Bandwidth and noise - CloudRF

A audio signal of bandwidth 4 khz is sampled at a rate 25% above Nyquist rate and quantized. Quantification error not to exceed 0.1% of signal amplitude. The quantized sample are coded and transmitted using a 4-ary pulse. Determine a. The BPR N and no of bits represented by one line pulse (r). b. The min transmission bandwidth required to transmit the data with ideal zero ISI pulses using ASK with d=0.

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