Signal-spectrum-analysis-and-MATLAB

利用MATLAB软件实现偏最小二乘回归方程模型(use the soft of the MATLAB to calculate the partial least-squares regression )

Steganography LSB by 3bits find and hide information in a image

说明：  ex4_2 用MATLAB作巴特沃斯低通滤波器设计 ex4_3 用MATLAB作切比雪夫-1型低通滤波器设计 ex4_4 切比雪夫-2型低通滤波器设计 ex4_5 椭圆型低通滤波器设计 ex4_6 传递函数的模拟滤波器数字化 ex4_7 脉冲不变法简单实例 ex4_8 脉冲不变法巴特沃思低通滤波器设计 (ex4_2 using MATLAB for Butterworth low-pass filter design using MATLAB for ex4_3 Chebyshev-1-type low-pass filter design ex4_4 type-2 Chebyshev low-pass filter design ex4_5 elliptic low-pass filter design ex4_6 transfer function digitization of analog filters ex4_7 the same method is simple example of pulse-pulse unchanged law ex4_8 Butterworth low-pass filter design)

golden section method

基于雷达信号处理的仿真实现实现，是一个和前任研究不同的代码。(Radar signal processing based on the implementation of the simulation implementation, is a former research and different codes.)

TRANSPOSITION_CIPHER.ZIP

四连杆机构的运动学仿真。输出四连杆机构各杆的位移、角度、加速度、角加速度等信息。(Kinematics simulation of the four-bar linkage. The output of each of the rod of the four-link mechanism displacement, angle, acceleration, angular acceleration, and other information.)

As we know, the energy needed for sensors should be electrical. So the rst step before start to work is to convert environmental energy to electrical one. Inside the node there are dierent components for sensing the area, collecting data and processing the data. So the main dierent part of this kind of nodes, in compare of WSN nodes, is the power part. Once the stored energy reach to a certain amount, the power supply for micro controller and transceiver will start to work. They will continue to work until they have energy, as soon as the energy nish, they stops and energy storage device start to work to save energy again. The other fact should be consider about EH-WSN node is that the available energy can change in dierent nodes. So every node has its own harvesting rate.

说明：  利用matlab实现流体力学中经典算例：二维粘性方腔不可压流动的计算。(Matlab is used to calculate the incompressible flow in a two-dimensional viscous square cavity.)

binary to decimal converter can turn bit pattern into decimal value