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A-The samples è analog signal s(t) = 10 cos (20 pi't) cos (200 pi*t) is sampled at the r rate a- The maximum frequency component present in the analog signal. b-Nyquist rate. per seconds. Determine the following: B-An analog signal having single frequency as 3 kHz is sampled with 5 kHz signa Describe its frequency spectrum. What will be the output if the sampled signals a passed through a low-pass filter having cutoff frequency at 2.5 kHz? Q21 A-Di of Tf the

A-The samples è analog signal s(t) = 10 cos (20 pi't) cos (200 pi*t) is sampled at the r rate a- The maximum frequency component present in the analog signal. b-Nyquist rate. per seconds. Determine the following: B-An analog signal having single frequency as 3 kHz is sampled with 5 kHz signa Describe its frequency spectrum. What will be the output if the sampled signals a passed through a low-pass filter having cutoff frequency at 2.5 kHz? Q21 A-Di of Tf the

Introductory Circuit Analysis (13th Edition)
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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A-The analog signal s(t) = 10 cos (20 pit) cos (200 pi*t) is sampled at the rate of 250 samples per seconds. Determine the following: a- The maximum frequency component present in the analog signal. b-Nyquist rate. B- An analog signal having single frequency as 3 kHz is sampled with 5 kHz signal. Describe its frequency spectrum. What will be the output if the sampled signals are passed through a low-pass filter having cutoff frequency at 2.5 kHz? Q2] A-Discrete samples of an analog signal are uniformly quantized to PCM. If the maximum value of the analog sample is to be represented within 0.05% B- Show that the signal-to-quantization noise ratio in an n-bit binary PCM system, accuracy, find the minimum number of binary digits required per sample. where n is the number of bits uniquely assigned to each of the L quantization levels (L = 2n) is 1.76+6n dB with a sinusoidal analog signal input. 15 Q3] A- A delta modulator system is designed to operate at fi ve times the Nyquist rate for an analog information signal band-limited to 3 kHz. The quantizing step-size is 40 mV. Determine the maximum allowable amplitude of input analog signal for which the delta modulator does not experience slope- overload distortion. B-Compute the Signal-to-quantization noise ratio (So/Nq) for PCM and DM system for the speech signal which has a bandwidth of 3200 Hz. Assume n=2 in a code-word. Comment on the result. Q4] A- Given the binary data sequence 1 1 1 0 0 1 0, outline the transmitted sequence of rectangular pulses using the line coding techniques or digital data signaling formats as (a) unipolar RZ, (b) polar NRZ, (c) polar RZ, (d) Manchester, and (e) bipolar RZ-AMI. B- The binary data 101 10001 is transmitted over a baseband channel. The line- coding waveforms illustrated in Figure 1. Could you explain the line coding for the three waveforms? If yes, Explain?
Transcribed Image Text:A-The analog signal s(t) = 10 cos (20 pit) cos (200 pi*t) is sampled at the rate of 250 samples per seconds. Determine the following: a- The maximum frequency component present in the analog signal. b-Nyquist rate. B- An analog signal having single frequency as 3 kHz is sampled with 5 kHz signal. Describe its frequency spectrum. What will be the output if the sampled signals are passed through a low-pass filter having cutoff frequency at 2.5 kHz? Q2] A-Discrete samples of an analog signal are uniformly quantized to PCM. If the maximum value of the analog sample is to be represented within 0.05% B- Show that the signal-to-quantization noise ratio in an n-bit binary PCM system, accuracy, find the minimum number of binary digits required per sample. where n is the number of bits uniquely assigned to each of the L quantization levels (L = 2n) is 1.76+6n dB with a sinusoidal analog signal input. 15 Q3] A- A delta modulator system is designed to operate at fi ve times the Nyquist rate for an analog information signal band-limited to 3 kHz. The quantizing step-size is 40 mV. Determine the maximum allowable amplitude of input analog signal for which the delta modulator does not experience slope- overload distortion. B-Compute the Signal-to-quantization noise ratio (So/Nq) for PCM and DM system for the speech signal which has a bandwidth of 3200 Hz. Assume n=2 in a code-word. Comment on the result. Q4] A- Given the binary data sequence 1 1 1 0 0 1 0, outline the transmitted sequence of rectangular pulses using the line coding techniques or digital data signaling formats as (a) unipolar RZ, (b) polar NRZ, (c) polar RZ, (d) Manchester, and (e) bipolar RZ-AMI. B- The binary data 101 10001 is transmitted over a baseband channel. The line- coding waveforms illustrated in Figure 1. Could you explain the line coding for the three waveforms? If yes, Explain?
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