Solucionario Sistemas De - Comunicaciones Electronicas 4ta Edicion Wayne Tomasi34

Solution:

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

1.1 Explain the difference between electronic communication and communication systems.

Solution:

The Fourier transform of a rectangular pulse is given by:

F(ω) = A * τ * sinc(ωτ/2)

Electronic communication refers to the transmission, reception, and processing of information through electronic means, such as radio waves, microwaves, or optical fibers. Communication systems, on the other hand, refer to the overall system that enables communication, including the transmitter, channel, receiver, and any other components that facilitate the communication process. Solution: 4

where α is the attenuation constant and β is the phase constant.

Solution:

where X(f,T) is the Fourier transform of the signal over a finite interval T. Solution: The Fourier transform of a rectangular pulse

Solution:

3.1 An AM signal has a carrier frequency of 100 kHz and a modulating signal of 5 kHz. Calculate the sideband frequencies.

f_USB = f_c + f_m = 100 kHz + 5 kHz = 105 kHz f_LSB = f_c - f_m = 100 kHz - 5 kHz = 95 kHz Solution: where X(f,T) is the Fourier transform of

S(f) = lim (T → ∞) [1/T * EX(f,T)]

This draft report provides solutions to selected problems in the fourth edition of "Sistemas de Comunicaciones Electrónicas" by Wayne Tomasi. The solutions cover various topics in electronic communication systems, including signals and systems, amplitude modulation, angle modulation, digital modulation, and transmission lines and waveguides.