A voice signal is bandlimited by an anti-aliasing filter to 3.4 kHz before being (b) linearly quantised and converted into a PCM (Pulse Code Modulation) signal. () What is the function and effect of the anti-aliasing filter? (ii) What would be a suitable minimum sampling rate? (iii) What is the minimum PCM bit rate required to achieve a signal to quantisation noise ratio of greater than 55 dB? (iv) Assuming a raised cosine channel is used for transmission of the PCM signal, with a roll-off factor of 0.32, determine the required channel bandwidth.

A voice signal is bandlimited by an anti-aliasing filter to 3.4 kHz before being (b) linearly quantised and converted into a PCM (Pulse Code Modulation) signal. () What is the function and effect of the anti-aliasing filter? (ii) What would be a suitable minimum sampling rate? (iii) What is the minimum PCM bit rate required to achieve a signal to quantisation noise ratio of greater than 55 dB? (iv) Assuming a raised cosine channel is used for transmission of the PCM signal, with a roll-off factor of 0.32, determine the required channel bandwidth.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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