pid

features to voice and un voice classification , pitch determination whith AMDF and other features like Spectral Centroid and Entropy of the energy

This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated. The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.

说明：  本例程解决了一个两个目标的优化问题，采用的是权重系数法求解。求解过程中采用了代沟。程序中有详细的注释(This routine solves a two-goal optimization problem, using the weight coefficient method. Solving process used in the generation gap. Procedures are detailed in the Notes)

text extraction using canny

introduction to matlab and weka!!!!!!!!!!!!!!!!

PABX with 8 channels

Linear Graph Embedding 函数形式，可以直接调用(Linear Graph Embedding functional form can be called directly)

文章Decoding by Linear Programming实现源代码(Article Decoding by Linear Programming implementation source code)

说明：  matlab 中 基于avi视频的人脸检测(avi video matlab-based Face Detection)

Used to make fast Source Code for Andriod.