unsolved function
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>> n=-3:0.13; >> x=stepseq(0,-3,3); ??? Undefined function or method 'stepseq' for input arguments of type 'double'.
>> n=-5:5; >> x=impseq(-3,-5,5); ??? Undefined function or method 'impseq' for input arguments of type 'double'.
please assist on the above unsolved functions
Giannis
0 comentarios
Respuestas (3)
Charles Obare
el 5 de Mzo. de 2021
Editada: Walter Roberson
el 5 de Mzo. de 2021
save this from the text.
function [x,n] = stepseq(n0,n1,n2)
% Generates x(n) = u(n-n0); n1 <= n,n0 <= n2
% ------------------------------------------
% [x,n] = stepseq(n0,n1,n2)
%
if ((n0 < n1) | (n0 > n2) | (n1 > n2))
error('arguments must satisfy n1 <= n0 <= n2')
end
n = [n1:n2];
%x = [zeros(1,(n0-n1)), ones(1,(n2-n0+1))];
x = [(n-n0) >= 0];
_______________________________________________________________________Next file
function [x,n] = impseq(n0,n1,n2)
% Generates x(n) = delta(n-n0); n1 <= n,n0 <= n2
% ----------------------------------------------
% [x,n] = impseq(n0,n1,n2)
%
if ((n0 < n1) | (n0 > n2) | (n1 > n2))
error('arguments must satisfy n1 <= n0 <= n2')
end
n = [n1:n2];
%x = [zeros(1,(n0-n1)), 1, zeros(1,(n2-n0))];
x = [(n-n0) == 0];
0 comentarios
Paulo Silva
el 1 de Ag. de 2011
Both of those functions aren't avaiable from MATLAB instalation files, they are from some book or files, create them first or download them and put them in the current path or some other path that MATLAB knows about.
You can get those functions and the rest of them from: Digital Signal Processing Using MATLAB by John Proakis
0 comentarios
Sean de Wolski
el 1 de Ag. de 2011
I've never heard of those functions before, nor are they on the file exchange.
3 comentarios
Sean de Wolski
el 1 de Ag. de 2011
Ahh
The G00g13 wins again.. Apparently they are on the FEX as well.
Paulo Silva
el 1 de Ag. de 2011
I remembered the functions from one class I had last year, that book and files were great to understand signal processing.
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