matlab-and-trace

该程序实现了Baum-Welch算法，对于通信里面的调制解调有很大帮助，其次，该程序具有通用性。(The program achieved the Baum-Welch algorithm, for the communication modem inside helps a lot, and secondly, the program has the versatility.)

creates a list of all subdirectories of a specific folder

最近交互式电源技术，软交换、同步整流、频率固定(Alternating expressions Power technology recently、Softswitch, synchronous rectification, fixed frequency)

it s about digital watermark using LSBs, DCT and Wavelet methods

手工指定节点的编号以及位置之后，可以自动生成节点的坐标，以及杆的左右节点，不需要手动输入。(make the topology of truss)

对于数据的分类和处理有很大帮助的函数用法。(Be of great help for the classification of the data and processing functions usage.)

Sliding mode control

说明：  该软件和代码实现的功能是对图象的加密和解密,运行环境是Xp+matlab,代码中有说明,很容易看明白.(the software code and the functions of the image of encryption and decryption, the environment is Xp Matlab, the code is described, it is easy to see to understand.)

matlab中运用hough变换，设定恰当的阈值，将超过阈值的点在三维空间标示出来&将三维参数矩阵根据半径的不同做成不同的帧，制作成视频(hough transform matlab in use, set the appropriate threshold, will exceed the threshold point in three-dimensional space marked out & three-dimensional parameter matrix made of different frames depending on the radius, made into video)

计算阶跃折射率光纤传播常数、归一化频率、截止波长、导模数量等( Calculate for Step Index Fibers (using MATLAB): a) Propagation constant (β) b) Normalized propagation constant (b) c) V number (V) d) Check whether the fiber is single mode or multi mode. e) Graph between normalized propagation constant (b) and V number f) Cut off wavelength (λc) g) Number of modes traveling in fiber (Ms) )