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利用模式理论，对给定几何尺寸以及折射率分布的光纤进行模式求解与绘图，该程序给出LP21模的求解与绘图。(the LP21 mode of the fiber)

利用matlab的PCA对不同人的不同动作的图形分类(Matlab using the PCA of the different people of different graphical classification action)

对一维信号的核心算法分析，腐蚀膨胀源代码；(A one-dimensional signal analysis of the core algorithm )

TolPac=1 输入数据块数 PacketLen=10 每块的符号数目 M=64 调制指数 SNR=20 NFFT=256 Length of IFFTCpLength=16 Length of Prefix NSubc=64 Number of subcarriers freoff=0.5 归一化频偏2.25,phaseoff=0.1 (TolPac = 1 input data blocks the the PACKETLEN 10 of the span per block, the number of symbols M = 64 modulation index SNR = 20 NFFT = 256 the length of IFFTCpLength = 16 Length of Prefix NSubc = 64 Number of subcarriers freoff = 0.5 the normalization frequency offset 2.25 phaseoff = 0.1 )

3 phase inverter fed by boost converter3 phase inverter fed by boost converter3 phase inverter fed by boost converter3 phase inverter fed by boost converter3 phase inverter fed by boost converter

model of 7-segment display in matlab/simulink

说明：  matlab中微分方程的解法，及其应该注意的问题(matlab in the solution of differential equations, and should pay attention to the issue of)

MSChart操作实例，可以轻松编码实现饼图，折线图，柱状图(MSChart operation example, you can easily Coding pie charts, line charts, bar charts)

QAM constellation with noise and channel(QAM constellation)

this is background subtraction code.