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说明：  TDFD,双脊金属加载矩形波导，的基模和第一个高阶模的色散曲线计算,TE模的仿真(TDFD,双脊metal loaded rectangular waveguide, the fundamental mode and first higher order mode dispersion curve calculation, TE-mode simulation)

将彩色图像，转化到Lab空间，利用K-means类聚对图像进行分割(The color image is transformed into Lab space, the use of the class of K-means poly image segmentation)

使用泰勒算法设计的具有抑制旁瓣功能的雷达方向图(Using Taylor algorithm design direction of the radar chart)

说明：  用Matlab编写的自动多阈值分割程序，分割图像之前采用自动平滑图像(prepared using Matlab automatic threshold segmentation procedures, image segmentation before the introduction of automatic image smoothing)

triphase pulse width modulation

用积分法进行反应速率分析得到速率常数k和反应级数n(Integral method for analysis of the reaction rate by the rate constant k and reaction order n)

说明：  COFDM的simulink仿真（QPSK）(The simulink simulation of COFDM (QPSK))

基于MATLAB的卫星飞行轨道的分析，供初学着参考学习使用(MATLAB-based analysis of the satellite flight track for beginners learning to use the reference)

A polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though it is a simplified special case.Polyalphabetic substitution ciphers are useful because the are less easily broken by frequency analysis, however if an attacker knows for instance that the message has a period n, then he simply can individually frequency analyze each cipher alphabet. The number of letters encrypted before a polyalphabetic substitution cipher returns to its first cipher alphabet is called its period. The larger the period, the stronger the cipher. Of course, this method of encryption is certainly not secure by any definition and should not be applied to any real-life scenarios.

ofdm modulation in matlab