COFDM_QPSK

fastica 独立成分分析的matlab代码(Independent Component Analysis FastICA matlab code)

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) )

功能近红外光谱信号的极限漂移与其有用信号重叠，高通滤波会对有用信号产生影响，该方法可有效出去极限漂移(program for fNIR detrending)

quickly search for the fourier series

induction motor simulation in matlab

一个基于matlab的有限元分析程序，用三角形单元对二位有限元问题进行分析(A matlab based on the finite element analysis program, two finite element analysis using triangular elements)

进行LTE的码块分割，在lTE系统的链路级仿真中，发端的设计编程。属于LTE码块分割器。(LTE code segement)

在一个程序中通过修改参数实现三种调制方式，分别是AM、DSB和FM。 注释详细，适合初学者参考。(It s an analog modulation program by change a parameter.The three modulation types are AM, DSB, and FM. The program is easy to read and suitable for beginners.)

说明：  本例是一个采用帧差法的运动跟踪代码，其对背景不变的单目标有较好的处理(This example is a frame difference method using the movement of the tracking code, change the background of its single objective better deal)

说明：  利用matlab环境设计了DEA方法中CCR模型和CCGSS模型的计算程序(Environmental design using matlab CCR DEA model and the method of calculation procedure CCGSS model)