Determine expression of signal-to-quantization noise ratio

Question

Assignment:

1. Evaluate the value of the signal-to-quantization noise ratio for a signal with uniform probability density function in the interval [-2, 2) V, using an uniform quantizer with 256 levels in the range (-1, 1) V.

2. Derive the expression of the signal-to-quantization noise ratio,(A_q)dB, as a function of b for the saw-tooth signal shown in figure

a(t) = Σ^+∞_k=-∞  a_maxsaw (t - k2T/T)

where saw(t) = t , -1 ≤ t ≤ 1 and 0 otherwise.