add-noise-and-remove-noise

说明：  this code is usable for embed watermark into image

HERE IS GOOD EXAMPLE OF PSO

二维变分模态分解可于图象处理等，最新的自适应分解方法(2D Variational Mode Decomposition，WHICH CAN BE USED FOR IMAGE )

在无线通信体系中,由于开放的通信信道条件,卫星通信系统中通信链路容易受到平均大气条件的影响,尤其是采用Ka波段的高频信号的系统,容易受到降雨造成的雨衰影响,严重影响了系统的有效性和可靠性。(In a wireless communication system, the communication channel open, average atmospheric conditions vulnerable to the communication link in satellite communication system, especially the system of high frequency signal using Ka band, vulnerable to the influence of rain attenuation caused by rainfall, seriously affect the validity and reliability of the system. In digital systems, channel coding is often used to improve reliability, while modulation is used to ensure effectiveness. Low order modulation and large redundancy coding are adopted to improve the reliability.)

说明：  matlab进行PID控制的仿真源程序 包括simulink仿真(matlab source code for simulation of PID control, including simulink simulation)

甘肃景泰二期工程水费计算器，采用matlab2014a（32位）开发，运行需要安装其编译器MyAppInstaller_mcr，编译器下载地址后续会补上(Gansu Jingtai the two phase of the project cost calculator, the matlab2014a (32 bit) development, operation need to install the compiler MyAppInstaller_mcr compiler download address follow-up will fill the Gansu Jingtai the two phase of the project cost calculator, the matlab2014a (32 bit) development, operation needed to mount the MyAppInstaller_mcr compiler, the compiler download address follow-up will fill)

随机振动的功率谱分析，其中的程序对于理解随机振动非常有帮助，希望大家下载学习(Random vibration is very useful,this file is help for the random vibration.)

用于遗传算法的工具包，可自行修改适应度函数后使用。(The toolkit for genetic algorithm can be used after self-modifying the fitness function.)

以2PSK为例仿真说明数字频带传输的整个过程。(Description 2PSK simulation as an example to figure the whole process of transmission band.)

说明：  基于核函数的偏最小二乘算法，先对原矩阵进行核函数非线性变化，再用非线性迭代求解(Kernel-based partial least-squares algorithm, first the original non-linear function of changes in the nuclear matrix, and then non-linear iterative solution)