Hi, I'm having problems finding something out something simple.
If I'm given this: -
[b,a] = cheby1(8,1,0.4); y = filter(b,a,x);
then what do the three digits in the brackets after 'cheby1' mean?
Also what does b, a and x mean?
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Chebyshev Type 1 filter design
1-D digital filter
This is clearly explained in documentation.
x is the input signal, also see the doc