MATLAB_ks

功能：该程序用于仿真截断正态概率下舰艇机动加速度均值与方差的关系，输入：舰艇的最大机动加速度，输出：两幅加速度均值与方差的关系图。(Features: The program for the simulation of truncated normal probability of ship maneuvering the relationship between the mean and variance, type: motor ships of the largest acceleration, output: 2 acceleration mean and variance diagram.)

This program takes the speech file and number of poles as inputs and gives LPC coefficients and the gain factor as output.Also includes code to find out LSFs.Code for LMS algorithm also included.

AWGN信道下MRC的检测性能比较，MATLAB仿真程序(AWGN channel MRC detection performance comparison, MATLAB simulation program)

series normal condition 345

小波变换进行变速箱故障诊断 首先将s1和s2信号时域谱（s1代表维修前的振动信号，s2代表维修后的振动信号），画出来进行对比，会发现s1信号的振动幅值会比较高；然后对s1和s2分别进行小波分解并画出各层的时域谱，只对比s1和s2分后的最高时域谱，s2更加的具有周期性，且幅值较小，s2周期性不够明显，且振动过于密集。分析完时域谱后开始分析频谱，首先对原信号s1和s2fft转换，得到频谱图，如图，然后再对小波分析后高频部分进行fft转换，做出频谱图。对比后我们发现，在f 2375HZ出（也就是齿轮的啮合频率），s1信号频谱幅值会有急剧的升高，然后，其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。(Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha)

该算法是粒子群算法和网格直接搜索算法的结合，具有稳定性高的优点。(This is a combination of particle swarm optimization algorithm and grid direct search algorithm.)

说明：  利用matlab实现的数字波束形成算法，适合初学者学习。(Implementation of Digital Beamforming Algorithms)

fisher最优分割法的MATLAB算法(fisher s MATLAB code)

这是一个快速傅里叶变换分析谐波类程序，以及生成火柴梗图的程序(This is a class of fast Fourier transform analysis of harmonic procedures, and the program generates Stick Figure)

说明：  用0tsu方法和梯度算法分别对图像进行边缘提取(Use 0tsu method and gradient algorithm to extract the edge of the image respectively)