multiuser

关于自适应滤波的算法仿真，其中应用了LMS算法和RLS算法，也比较了他们的性能(Adaptive filtering algorithms on the simulation, which applied the LMS algorithm and RLS algorithm, also compare the performance of their)

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.)

差分BPSK系统仿真,输入有效值后,可产生误码率曲线(difference BPSK system simulation, the importation of RMS, can produce BER curves)

matlab 分别利用邻域平均和K点平均对椒盐噪声图像，高斯噪声图像，乘性噪声图像进行处理，比较两者的差别(matlab use neighborhood were average and K-point average for salt and pepper noise image, Gaussian noise images, image processing multiplicative noise, compare the difference between the two)

建模2011A程序源代码的一部分，欢迎大家下载(Traffic flow problem)

产生一m序列，其特征多相式:1+x^3+x^5,加扰序列c(k) 满足c(k)=a(k)+c(k-3)+c(k-5),对m序列进行加解扰(Create a m sequence is characterized by multi-phase type: 1+ x ^ 3+ x ^ 5, scrambling sequence c (k) to meet the c (k) = a (k)+ c (k-3)+ c (k-5), the m sequence Deinterference)

说明：  中间的程序是外推程序,......... 但是下面的程序仿真部分和外推部分的标号有写出入,因为不是同一时期编的 请大家注意： 程序中用的是频域外推法，在葛德彪的书中有详细的介绍。(Central procedure is the extrapolation procedure ,......... but some of the following procedures for simulation and extrapolation part of the labeling has to write out, because they are not made during the same period the U.S. Please Note: The procedure used is the frequency of extra-territorial extrapolation method, in the GE De-biao book has a detailed introduction.)

CPN算法的简单描述及实现，包括M文件和演示PPT，希望对大家有所帮助。(A simple description of the CPN algorithm and implementation, including the M-file and demonstrates the PPT, we want to help.)

1.AQMC较正的matlab源代码，适用于各种DAC及正交调制器引起的IQ不平衡较正(Than positive 1.AQMC matlab source code, suitable for all kinds caused by the DAC and quadrature modulator IQ imbalance correction)

灰色模型GM(1,1)的matlab代码(Gray model)