I am using the RESAMPLE function on my signal with Signal Processing Toolbox 6.7 (R2007a) and I see that the resampled signal suffers from edge effects, i.e. oscillations at the edges. This can be seen from the following example.
fs1 = 10; % Original sampling frequency in Hz
t1 = 0:1/fs1:1; % Time vector
x = t1 + 100; % Define a linear sequence
y = resample(x,3,2); % Now resample it
t2 = (0:(length(y)-1))*2/(3*fs1); % New time vector
plot(t1,x,'*',t2,y,'o',(-0.5:0.01:1.5),(-0.5:0.01:1.5)+100,':')legend('original','resampled'); xlabel('Time')
I know that this problem could be prevented if I were able to specify initial and final conditions for my signal in the RESAMPLE function. However, the function does not allow that. I want to compensate for this and obtain correct results.
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