linear_array

split step fourier matlab funtion file

卷积编码和译码全过程的MATLAB源代码，已通过实验(Convolutional coding and decoding of the entire process of MATLAB source code, has passed the experimental)

说明：  matlab教程 含有较多的函数语句讲解以及函数命令的使用(matlab tutorial contains more statements to explain the function and the function of the use of the command)

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) )

LDA的matlab实现，得出alpaha和beta的值(the procedure to implement Latent Dirichlet Allocation ,the end of this procedure is the value of alpha and beta.)

two-dimensional maps on a torus or on a square to create new symmetric block encryption schemes. The schemes are especially useful for encryption of large amounts of data, such as digital images or electronic databases.

该程序在matlab环境下完成抽样量化编码功能（非均匀量化）。(err)

基于 的窗函数的各种窗函数的设计以及各个函数的性能参数分析以及仿真波形(Window function based on a variety of window function design and performance parameters of each function and the simulation waveform)

说明：  matlab程序计算四阶循环累积量，，输入两个参数，返回4个(matlab program to calculate fourth-order cyclic cumulant)

本程序是独立成分分析算法的主程序，在该程序中，通过调用子程序的方式实现了独立成分分析。但本程序不含子程序。(This procedure is the main independent component analysis algorithm, in this program by calling the subroutine way to achieve an independent component analysis.)