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time-varying communication channel

См. также в других словарях:

  • Time diversity — is used in digital communication systems to combat that the transmissions channel may suffer from error bursts due to time varying channel conditions. The error bursts may be caused by fading in combination with a moving receiver, transmitter or… …   Wikipedia

  • Channel (communications) — Old telephone wires are a challenging communications channel for modern digital communications. In telecommunications and computer networking, a communication channel, or channel, refers either to a physical transmission medium such as a wire, or …   Wikipedia

  • communication — communicational, adj. /keuh myooh ni kay sheuhn/, n. 1. the act or process of communicating; fact of being communicated. 2. the imparting or interchange of thoughts, opinions, or information by speech, writing, or signs. 3. something imparted,… …   Universalium

  • Time in physics — In physics, the treatment of time is a central issue. It has been treated as a question of geometry. One can measure time and treat it as a geometrical dimension, such as length, and perform mathematical operations on it. It is a scalar quantity… …   Wikipedia

  • Coherence time (communications systems) — In communications systems, a communication channel may change with time. Coherence time is the time duration over which the channel impulse response is considered to be not varying. Such channel variation is much more significant in wireless… …   Wikipedia

  • military communication — Introduction       the transmission of information from reconnaissance and other units in contact with the enemy and the means for exercising command by the transmission of orders and instructions of commanders to their subordinates. As such, it… …   Universalium

  • Ion channel — Not to be confused with: Ion Television or Ion implantation. Schematic diagram of an ion channel. 1 channel domains (typically four per channel), 2 outer vestibule, 3 selectivity filter, 4 diameter of selectivity filter, 5 phosphorylation site, 6 …   Wikipedia

  • Adaptive equalizer — An adaptive equalizer is a filter that adaptively updates its coefficients in order to track a time varying communication channel. It is frequently used with coherent modulations such as phase shift keying in wireless communications, mitigating… …   Wikipedia

  • Fading — This article is about signal loss in telecommunications. For the poetry book, see Fading (book). For other uses, see Fade (disambiguation). Frequency selective time varying fading causes a cloudy pattern to appear on a spectrogram. Time is shown… …   Wikipedia

  • Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

  • Statistical multiplexing — is a type of communication link sharing, very similar to Dynamic bandwidth allocation (DBA). In statistical multiplexing, a communication channel is divided into an arbitrary number of variable bit rate digital channels or data streams. The link… …   Wikipedia

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