matlab_talk

The code implements the following paper: Guorong Xuan, Jiang Zhu, Jidong Chen, Shi Y.Q., Zhicheng Ni, Wei Su, "Distortionless data hiding based on integer wavelet transform" IET Electronics Letters, Volume: 38, Issue 25, page 1646- 1648, December 2002. (ISSN: 0013-5194) The watermark embedding and extraction modules have been implemented separately. The watermark embedding module embeds the watermark using bitplane compression in the integer wavelet transform domain. The watermark extraction module extracts the previously embedded watermark and restores the original image. A logo image is used as a watermark but can be replaced with any thing.

这是在AR模型的功率谱估计，对比经典谱估计有明显的优点，是一种新的估计。(This is the AR model of the power spectrum estimation, contrast classical spectrum estimation has obvious advantages, is a new estimate.)

topsis college selection

说明：  基于matlab 用s函数编写的模糊控制代码(Written in s—function to achieve fuzzy control based on matlab)

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。 (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 )

非相干解调,赶紧下载，绝对原创，很好 很好很好(non coherent demodulation)

说明：  快速脊波逆变换。也称为伴随和伪逆。也成为快速三角波逆变换。(Fast Inverse Curvelet Transform.This is in fact the adjoint, also the pseudo-inverse)

产生两个均值为m,方差为sgma的高斯随机变量，当输入参数只有一个时，认为均值为0。(mean to have two m, sgma variance for the Gaussian random variables, when only one input parameters, that the mean of 0.)

simulink model of an z source inverter. try to verify the performance step by step. it is for study purpose..

可以计算非线性薛定愕方程的exe程序,代码是matlab的( This program is a simple introduction to the Fast Fourier Transform Analytic and numerical solution are take into account. The code(MATLAB) can be used to simulate Nonlinear Schrodinger Equation (NLSE))