4.2-8 Twosignals m¡ (1) and m2(t), both band-limited to 5000 Hz, aretobetransmitted simultaneouslyover a channel by the multiplexing scheme shown in Fig. P4.2-8. The signal at point b is themultiplexed signal, which now modulates a carrier of frequency 20,000 Hz. The modulatedsignal at point c is transmitted over a channel.(a) Sketch signal spectra at points a, b, and c.(b) What must be the bandwidth of the channel?(c) Design a receiver to recover signals m|(t) and m2(t) from the modulated signal atpoint c.--5000Ta5000 -Σ2 cos 40,000rt-5000To5000 f+2 cos 20,000rt:

Answered: Image /qna-images/answer/b3017ca7-7ed6-4602-bb5d-4bd6f88bafbf.jpg

Two signals m1 (1) and m2(1), both band-limited to 5000 Hz, aretobetransmitted simultaneously over a channel by the multiplexing scheme shown in Fig. P4.2-8. The signal at point b is the multiplexed signal, which now modulates a carrier of frequency 20,000 Hz. The modulated signal at point e is transmitted over a channel. (a) Sketch signal spectra at points a, b, and c. (b) What must be the bandwidth of the channel? (c) Design a receiver to recover signals m|(1) and m2(t) from the modulated signal at point c. M)| --S000 To 5000 → Σ) m;(1) 2 cos 40,000nt -5000 To 5000 f- 2 cos 20,000rt

Two signals m1 (1) and m2(1), both band-limited to 5000 Hz, aretobetransmitted simultaneously over a channel by the multiplexing scheme shown in Fig. P4.2-8. The signal at point b is the multiplexed signal, which now modulates a carrier of frequency 20,000 Hz. The modulated signal at point e is transmitted over a channel. (a) Sketch signal spectra at points a, b, and c. (b) What must be the bandwidth of the channel? (c) Design a receiver to recover signals m|(1) and m2(t) from the modulated signal at point c. M)| --S000 To 5000 → Σ) m;(1) 2 cos 40,000nt -5000 To 5000 f- 2 cos 20,000rt

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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