The sign functionextracts the sign of a real valued signal, i.e., (a) Let s[n] = s 1
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(a) Let s[n] = s1[n] + s2[n], x[n] = n, where s1[n] is causal and s2[n] anti-causal; find their Z-transforms and indicate the corresponding ROCs.
(b) Determine the Z-transform S(z).
Transcribed Image Text:
-1 x[n] < 0 s[n] = sign(x[n]) = {0 x[n] = 0 x[n] > 0
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a We have sn un u n the Ztransform of s 1 n un is provided that z 1 1 thus z 1 i...View the full answer
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