sample.m

这是一个 York大学开发的FDTD代码。很好用的工具

%Sampling a sine wave

%generate original sine wave
%N0=200
%f0=1
t0=linspace(0,Tp,N0);
y0=sin(2*pi*f0*t0);
d0=[t0;y0]';

%generate sampled data
fs=rate*f0
Ts=1/fs
NS=floor(fs*Tp)
ts=linspace(0,Ts*(NS-1),NS);
ys=sin(2*pi*f0*ts);
ds=[ts;ys]';

plot(t0,y0,'-',ts,ys,'o')
title('Sampled sine wave')
xlabel('Time')

disp('Alter rate and re-run')