sem_MATLAB_vectormanip

旋转圆盘的传递矩阵算法计算变厚度圆盘的应力位移(Rotating disk of the transfer matrix algorithm to calculate the stress variable thickness disc displacement)

Simulations of rectangular waveguide using matlab

MATLAB 2007 小波分析理论 第十八章代码 帮助大家学习小波(MATLAB 2007 wavelet analysis theory Chapter XVIII code to help you learn wavelet)

关于相控阵雷达的经典书籍，对学习雷达相当有帮助(On the phased array radar on the classic books, for learning radar quite helpful)

四元数Hartley仿射变换。对研究四元数Hartley仿射变换的不变性有帮助(quaternion hartley affine transform～～)

无线通信系统中,信道间的相关性随着天线数目的增加而减小,当趋于无穷时,可视为正交.此为这一观点的仿真程序.(In wireless communication system, the correlation between channel and decreased as the number of antennas, when becomes infinite, can be treated as orthogonal. This a simulation program for this view.)

报童问题(负指数分布) 几个参数： 卖出报纸挣a元，退回报纸赔b元 卖报量y,订报量z，订报量上限z_up 观察期的总天数t,用于积累天数的ti 总的平均损失量ave_loss，供过于求损失loss1,供小于求损失loss2,ave_loss=loss1+loss2 最佳订报量superz,最小损失量ave_loss_min (newsvender)

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) )

For wavelength dispersion in optical waveguide.

电力系统专业本科生可以看下，用于计算三机九节点系统的潮流(calculation of the power flow)