ImageEnhance

Training based channel estimation

遗传算法，Rastrigin 函数，清晰明确，认真仔细，希望快点上传，(Genetic algorithms, Rastrigin function，Clear, carefully, hoping upload,)

用matlab调用摄像头，直接放在命令框里运行，屡试不爽(motivate the camera using matlab, for further processing.)

五对角占优线性方程组求解的MATLAB 程序MYLU。 输入参数A为系数矩阵，F为右端向量。输出参数L，U为A的LU 分解A=LU，X为解向量。(five pairs diagonally dominant linear equations MYLU the MATLAB program. A input parameters for the coefficient matrix, F subguadratic vector. Output parameters L, U of A LU decomposition A = LU, X-Solutions for Vector.)

若不希望用与估计输入信号矢量有关的相关矩阵来加快LMS算法的收敛速度，那么可用变步长方法来缩短其自适应收敛过程，其中一个主要的方法是归一化LMS算法（NLMS算法），变步长 的更新公式可写成 W（n+1）=w（n）+ e（n）x（n） =w（n）+ （3.1） 式中， = e（n）x（n）表示滤波权矢量迭代更新的调整量。为了达到快速收敛的目的，必须合适的选择变步长 的值，一个可能策略是尽可能多地减少瞬时平方误差，即用瞬时平方误差作为均方误差的MSE简单估计，这也是LMS算法的基本思想。 (Want to estimate if the input signal vector and the relevant matrix to speed up the convergence rate of LMS algorithm, then the variable step size method can be used to shorten its adaptive convergence process, one of the main method is normalized LMS algorithm (NLMS algorithm) , variable step-size update formula can be written W (n+ 1) = w (n)+ e (n) x (n) = w (n)+ (3.1) where, = e (n) x (n) the right to express filter update vector iterative adjust the volume. In order to achieve the purpose of fast convergence, we must choose the appropriate value of variable step size, a possible strategy is as much as possible to reduce the instantaneous squared error, which uses the instantaneous squared error as the mean square error MSE of the simple estimate, which is the basic LMS algorithm思想.)

applying cropping, median filter, contrast stretching and laplacian filter

现在我终于找到了一份,它以FUNCTION的形式,再现了OFDM映射,IDFT/DFT,同步(时间/频率同步)和信道估计,以及频率偏移的估计等一系列代码.希望大家能从中得到你需要的东西. (Now I finally found a copy of it to the form of FUNCTION, reproduces OFDM mapping, IDFT/DFT, synchronized (time/frequency synchronization), and channel estimation, as well as the frequency deviation of the estimated range of the code. I hope that everyone will be you need.)

利用MUSIC算法对函数的频率进行估计并画出图形(you can obtain frequency of the function by the MUSIC algorithm and get the figure)

用传输矩阵法解一维光子晶体能带，透过率，以及群速度方向问题，概念清晰，自己编写的，应该比较容易看懂。(the transmission matrix method for one-dimensional photonic crystal, whose parameters are from the paper "negative refraction in one dimensional photonic crystal without negative refractive index material" IJMOT, 2010,5(4))

信号处理中的基于burg算法的功率谱估计的matlab仿真程序(matlab program of burg power spectrum estimation algorithm )