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Two signals m1(t) and m2(t), both band-limited to 5000 Hz, are to be transmitted simultaneously over a channel by the multiplexing scheme shown below. The signal at point b is the multiplexed signal, which then modulates a carrier. The modulated signal at point c is transmitted over a channel. M1(f) m¡(t) b -5000 To 5000 Σ M2(f) m2(t) a 2 cos 40000TTI -5000 5000 f→ 2 cos 30000Tt (a) Sketch signal spectra at points a, b, and c with frequencies clearly marked. (b) What are the bandwidth of the signals at points a, b, and c, respectively? (). Plot a receiver diagram to recover signals mi(t) and m2(t) from the modulated signal at point c.

Two signals m1(t) and m2(t), both band-limited to 5000 Hz, are to be transmitted simultaneously over a channel by the multiplexing scheme shown below. The signal at point b is the multiplexed signal, which then modulates a carrier. The modulated signal at point c is transmitted over a channel. M1(f) m¡(t) b -5000 To 5000 Σ M2(f) m2(t) a 2 cos 40000TTI -5000 5000 f→ 2 cos 30000Tt (a) Sketch signal spectra at points a, b, and c with frequencies clearly marked. (b) What are the bandwidth of the signals at points a, b, and c, respectively? (). Plot a receiver diagram to recover signals mi(t) and m2(t) from the modulated signal at point c.

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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Two signals m(t) and m2(t), both band-limited to 5000 Hz, are to be transmitted simultaneously over a channel by the multiplexing scheme shown below. The signal at point b is the multiplexed signal, which then modulates a carrier. The modulated signal at point c is transmitted over a channel. M¡(f) m¡(t) b -5000 To 5000 f → Σ M2(f)\ m2(t) а 2 cos 40000TI -5000 5000 2 cos 30000nt (a) Sketch signal spectra at points a, b, and c with frequencies clearly marked. (b) What are the bandwidth of the signals at points a, b, and c, respectively? (c) Plot a receiver diagram to recover signals m1(t) and m2(t) from the modulated signal at point c.
Transcribed Image Text:Two signals m(t) and m2(t), both band-limited to 5000 Hz, are to be transmitted simultaneously over a channel by the multiplexing scheme shown below. The signal at point b is the multiplexed signal, which then modulates a carrier. The modulated signal at point c is transmitted over a channel. M¡(f) m¡(t) b -5000 To 5000 f → Σ M2(f)\ m2(t) а 2 cos 40000TI -5000 5000 2 cos 30000nt (a) Sketch signal spectra at points a, b, and c with frequencies clearly marked. (b) What are the bandwidth of the signals at points a, b, and c, respectively? (c) Plot a receiver diagram to recover signals m1(t) and m2(t) from the modulated signal at point c.
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