yiulie

this code is an example for kalman filter

单关节机器人滑模控制matlab源程序，非常好的给出了simulink主程序，对于研究变结构控制得学生很有用。(Sliding mode control for single-joint robot matlab source, very good simulink main program is given, the study of variable structure control students useful.)

good file inverter with matlab

这是基于滑膜观测器的永磁同步电机的无速度传感器的的模型，改模型能够切换到滑膜控制的速度估计。(This is a permanent magnet synchronous motor based on synovial observer without speed sensor model, change model can switch to the synovial control speed estimation)

说明：  电力有源滤波器仿真电路图子电路图之三，算法是经典的dq0算法(APF circuit simulation circuit-ter, the algorithm is the classic dq0 Algorithm)

HELP FOR NEED REZA KIANI

M=63 J=(M-1)/2 Wp=0.5*pi Ws=0.6*pi Np=100 Ns=100 weightp=1 weights=100 通带和阻带的加权系数 WpN=linspace(0,Wp,Np) WsN=linspace(Ws,pi-0.05,Ns) Wm=[WpN WsN] p=[ones(1,50),ones(1,50)/2] d=[p,zeros(1,Ns)] W=diag([weightp*ones(1,Np),weights*ones(1,Ns)]) C=cos(Wm*[0:J]) Q=diag(cos(Wm*0.5)) g=(W*Q*C)(W*d) g=g h=(g(J:-1:2)+g(J+1:-1:3))/4 h=[g(J+1)/4 h g(1)*0.5+g(2)/4] h=[h fliplr(h)] W=linspace(0,pi-0.1,512) H=freqz(h,1,W) plot(W/pi,20*log10(abs(H))) (filter design)

插值与拟合，解方程，数据分析，多抽样率信号处理，最终的权值矩阵就是滤波器的系数。( Interpolation and fitting, solution of equations, data analysis, Multirate signal processing, The final weight matrix is ??the filter coefficient.)

可以将matlab中的mat文件转换成txt文件，方便其他的应用程序调用。(Mat files can be converted into a txt file and facilitate the application calls.)

均匀介质二维声波数值模拟，采用cerjan边界条件，有公式及参考文献。带有速度模型以及雷克子波函数，解压后直接运行就可以(The homogeneous medium two-dimensional acoustic wave numerical simulation, boundary conditions of cerjan, and formulas and references. With the velocity model and the the Ricker wave function, and can run directly after decompression)