互相关求时延差

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 ) )

backpropagation for Neural network

these are to set of files. first one is used for baro and inertial integration and the erro of inertial. the second one is used for sim of reentry by use of not only its dynamics but also with EKF observants to control reentry

变步长LMS算法性能比较与仿真.希望有帮助(Variable step size LMS algorithm performance compared with the simulation. Hope that helps)

MATLAB神经网络30个案例分析程序和数据(MATLAB neural network analysis of 30 cases the programs and data)

compensation of dead time effect of the inverter dead time effect causes the impact of the control performance of the INVERTER system, and pointed out that the dead time compensation, the key lies in the current phase of the acquisition, in order to overcome the practical zero of the current ambiguity of the system is proposed based on the two-phase stationary coordinate system under the feedforward dead-time compensation method. by the offset voltage of the three-phase output current cycle Fourier transform is found only compensation 1, 5, 7 harmonic components to eliminate the dead time effect. simulation and experimental results verify the correctness and feasibility of this approach.

BP神经网络客流量预测算法的研究，用于基于matlab平台对铁路、公路的客流量进行预测(BP neural network traffic prediction algorithm, based on the the matlab platform on the railway, highway traffic forecast)

说明：  对海浪数据处理得到海浪谱。可以模拟不同风速产生的海浪谱，并得到一维海面分布。(Propose the wave hight data and spectrum analysis.Wave spectrum generated by different wind speeds can be simulated and one-dimensional sea surface distribution can be obtained.)

说明：  动态烟花代码，适合小白学习。。。。。。。。。。。(Little white dynamic fireworks code, suitable for learning)

有关控制领域PID算法，实现简单的界面编程有待进一步完善(PID algorithm for the control of the area to achieve a simple interface for programming to be further improved)