fft

说明：  这个水印一般般利用DWT变换和DCT变换嵌入水印，加上了Arnold变换使图片水印的抗MP3压缩攻击有所提高。(The watermark in general as the use of DWT transform and DCT transform embedded watermark, coupled with the Arnold transform to image watermarking against MP3 compression attacks increased.)

MATLAB中的语音信号分帧， 语音分析中的窗函数， 语音信号短时时域处理， 语音信号短时频域处理(MATLAB voice signal framing, Voice analysis window function, Short time-domain speech signal processing, Short speech signal in the frequency domain processing)

Stegnography based security technique

还是关于整个OFDMA系统的matlab仿真程序。没有文档说明。(Or on the entire OFDMA system matlab simulation program. There is no documentation.)

adfig function for wavelet processing in wavelab

mfcc用于求取训练样本的特征值，其需要melbankm和enframe两个程序。 enframe用于将语音分帧，melbankm用于产生mel三角滤波器组，vqlbg用于获取说话人码书，disteu程序用于计算两个矩阵间的距离，(mfcc strike eigenvalues ​ ​ for the training sample, which requires melbankm and enframe two procedures. enframe for the voice of the frame, melbankm used to produce the triangular mel filter bank, vqlbg codebook is used to get people talking, disteu procedures used to calculate the distance between two matrices,)

说明：  用频率采样法设计具有线性相位的FIR低通滤波器(Design of FIR low pass filter with linear phase by frequency sampling)

ball beam 球杆系统pid仿真程序，附有gui界面 实现了球杆系统的线性和非线性仿真 供需要做此类大作业的学生参考(pid club ball beam system simulation program with gui interface realize the ball-beam system of linear and nonlinear simulation of supply and demand such a large operation to be done to students)

说明：  增量式PID的MATLAB实现 有源代码(Incremental PID of the MATLAB source code to achieve)

预测函数控制代码通过轧辊压下实现对铝带轧制系统的纠偏(Predictive function control codes for aluminum rolling reduction achieved by correcting the system rolls)