Question :
In the mathematical model for the quantization error e_q (n), to carry out the analysis, what are the assumptions made about the statistical properties of e_q (n)?
1. The error e_q (n) is uniformly distributed over the range — ∆ /2 < e_q (n) < ∆ /2.
2. The error sequence is a stationary white noise sequence. In other words, the error e_q (m) and the error e_q (n) for m≠n are uncorrelated.
3. The error sequence {e_q (n)} is uncorrelated with the signal sequence x(n).
4. The signal sequence x(n) is zero mean and stationary.
1. 1, 2 & 3
2. 1,2,3,4
3. 1, 3
4. 2, 3, 4
Answer :
2 - 1,2,3,4
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