dafei08

说明：  能够清晰的分析线性调频信号的频谱特性，能够很好的帮助理解lfm信号(Can clear analysis of linear FM signal spectrum characteristics, can be very helpful in understanding LFM signal)

RS分形算法matlab代码实现,即利用RS方法计算时间序列的分形hurst指数(RS fractal algorithm matlab code realization, i.e., using RS method to calculate the fractal time series hurst index)

给出了2011年全国数学建模A题的画图程序 (Shows the 2011 issue of National Mathematical Modeling A drawing program)

this program simulates 1D electromagnetic Maxwell equations "propagation in different media", by using finite difference time domain method FDTD

说明：  仿真实现噪声调幅干扰信号,信号形式为一般形式，其中包含(simulation of noise moding jamming signal)

用MATLAB求解三元物系的NRTL方程，可以供大家参考使用(Ternary System on MATLAB to solve the NRTL equation, for your use and reference)

matlab的一些程序的基础，希望对有需要的人有些帮助。(The basis of some programs in MATLAB is expected to be helpful to those in need.)

输入各个字符及对应出现的次数 ； 建立赫夫曼树并对各个字符进行编码 ；然后 对 输入 的 二进制 串进行 译码(Enter the various characters and the corresponding number of emerging establish Huffman tree and the various characters coding then enter strings of binary decoding)

inverse filtering and wiener filtering

数字水印lsb算法。matlab实现。空域算法，替换各像素最低位，不可见性较强，适用于脆弱水印。(Lsb watermarking algorithm. matlab implementation. Airspace algorithm, replacing the lowest level of each pixel, invisible and strong, suitable for fragile watermarking.)