What is the convolution x(n) of the signals x1(n)={1,-2,1} and x2(n)={1,1,1,1,1,1}?
A. {1,1,0,0,0,0,1,1}
B. {-1,-1,0,0,0,0,-1,-1}
C. {-1,1,0,0,0,0,1,-1}
D. {1,-1,0,0,0,0,-1,1}
Answer:A
What is the convolution x(n) of the signals x1(n)={1,-2,1} and x2(n)={1,1,1,1,1,1}?
A. {1,1,0,0,0,0,1,1} B. {-1,-1,0,0,0,0,-1,-1} C. {-1,1,0,0,0,0,1,-1} D. {1,-1,0,0,0,0,-1,1}
Explanation: 4. If Z{x1(n)}=X1(z) and Z{x2(n)}=X2(z) then what is the z-transform of correlation between the two signals?