2.2 Determine the power spectral density of a random signal.
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. including signals and systems
Coherent digital modulation uses a reference carrier signal at the receiver to detect the transmitted signal, while noncoherent digital modulation does not use a reference carrier signal. including signals and systems
5.1 Explain the difference between coherent and noncoherent digital modulation. including signals and systems