DOA_MVDR

语音识别是近年来发展非常迅速的一项计算机智能技术，广泛应用在语音控制、身份识别等多个领域。本次项目主要研究语音识别的预处理过程和特征参数的提取环节。通过对原始语音信号进行预加重和分帧、加窗，滤除低频干扰，提升对语音识别有用的部分，消除了部分噪音和失真。预处理之后进行信号的特征提取，主要选取了短时平均过零率和MFCC两个特征参数，应用matlab软件绘制波形图并提取特征参数矩阵，为之后的语音信号的识别打下了基础。(Speech recognition is a computer intelligent technology which has developed rapidly in recent years. It is widely used in speech control, identity recognition and other fields. This project mainly studies the pretreatment of speech recognition and the extraction of feature parameters. Through pre-emphasis, framing and windowing of the original speech signal, the low frequency interference is filtered out, the useful part of speech recognition is enhanced, and some noise and distortion are eliminated. After pretreatment, feature extraction of signal is carried out. Two feature parameters, short-term average zero-crossing rate and MFCC, are selected. Waveform diagram is drawn by MATLAB software and feature parameter matrix is extracted, which lays a foundation for speech signal recognition.)

高压断路器振动信号时频特征分析，STFT变换以及功率谱，matlab代码(High voltage circuit breakers，STFT)

Heat is a very important part of our life.

MIMO FILE IF YOU WANT TO SLOVE SOME DISTRIBUTION YOU CAN

遗传和粒子群算法的多目标例程，用了几个测试函数，效果还不错(Inheritance and multi-objective particle swarm optimization (pso) routines, used several test functions, the effect is good)

determines the intersection points of curves

距离保护傅里叶模型算法 使用图基滤波器 控制阻抗轨迹显示范围 在阻抗平面画出阻抗圆特性、整定阻抗直线特性和短路阻抗轨迹( Distance protection algorithm using the Fourier model-based filter control chart shows the range impedance locus in the impedance circle characteristic impedance plane plot, setting characteristics and short-circuit impedance line impedance locus)

对微波基础理论的Matlab仿真。对于微波初学者有借鉴作用。程序补充三(based on microwave theory of Matlab. Microwave for a beginner lessons. Added three procedures)

单个矢量传感器的波束仿真，并且波束的方向可以任意调整。(A single vector sensor beamforming simulation, and the direction of the beam can be adjusted.)

A very useful ploting function that plots the matlab correlation function up to user specified lags. You can also easily add titles.