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自己练习用matlab语言编写的信号捕捉程序(Practice their own language with matlab signal capture process)

说明：  color image watermarking using DCT and DWT

共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数(Conjugate Gradient method (Conjugate Gradient) is between the steepest descent method between Newton method and a method, it only USES a derivative information, but overcome the steepest descent method slow convergence of weakness, but also avoid the Newton law needs to storage and computing Hesse inverse matrix and shortcomings, Conjugate Gradient method is not only solve linear equations with most of the large method, and also one of the most effective solution large nonlinear optimization of one of the algorithm. In all kinds of optimization algorithm, the conjugate gradient method is very important. Its advantage is the storage capacity needed, it has small step convergence, high stability, and doesn t require any exotic parameters numerical experiment, this is the modern scientific computing of the answer above problem sets)

利用matlab编写的vibe算法，处理速度比较慢，但对于学习了解vibe的原理有一定的帮助(Vibe algorithm by using matlab, processing speed is slow, but to learn the principle of vibe has certain help)

一个用于保存matlab生成的图像的工具包，避免一般保存图像时白边的出现。(A tool for storing the generated image matlab package generally kept to avoid the white side of the image appears.)

位场欧拉反褶积的程序，主要用于三维场源位置反演，可以自动提取最优化构造指数并进行反演。(Potential Field Euler deconvolution procedure, the main source for three-dimensional position of the field inversion can automatically extract index structure optimization and inversion.)

一些自适应信号处理的算法，包括广义互相关函数GCC时延估计，基于kaiser窗的双谱线插值FFT谐波分析。( Some adaptive signal processing algorithms, Including the generalized cross-correlation function GCC time delay estimation, Dual-line interpolation FFT harmonic analysis kaiser windows.)

matlab的两个小球碰撞的模拟程序，很简单的。平时没事瞎编的。(Matlab two small ball collision simulation program, a very simple. Nothing pleases the peacetime.)

基于MUSIC的DOA估计，算法简单较为快捷可以修改(easimation of DOA)

Function LOADWAV: loading of WAV-formated signal to vector. Usage: sig=loadwav(filename[,channels,length])