Audio-feature-extraction

This MATLAB exercise designs and implements a pitch period detector based on detecting and tracking peaks in the autocorrelation of the LPC error signal during regions of voiced speech. The pitch detection procedure is called the SIFT (Simple Inverse Filtering Tracking) method. The SIFT pitch period detector uses a secondary autocorrelation peak in order to detect and correct pitch period detection errors due to effects such as pitch period doubling and related phenomena.

本程序在matlab环境下，基于粒子群算法对pid控制器进行优化控制,从而完成性能更优(The program in matlab environment, based on particle swarm optimization algorithm pid controller to control, thus completing the better performance)

该代码可以实现对非平稳水文序列的消噪处理(It may realize the elimination of noise in stochastic hydrological series.)

用钱买回来的资料.利用CMOS锁相环芯片实现ASK信号调制与解调(CMOS PLL chip using ASK modulation and demodulation)

多分类支持向量机实现方法的分析比较：一对一、一对多和DAG的对比，比较专业，(more SVM method of comparison : one-to-one, one-to-many and DAG contrast, more professional-huh)

kernelized fuzzy rough set based feature evaluation selection

说明：  SOGI一个仿真，自己搭的，功能是对的，可以测试。(SOGI is OK.dual second-order generalized integrator PLL.)

局部二进制模式ＬＢＰ，介绍了三种不同的ＬＢＰ算子，用于分析图像的局部纹理特征．(local binary mode LBP, introduced three different LBP operator, Image Analysis for the local texture characteristics.)

基于RSSI的距离测量 matlab 将接收信号强度RSSI转化为距离，发射信号经衰减到达接收端,根据接收信号的强弱计算T-R距离(RSSI-based distance measuring the received signal strength RSSI matlab converted into distance, attenuated transmitted signal arrive at the receiver end, according to the strength of the received signal the calculation TR)

几个常见的用于聚类分析的指标，包括紧密度，离散度等(some clustering analysis indexes)