matlab-backgroud-recognize

本代码是波束空间MUSIC算法的源程序。采用波束空间MUSIC算法进行DOA估计(This code is the source beam space MUSIC algorithm. MUSIC algorithm using beam-space DOA estimation)

This is tsp code. you can use it

说明：  BFGS是一类凸优化算法；对无约束优化问题十分有效。(Convex optimization algorithm; unconstrained optimization)

说明：  mcmc的matlab实现，可用于参数估计(mcmc code by MATLAB,it can use to estimate the parameters)

基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)

对一个给定的状态转移矩阵求其联合分布矩阵，联合熵，平均互信息量以及共熵。可以画出平均互信息量的曲线(For a given state transition matrix of their joint distribution matrix, the joint entropy, mutual information and the average total entropy. Can draw the curve of the average mutual information)

实现turbo码的编码和解码，是一个递归卷积码的编解码的程序(Turbo code to achieve the encoding and decoding)

粒子群算法的matlab源代码，绝对可用！(Particle swarm optimization algorithm source code, absolutely free!)

prony算法的MATLAB程序，可直接运行，可设置迭代次数p，次数越大拟合效果越好(Prony algorithm MATLAB procedures, can be directly run, can set the number of iterations of P, the number of times the better the better fitting results)

Matlab源文件将矩阵m中所有a元素的替换为b元素。(Matlab source file will be a matrix m of all elements for the b element to replace.)