matlab_intro

matlab讲义，附带部分源代码，是一份不错的学习matlab资料，哪个学校的忘记了。(matlab handouts, incidental part of the source code, is a good study matlab data, which schools have forgotten.)

Principal component analysis (PCA) is a popular tool for linear dimensionality reduction and feature extraction. Kernel PCA is the nonlinear form of PCA, which is promising in exposing the more complicated correlation between original high-dimensional features. In this paper, we first talk about the basic ideas of PCA and kernel PCA, and then focus on the reconstruction of pre-images for kernel PCA. We also give an introduction on how PCA is used in active shape models (ASMs), and discuss how kernel PCA can be applied to improve traditional ASMs. Then we show some experiment results to compare the performance of kernel PCA and traditional PCA for pattern classification. We also implement the kernel PCA-based ASMs, and use it to construct human face models.

pitch detection using cepstrum

主程序arma2Ddemo是对模拟图像的2DAR和ARMA参数估计。(arma2Ddemo: See and run the demo arma2Ddemo for an example of 2D AR and ARMA parameters estimation from simulated images. - sim_ar2d: generation of simulated 2D AR process. - sim_arma2d: generation of simulated 2D ARMA process. - ar2d: solves 2D yule walker to estimate AR parameters - arma2d: estimation of 2D ARMA parameters. First step: estimation of the gaussian input by inv_ar2d, Second step: linear system solution to estimates simultaneously AR and MA parameters, as explained in [1]. - inv_ar2d: first step in arma2d. Filters through inverse filter 1/AR an AR process, to generate its innovation Gaussian signal. It is used here to estimate the Gaussian noise input to the ARMA 2D process, approximating the ARMA model to a high order AR model. - poles2coeff: converts poles chosen by user to AR or MA coefficients (support function) )

说明：  线性MMSE均衡器的matlab源码,适应信道衰减不是很剧烈的情况(linear MMSE equalizer in Matlab source, adaptation channel attenuation is not very dramatic situation)

tutorial for coding by mstlsb for beginner student

人脸检测 matlab程序 程序简单精炼 适合初步入门人脸检测的初步学习(face detection program)

利用两段信号的相对差，对非整周期采用信号的频谱进行幅值和相位的校正。(The amplitude and phase of the signal spectrum are corrected by using the relative difference of the two segment signals.)

CPF for wscc 9 bus power system. power system dynamic and stability.

MATLAB实现排队系统的模拟仿真，对排队过程的仿真模拟。(MATLAB realization of queuing system simulation, simulation of queuing processes.)