Solucionario Sistemas De Comunicaciones Electronicas 4ta Edicion Wayne Tomasi34 Apr 2026

4.1 An FM signal has a carrier frequency of 100 MHz and a modulating signal of 10 kHz. Calculate the frequency deviation.

Solution:

The frequency deviation is given by:

5.1 Explain the difference between coherent and noncoherent digital modulation. where k_f is the frequency deviation constant and

The book "Sistemas de Comunicaciones Electrónicas" (Electronic Communication Systems) by Wayne Tomasi is a widely used textbook in the field of electronic communications. The fourth edition of this book provides a comprehensive overview of the principles and applications of electronic communication systems. This report provides a draft solution manual for the problems presented in the fourth edition of the book.

where k_f is the frequency deviation constant and A_m is the amplitude of the modulating signal.

2.2 Determine the power spectral density of a random signal. where k_f is the frequency deviation constant and

Solution:

Δf = k_f * A_m

The Fourier transform of a rectangular pulse is given by: where k_f is the frequency deviation constant and

1.1 Explain the difference between electronic communication and communication systems.

f_USB = f_c + f_m = 100 kHz + 5 kHz = 105 kHz f_LSB = f_c - f_m = 100 kHz - 5 kHz = 95 kHz