Telecommunication 6 min read
Bit mapping
In the next step in the digitization process, the output of the quantizer is mapped into a binary sequence. An encoding table…
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Doppler effect
When the source of a wave moves relative to an observer, the observer notices a change in the frequency of…
Telecommunication 4 min read
Wave
Wave, propagation of disturbances from place to place in a regular and organized way. Most familiar are surface waves that travel on water, but sound, light, and…
Telecommunication 3 min read
Continuous communication and the problem of bandwidth
Continuous communication, unlike discrete communication, deals with signals that have potentially an infinite number of different values. Continuous communication is closely related…
Telecommunication 3 min read
Sampling theorem
Discrete, noisy communication and the problem of error It is assumed unrealistically that all messages are transmitted without error. In the…
Telecommunication 5 min read
Plane Waves
A discussion of sound waves and their propagation can begin with an examination of a plane wave of a single frequency…
Telecommunication 3 min read
Receiver
Receiver, in electronics, any of various devices that accept signals, such as radio waves, and convert them (frequently with amplification) into…
Telecommunication 6 min read
Bandwidth
Bandwidth, in electronics, the range of frequencies occupied by a modulated radio-frequency signal, usually given in hertz (cycles per second) or as a…
Telecommunication 3 min read
Binary form
Binary form, in music, the structural pattern of many songs and instrumental pieces, primarily from the 17th to the 19th century,…
Telecommunication 6 min read
Telecommunications network
Telecommunications network, electronic system of links and switches, and the controls that govern their operation, that allows for data transfer…
Telecommunication 2 min read
Broadband technology
Broadband technology, Telecommunications devices, lines, or technologies that allow communication over a wide band of frequencies, and especially over a…
Telecommunication 3 min read
Data transmission
Data transmission, Sending and receiving data via cables (e.g., telephone lines or fibre optics) or wireless relay systems. Because ordinary telephone circuits pass…