ch3example1A

利用DCT域进行扩频水印的嵌入,含实验图像，和各种经典的攻击方式。可选择嵌入强度和攻击强度。利用Matlab编写(DCT domain using spread-spectrum watermark embedding, with the experimental images, and various classical attacks. The option embedded in the strength and intensity of attacks. Prepared using Matlab)

说明：  bfsk调制，可出来图形，经过了awgn(bfsk modulation may be out of graphics, after awgn)

说明：  灰色模型，用于只有少数数据的情况，有良好的收敛性，简单有效(GM(1,1)model,be used to pretect data)

this code is of median filtering. this code is only for 3x3 window.

基于Matlab分析矩量法在线天线中的应用(Analysis of the line antennas method of moments based on Matlab)

基于MATLAB的振动信号的KAISER滤波与频谱分析,可用于加速度传感器信号(based on MATLAB KAISER vibration signal filtering and spectrum analysis, acceleration sensor can be used for signal)

使用matlab编写的语音信号处理程序，全套程序都有，可以出结果(Prepared using matlab speech signal processing procedures, has a full set of procedures, results)

MATLAB的库提供了一个指针的指针和MATLAB的数据结构实现(MATLAB Pointer Library provides an implemetation of pointers and data structures in MATLAB )

维纳滤波算法去除加噪声音乐程序，效果比较好，有图为证。(Wiener filter algorithm to remove noise adding music program, the effect is better, has a license to the graph. )

Newmark 算法案例，可以对初学者起到帮助，适用于结构力学(Newmark algorithm cases, can help beginners play for structural mechanics)