hgfx1

通过修改图像像素值的后4低位比特，实现随机0～1序列水印信息的嵌入(Modify the four low bit， accomplish embedding random 0～1 watermark sequence. )

读取以.dat的数据文件；读取以MIT-BIH数据库的212格式文件(Read the MIT-BIH database 212 format data)

A basic tips of matlab

软开关在开关电源中的重要地位不言而喻，此代码实现了电源的软开关控制(Soft switching in the switching power supply in an important position is self-evident, this code implements the soft-switching power supply control)

the code leach in wireless sensor network

增广最小二乘法参数估计，系统辨识，针对含有输出噪声的SISO模型。(Augmented least squares parameter estimation, system identification, aimed at containing the output noise of the SISO model.)

lattice boltzmann code for cavity flow

所谓阶梯式控制，就是对未来控制量的变化加以约束，强迫未来控制量以一阶指数响应曲线的形式变化。在这种控制策略下，可以避免求解控制律时的矩阵求逆，且在处理约束限制时，可方便将 和 的约束转化为对 的约束，减少了算法计算量。(The so-called ladder-type control, is the change in the future to control the amount of bound, forced to the future control the amount of the first order exponential response curve in the form of change. In this control strategy, the control law can be avoided when solving the matrix inversion, and the limit in dealing with constraints, and constraints can easily be translated into constraints, reducing the computational algorithm.)

直线一级倒立摆稳摆控制的MATLAB仿真图(Linear stability of inverted pendulum chart pendulum control of the MATLAB simulation)

无线衰落信道 在无线移动信道中，信号从发射天线经过复杂的传播环境到达接收天线，接收信号为各反射、衍射和散射分量以及信道噪声的复合，因而会产生严重的失真。另外，移动信道中由于移动台运动或信道环境的改变会使信道特性随时间随机变化，接收到的信号由于Doppler效应会产生更为严重的失真。 (OFDM has superior performance when transmitting high rate data in wireless fading channel.)