mlsift

一个MATLAB的中文帮助文档，方便你在编程过程中查询各个函数的意义！(A help document for MATLAB，very usefull for you use the MATLAB！)

详细讲解了KALMAN 滤波的理论和KALMAN 滤波应用背景,讲的很详细,适合教学!(Explained in detail the theory and KALMAN KALMAN filter filtering application background, speak in great detail, suitable for teaching!)

Principal Component Analysis code

说明：  滑模状态观测器，通过支持向量机的方法来辨识滑模状态观测器的参数(Sliding mode observer, through the support vector machine method to identify the parameters of sliding mode observer)

在matlab下编程，实现对不同生硬的识别，效果非常好，能识别差别很小的不同声音。(At under matlab programming, implementation of different identification blunt, very good results to identify small differences in different voices.)

跳频信号的调制解调过程，代码和短时傅里叶变换，代码比较详细(FH signal modulation and demodulation process, code, and short-time Fourier transform, the code in more detail)

to find the discrete fourier transform using the fast fourier algorithm, any sequence of lengths which are multiples of 2 simply append zeros to satisfy this requirement

利用EM算法对状态空间模型中的参数进行辨识，效果良好(The EM algorithm is used to identify the parameters in the state space model, and the result is good.)

超声波层析成像算法，执行文件，基于MATLAB(Ultrasonic tomography algorithm, executable file, based on MATLAB)

％ 文件名：randlsbget.m ％ 程序员:余波 ％ 编写时间:2007.6.25 ％ 函数功能: 本函数将完成提取隐秘于上的秘密信息 ％ 输入格式举例:result=( scover.jpg ,56, secret.txt ,2001) ％ 参数说明: ％ output是信息隐藏后的图象 ％ len_total是秘密信息的长度 ％ goalfile是提取出的秘密信息文件 ％ key是随机间隔函数的密钥 ％ result是提取的信息 function result=randlsbget(output,len_total,goalfile,key) ste_cover=imread(output) ste_cover=double(ste_cover) ％ 判断嵌入信息量是否过大 [m,n]=size(ste_cover) frr=fopen(goalfile, a ) ％ p作为信息嵌入位计数器将信息序列写回文本文件 p=1 ％ 调用随机间隔函数选取像素点 [row,col]=randinterval(ste_cover,len_toal,key) for i=:len_toal if bitand(ste_cover(row(i),col(i)),1)==1 fwrite(frr,1, bit1 ) result(p,1) else fwrite(frr,0, bit1 ) result(p,1)=0 end if p==len_total break end p=p+1 end fclose(frr) ()