Milstein, Laurence B. Department of Electrical Engineering and Computer Science, University of California, San Diego, California.
- Analog modulation
- Digital modulation
- Communication theory
- Multiple-access techniques
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That branch of electrical engineering dealing with the transmission and reception of information. Information can be transmitted over many different types of pathways, such as satellite channels, underwater acoustic channels, telephone cables, and fiber-optic links. Characteristically, any communications link is noisy. The receiver never receives the information-bearing waveform as it was originally transmitted. Rather, what is received is, at best, the sum of what was transmitted and noise. In reality, what is more likely to be received is a distorted version of what was transmitted, with noise and perhaps interference. Consequently, the design and implementation of a communications link are dependent upon statistical signal-processing techniques in order to provide the most efficient extraction of the desired information from the received waveform. See also: Communications cable; Communications satellite; Distortion (electronic circuits); Electrical interference; Electrical noise; Microwave; Optical communications; Radio-wave propagation; Telephone service; Transmission lines; Underwater sound; Waveguide
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