Hi all,

Can someone please tell me how I can interpolate this graph on Matlab:

T = 1/200; % T is the sampling period in seconds. Since we will sample @ 200Hz, therefore T=1/f
nmin = ceil(tmin / T);
nmax = floor(tmax / T);
n = nmin:nmax; % n is the sampling number


% plot 10sin(660*pi*t) samples
wave_samples = 10*sin(660*pi*n*T);
plot(n*T,wave_samples)
hold on % do not overwrite on graph, just add add on it


Thanks in advance.

 

tmin?
tmax?

 

Hi sheii01,

This is part or an aliasing code. I am first generating a sine wave. The wave is then being sampled at 200Hz.
Now is want to use interpolation to generate the new wave with the aliasing effect.

I am following the tutorial in the kink below:

http://blogs.mathworks.com/steve/2010/03/03/aliasing-and-a-sampled-cosine-signal/