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再matlab上实现基于扩频的数字水印。图像处理(This is a simple spread-spectrum based informed watermarking implementation in MATLAB. )

说明：  采用Coif小波变换在matlAB中对信号进行压缩降噪处理并进行比较(Wavelet transform using Coif matlAB compress the signal in the noise reduction and compared)

说明：  通信原理方面的一些基础matlab程序,包含数字基带传输系统中升余弦滚降系统,最佳基带系统,基带信号眼图,OOK,2PSK,2FS,MPSk,DSB,SSB,VSB(Some basic aspects of communication theory matlab program, including digital baseband transmission system Cosine system, the best base-band system, the baseband signal eye diagram, OOK, 2PSK, 2FS, MPSk, DSB, SSB, VSB)

SHIF 算法的matlab实现,可以用于比较SHIF算法(SHIF Algorithm Implementation of Matlab can be used in the comparison algorithm SHIF)

使用matlab对矩阵中的元素进行蛇形访问，并依次存放到新的向量里面(snake-like access to the elements of the matrix by MATLAB, and sequentially stored into the new vector)

模拟退火算法的基本思想是从一给定解开始,从邻域中随机产生另一个解,接受Metropolis准则允许目标函数在有限范围内变坏,它由一控制参数t决定,其作用类似于物理过程中的温度T,对于控制参数的每一取值,算法持续进行“产生—判断—接受或舍去”的迭代过程,对应着固体在某一恒定温度下的趋于热平衡的过程,当控制参数逐渐减小并趋于0时,系统越来越趋于平衡态,最后系统状态对应于优化问题的全局最优解,该过程也称为冷却过程,由于固体退火必须缓慢降温,才能使固体在每一温度下都达到热平衡,最终趋于平衡状态,因此控制参数t经缓慢衰减,才能确保模拟退火算法最终优化问题的整体最优解。(Simulated annealing algorithm based on the idea that a given solution from the beginning, randomly generated from the adjacent domain to another solution, Metropolis acceptance criteria for the objective function to allow a limited range of deterioration, which is a control parameter t decided that its role is similar to the physical the course of the temperature T, the control parameters for each value, the algorithm continued to "have- to determine- to accept or rounding" of the iterative process, corresponding to a solid at a constant temperature of the process tends to thermal equilibrium, when control parameters and tended to decrease gradually 0:00, the system equilibrium state more and more, and finally the system state corresponds to the optimization problem of global optimal solution, the process is also known as the cooling process must be slow as a result of annealing temperature of solid to make solid temperature in each of them had attained thermal equilibrium, and ultim)

pitchn,功能：求一句话的语音基音频率包络。(pitchn matlab)

在matlab开发环境下实现了模拟退火的智能算法程序(In the matlab development environment can only achieve a simulated annealing algorithm)

understanding GPS KAPLAN Second edition

惯导数据的仿真及验证，是在matlab上运行的。(Simulation and verification of the inertial derivative)