MATLAB-command-daqo

维纳滤波matlab源码，输入参数需为读出的一维语音文件，横向量(Wiener filtering matlab source)

This is to plot frequency spectrum using Welch method.

一个用于求解无对角分块矩阵线性方程组的matlab程序。带有误差函数。(a matlab program used for solving for the roots of huge linear equations by LU decompision.)

可以y9ng捱三顶四都v大少吃点 阿少吃点奥迪车爱迪生v大dsca点撒(You can y9ng endure three four are v A large eat less eat less Audi Edison v big dsca point spread)

根据学生两次考试成绩的数据来预测学生是否能被大学录取，用逻辑斯蒂回归算法实现，分别执行梯度下降算法、随机梯度下降算法、牛顿法(According student test scores twice to predict whether the student can be admitted to universities, implemented in logistic regression algorithm.)

对Lena图像128*128，进行QF=50和QF=40的压缩，然后解压缩，并分别计算压缩图像的PSNR，给出图像压缩后的图像(Lena image of 128* 128,QF=50 and 40 compression, then uncompress, and calculate the PSNR compressed image, after image compression)

说明：  Modify the Matlab Gauss Elimination routine given in lectures so that it (a) performs implicit complete pivoting, and (b) handles m right hand sides at once by performing an LU decomposition of the matrix A first and then doing forward substitution and back substitution (hence not modifying the right hand side as the elimination is perfomed). Test your program and then run it on the system AX = B(Modify the Matlab Gauss Elimination routine given in lectures so that it (a) performs implicit complete pivoting, and (b) handles m right hand sides at once by performing an LU decomposition of the matrix A first and then doing forward substitution and back substitution ( hence not modifying the right hand side as the elimination is perfomed). Test your program and then run it on the system AX = B)

分享给需要matlab的同学们～Share the need matlab classmates ~(Share the need matlab classmates ~)

通过幅相误差存在的情况下MUSIC谱峰与未存在幅相误差时的比较，可以看出幅相误差对DOA估计还是有很大的影响。此程序中加入的幅相误差参数服从高斯分布(Through the case of amplitude and phase errors exist MUSIC peaks when compared with the amplitude and phase error does not exist, it can be seen amplitude and phase errors have a lot of influence on DOA estimates. Amplitude and phase errors of the parameters of this program by adding Gaussian distribution)

this pdf is for using matlab for tem wave