GUI_3

在核空间中进行pca，简称kpca的源码(kernel principle component analysis )

this a useful program for students in electrical engineering and it it is about Luenberger observer for speed-sensorless DC motor drive

例4：在sinc(t)信号中叠加噪声，分析对应频谱 fs=100 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=2 时间窗大小 ( x=x+0.1*randn(1,N) x=awgn(x,-10, measured ) figure plot(t,x) title( 时域信号图 ) xlabel( t /s ) y=fft(x,N) figure if mod(N,2)~=0 N=N-1 end f=linspace(0,fs/2,N/2) plot(f,abs(y(1:N/2))*2/N) title( 叠加噪声的sinc(t)信号频谱 ) xlabel( f /Hz ) figure y0=y(1:N/2) P=y0.*conj(y0)/N P=10*log10(P) plot(f,P) title( 功率谱 ) xlabel( f /Hz ) )

基于Matlab-Simulink所搭建的双路单向PCM语音传输系统模型(Dual PCM-way voice transmission system Matlab-Simulink models are built based on)

三电平逆变器SVPWM仿真模型。包含LCL滤波器，模块功能清晰。(Three- level inverter SVPWM simulation model. Contains LCL filter, module function is clear.)

潮流计算牛拉法和PQ分解法有详细解析，电力系统的基本潮流都有解析，纯手工(Flow Calculation cattle Rafah and PQ decomposition method has a detailed analysis)

说明：  改进的差分粒子群算法，并用于求函数极值，程序中分别于DE PSO 蛙跳进行对比，结果显示，改进的差分粒子群更好(The improved Differential Particle Swarm Optimization (DPSO) algorithm is used to find the function extremum. The program is compared with DE PSO frog jump, and the results show that the improved DPSO is better.)

这是亮度人脸检测的matlanb 源代码实现，很好(This is the brightness of the Face Detection matlanb source code to achieve good)

convex optimizationconvex optimization algo new mit dimtri bertskas lession 2

maltab program for formation of bus impedance and admittance matrices