3

对leach算法进行仿真，主要是leach的分簇路由算法(Algorithm is simulated on the leach. the main is cluster routing algorithm )

采样频率 fs=10000 轴承外环故障信号 fid=fopen( bearingout.dat , r ) 故障 N=1024 xdata=fread(fid,N, int16 ) fclose(fid) xdata=(xdata-mean(xdata))/std(xdata,1) 时域波形 figure(1) plot(1:N,xdata) xlabel( 时间 t/n ) ylabel( 电压 V/v ) db10小波进行4层分解 一维小波分解 [c,l] = wavedec(xdata,4, db10 ) 重构第1～4层细节信号 d4 = wrcoef( d ,c,l, db10 ,4) d3 = wrcoef( d ,c,l, db10 ,3) d2 = wrcoef( d ,c,l, db10 ,2) d1 = wrcoef( d ,c,l, db10 ,1) ( Sampling frequency fs = 10000 bearing outer ring fault signal fid = fopen (' bearingout.dat' , ' r' ) failure N = 1024 xdata = fread (fid, N, ' int16' ) fclose (fid ) xdata = (xdata-mean (xdata))/std (xdata, 1) time-domain waveform figure (1) plot (1: N, xdata) xlabel (' Time t/n' ) ylabel ( ' voltage V/v' ) db10 wavelet decomposition 4 layer one-dimensional wavelet decomposition [c, l] = wavedec (xdata, 4, ' db10' ) 1 ~ 4 reconstructed detail signal d4 = wrcoef (' d' , c, l, ' db10' , 4) d3 = wrcoef (' d' , c, l, ' db10' , 3) d2 = wrcoef (' d' , c, l, ' db10' , 2) d1 = wrcoef (' d' , c, l, ' db10' , 1) )

MATLAB基础知识详解PPT，可以更好的学习MATLAB(Detailed knowledge of MATLAB-based PPT, you can better learn MATLAB)

SRM angle generation

以速度为11m/s沿x轴做匀速直线运动，通过卡尔曼滤波跟踪目标，作出相应协方差图像，内有注释，根据相应功能可更改注释。(At the speed of 11 m/s, we perform uniform rectilinear motion along the X axis. We track the target through Kalman filter and make corresponding covariance images. There are annotations in it, and annotations can be changed according to the corresponding functions.)

说明：  使用EEMD对故障信号进行分解，提取不同imf的能量熵，有数据可直接运行。(EEMD is used to decompose the fault signals, extract the energy entropy of different IMF, and the data can be operated directly.)

谐波小波程序变参数的积分程序多点人工生成地震波程序低通滤波程序经验模式分解降噪程序(Harmonic Wavelet programmed parameters points integration process of artificial seismic waves to generate low-pass filtering process procedures empirical mode decomposition noise reduction procedure)

光纤陀螺输出误差的allan方差分析，使用的matlab仿真软件以及实际陀螺采样的数据进行分析。详细分析了5个误差的大小及其拟合曲线(FOG output error of the allan variance analysis, the use of matlab simulation software as well as actual gyroscope data sample for analysis. A detailed analysis of the size of error of 5 and its fitting curve)

使用Matlab，编程实现Turbo码的编码及其解码算法，并给出在AWGN信道下该信道编码的性能(use Matlab, Turbo programming code coding and decoding algorithm, and gives the AWGN channel under the Channel Coding Performance)

捷联惯导的解算程序，大家一起学习交流，有疑问的可以联系我。(The calculating program of sins, we learn together.)