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GATE ECE 2007 | Question-83

Statement for Linked Answer Questions 82 & 83:
An input to a $6$-level quantizer has the probability density function $f(x)$ as shown in the figure. Decision boundaries of the quantizer are chosen so as to maximize the entropy of the quantizer output. It is given that $3$ consecutive decision boundaries are $\text{‘-1’, ‘0’}$ and $\text{‘1’.}$


Assuming that the reconstruction levels of the quantizer are the mid-points of the decision boundaries, the ratio of signal power to quantization noise power is

  1. $\frac{152}{9}$
  2. $\frac{64}{3}$
  3. $\frac{76}{3}$
  4. $28$
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