QPSO

说明：  谱减法 数字信号处理 语音信号加强剥离噪声的MATLAB代码，分帧-加窗-减谱-重现-测试(noise reduction spectral subtraction speech enhancement)

matlab下实现的pca降维算法,降低数据维数，保留数据的主特征(pca dimensionality reduction algorithm on matlab)

It is a small part of code that used for clustering approach

to simulate the water level in the tanks. to verify its stability, controllability and observability. design kalman filter and define and simulate the Kalman estimator(Kalman filter of a two tank system)

移动通信系统中常用的维特比解码器的实现程序。(The codes of Viterbi Decoder for mobile communication.)

卷积码编码与译码，维特比译码软判决，matlab汇编语言(Convolutional coding and decoding, soft decision Viterbi decoding, matlab assembly language)

利用Matlab仿真的泊松过程，包含齐次过程和非齐次过程，平稳过程等。(Matlab simulation of the Poisson process, including the process of homogeneous and inhomogeneous process, stationary process.)

Locality Preserving Projections(LPP),局部保留投影，可以找出高维空间中的数据在低维空间中的投影，并保留了数据之间的相关性(Locality Preserving Projections (LPP), partial retention projection, you can find the data in high-dimensional space in a low dimensional space projection, and retains the correlation between data)

粒子滤波 PF( Particle Filtering) 是在 贝叶斯滤波框架下基于 Monte Carlo 采样的统计滤波方法，可解 决非线性、非高斯的滤波问题，声源跟踪就属于这类问题。近年 来，基于粒子滤波的声源跟踪算法已成为研究的热点。 (he real acoustic data recorded in a typi- cal meeting room using a small-scale microphone array is used for tracking experiments． Results show that the proposed algorithm can realise effectively the orientation tracking of the randomly walking speaker，in which，the root mean square error of tracking in direction of the hori- zontal angle and the elevation are all less than 5°． )

基于matlab的三相桥式整流电路仿真模型的仿真(Three-phase bridge rectifier circuit simulation model)