FIR Filter 10th order with a for loop

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Abd Alsalam Al Saell
Abd Alsalam Al Saell am 2 Mai 2021
i'm trying to filter a signal with a 10th order differential equation and for loop, with the following code, but i'm keep getting this error
Array indices must be positive integers or logical values.
Error in EOG (line 106)
new_data = data_h(k:-1:k-10);
can you please help me fix it , and tell me if it's a code or just syntax error?
TimeStamp = 0:T:59.99;
N = 10;
Fg = 1;
Wn = Fg/2;
aTP = fir1(N,Wn);
for k = 1:numel(data_h)
new_data = data_h(k:-1:k-10);
Y(k) = aTP.*new_data;

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David Fletcher
David Fletcher am 2 Mai 2021
On the first iteration of your loop the indexing expression will expand to
new_data = data_h([1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9])
As the error says: you can't index with zero or negative values
  2 Kommentare
David Fletcher
David Fletcher am 3 Mai 2021
In this case the error is that you are trying to cram a vector into a single column. If you want to save the data from each iteration use:
Y(k,:) = aTP.*new_data';

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