20080333frft

利用STDM方法嵌入水印信息，可设置量化步长，选择各种经典的攻击方式，控制攻击强弱，返回误码率和峰值信噪比(Stdm method using embedded watermark information, to set the quantization step size, choose a variety of classic attacks, controlling the strength of the attack and returned to the bit error rate and peak signal to noise ratio)

语音信号进行分析、处理和设计。用MATLAB做变声器的原理是通过改变输入声音频率，进而改变声音的音色、音调，使输出声音在感官上与原声音不同。变声器是借助对声音音色和音调的双重复合改变，实现输出声音的改变。通过自己发声，共振峰频率的改变是基于重采样实现的(Speech signal analysis, processing and design. MATLAB do voice-changer works by changing the input frequency of the sound, and then change the sound of the tone, pitch, so that the output audio with the original sound in different senses. Voice Changer is the use of sound timbre and tone of the dual composite changes, realize the output sound changes. Through their own sound, formant frequency change is implemented based on resampling)

一个简单的PID simulink控制倒立摆的模型建立(A simple PID simulink control of inverted pendulum model building)

说明：  k-g算法，NCPCG算法，KG-CP算法的信干比对比分析(kg algorithm, NCPCG algorithm, KG-CP algorithm SIR comparative analysis)

matlab 子程序集：The routines supplement the book, "Numerical Methods for Physics", 2nd Ed. (Prentice Hall).(matlab subroutine sets: The routines supplement the book, " Numerical Methods for Physics" , 2nd Ed. (Prentice Hall).)

数学建模学习资料，建模方面详细讲解，是初学者学习建模的最佳选择(Mathematical modeling of learning materials, modeling to explain in detail)

基于灰度共生矩阵和K均值聚类的纹理图像分割，MATLAB实现(texture image segmentation )

能够实现合成孔径雷达的反向投影成像算法，距离向实现脉冲压缩，方位向实现相干叠加。(It can realize the backprojection imaging algorithm of synthetic aperture radar, realize pulse compression in range direction, and realize coherent superposition in azimuth.)

linear 2 stat problem

利用MATLAB提取相关系数，按照matlab的滤波思路进行编写的IIR滤波程序，已经证明好用！(MATLAB is utilized to extract the correlation coefficient, according to the writing of IIR filter MATLAB filtering ideas for program, it has been proved useful!)