。假设在一个ad hoc网络中，移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道，测量接收到的信号功率X，其中X= I + N, I为接收到的干扰，N是噪声。移动节点只有在X＜INThre时，才可以发射。式中，INThre为背景噪声门限。 在仿真中，我们规定每个移动节点的发射功率是常数，PTx = 1W；接收节点接收机的灵敏度Smin = -80 dBm；信号质量 min = 2 dB；系统的背景噪声门限INThre = 1.2e-10。 (According to the availability of fixed infrastructure, wireless local area network can be divided into BSS (Basic Service Set) and IBSS (Independent Basic Service Set). We have to study the ad hoc network belong to the latter. Assuming in an ad hoc network, mobile node s transmission power is always constant PTX. To send data to the mobile node always monitor channel, measuring the received signal power X, which X = I+ N, I was received interference, N is the noise. Mobile node only when X <INThre when it is fired. Where, INThre threshold for background noise. In the simulation, we require that each mobile node s transmission power is constant, PTx = 1W receiver node receiver sensitivity Smin =-80 dBm signal quality )

准正交空时分组码仿真，采用了分组译码而不是常规的单独译码。(quasiorthodox SFBC simulation)

alamouti方案的误比特率仿真 包含无分集，发射分集(2Tx, 1Rx)，发射分集(2Tx, 2Rx)，MRC接收分集 (1Tx, 2Rx)的误比特率曲线 在matlab r2010b 中已运行通过。(alamouti program the mistakenly bit rate simulation contains no diversity transmitter sub-sets (2Tx, 1Rx) emission sub-set (2Tx, 2Rx) MRC receiving sub-set (1Tx, 2Rx) the incorrect bit rate curve matlab r2010b has run through.)

EEMD在EMD的基础上进行添加高斯白噪声，VMD相对于EEMD时频分解效果更好，有效的抑制了模态混叠和端点效应(EEMD adds Gaussian white noise on the basis of EMD, and VMD has better effect on time-frequency decomposition than EEMD, effectively suppressing modal aliasing and endpoint effects)

稀疏矩阵的matlab算法，以及稀疏矩阵存储技术的介绍。(Matlab sparse matrix algorithms, and sparse matrix storage technology introduction.)

这是规则化滤波复原的matlab代码，需要的可以作为参考(This is the matlab code regularization filter recovery, need can be used as a reference)

说明：  变分模态分解算法是2014年新提出的，广泛应用于信号处理领域。 VMD分解的子程序，给定分解的时域信号，数据保真约束平衡参数、噪声波峰时间步长、VMD分解个数、迭代精度可以得到 分解的子分量、子分量的波谱、各模式的中心频率。(The variational mode decomposition (VMD) algorithm was proposed in 2014, which is widely used in the field of signal processing. Given the time domain signal decomposed by VMD, the data fidelity constraint balance parameter, the time step of noise peak, the number of VMD decomposition and the iteration accuracy, the decomposed sub components, the spectrum of sub components and the center frequency of each mode can be obtained.)

进行图像颜色的传输，使源图像变为目标图像颜色(Color image transmission, so that the source image to target image color)

迫零和最小均方误差比较，非常好的程序，保证可以仿真出图形(DIP text book kmeans image segmentation Input: ima: grey color image k: Number of classes Output: mu: vector of class means mask:)