20263525MPSKMQAMmudulation

应用粒子群优化算法优化bp网络的权值和阈值应用于故障诊断，程序可行，效果明显编写详细，注释清晰。(Application of particle swarm optimization algorithm to optimize the weights and thresholds of BP network is applied to fault diagnosis, the program is feasible, the effect is obvious, and the notes are clear.)

文章讨论了多变量灰色预测模型的算法, 给出多变量灰色预测模型的Matlab 程序. 通过实例说明算法程序的应 用和效果(This paper discusses multi-variable gray prediction model algorithm, given multivariable gray forecasting model of Matlab procedures. Algorithm by examples of their application and effectiveness)

对K-means聚类算法的改进X-means算法。针对K值如何设定的问题，利用BIC准则判断聚类点数量。同时附有两个初始聚类点的选择程序，自己选吧。(The improved X-means algorithm for K-means clustering algorithm. In view of the problem of how to set the K value, the number of clustering points is judged by the BIC criterion. At the same time, there are two initial clustering points of the selection program, choose it yourself.)

背景帧差法的最简单Matlab源代码，对初学者有很大的启发(Background frame difference Matlab source code for the most simple, a great inspiration for beginners)

fit_ML_normal - Maximum Likelihood fit of the laplace distribution of i.i.d. samples!. Given the samples of a laplace distribution, the PDF parameter is found fits data to the probability of the form: p(x) = 1/(2*b)*exp(-abs(x-u)/b) with parameters: u,b format: result = fit_ML_laplace( x,hAx ) input: x - vector, samples with laplace distribution to be parameterized hAx - handle of an axis, on which the fitted distribution is plotted if h is given empty, a figure is created. output: result - structure with the fields u,b - fitted parameters CRB_b - Cram?r-Rao Bound for the estimator value RMS - RMS error of the estimation type - ML

说明：  多载波调制，信道优化后的dmt程序，图像显示调整结果(Multi-carrier modulation, channel optimized dmt procedures, image display adjustment)

仿真图是速度、距离、幅度三维图像，能量熵的计算，Gabor小波变换与PCA的人脸识别代码。( FIG simulation speed, distance, amplitude three-dimensional image, Energy entropy calculation, Gabor wavelet transform and PCA face recognition code.)

sita ir mans kd par matricam

matlab simulation of a direct sequence spread specrum

this matlab code denoise the pink noise from pcg signal and generate the specogram