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基于三电平滞环有源电力滤波器（APF）的仿真设计，包括（谐波检测， 电流跟踪环节） Z域(Based on three-level hysteresis active power filter (APF) simulation design, including (harmonic detection, current tracking links) Z domain)

说明：  matlab学习总结汇总，是初学者的首先资料。有很多方法经验的总结。(matlab learning summary summary beginners First. There are many methods experience summary.)

using simulated annealing to find optimum of 3D function

说明：  基于变步长LMS在干扰抵消中的应用，其中key1，2，3为不同变步长的MATLAB程序，而pinyu则是LMS在频域中的应用，(Variable Step Size LMS-based interference cancellation in the application, which key1, 2,3 for different variable step size of MATLAB procedures pinyu is LMS in frequency domain applications,)

说明：  40节点39支路的配电网潮流计算。可计算网损和节点电压。(40 nodes with 39 branch power flow calculation. Calculate the net loss and node voltage.)

run length coding algorithm

绘制误码率与信噪比关系曲线，可以把gmsk、msk等一些调制解调技术的误码率和信噪比的关系曲线画出来(Plotting the error rate curve)

用matlab实现基于正态分布的极大似然估计(Realization of maximum likelihood estimation based on normal distribution)

关于Matlab中常微分方程的数值解法以及其Matlab实验的源代码(Numerical solution of differential equations)

例3：分析占空比为ta的矩形脉冲频谱 T=1 时间窗大小 ta=0.5 占空比 N=256 t=linspace(-T,T,N) ts=2*T/N fs=1/ts (x=zeros(1,N) x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1) y=fft(x,N) figure plot(t,x) title([ 时域信号图 占空比为 ,num2str(ta)]) axis([-T T-0.2 1.2]) xlabel( t /s ) figure subplot(211) f=linspace(-fs/2,fs/2,N) plot(f,abs(fftshift(y))/N) title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ]) xlabel( f /Hz ) )