- phase fading
- (el, tele) dispariţia tensiunii pe fază
English-Romanian technical dictionary. 2013.
English-Romanian technical dictionary. 2013.
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
Fading distribution — In telecommunications, a fading distribution is the probability distribution of the value of signal fading relative to a specified reference level.In the case of phase interference fading, the time distribution of the instantaneous field strength … Wikipedia
Phase-shift keying — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Rayleigh fading — is a statistical model for the effect of a propagation environment on a radio signal, such as that used by wireless devices.Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also… … Wikipedia
Weibull fading — The Weibull fading can be used as a simple statistical model of fading (named after Waloddi Weibull). In wireless communications, the Weibull fading distribution seems to exhibit good fit to experimental fading channel measurements for both… … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
MIMO — This article is about MIMO in wireless communication. For other uses, see MIMO (disambiguation). Understanding of SISO, SIMO, MISO and MIMO (note that the terms input and output refer to the radio channel carrying the signal, not to the devices… … Wikipedia
telecommunications media — Introduction equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation Every… … Universalium
Pulse-position modulation — is a form of signal modulation in which M message bits are encoded by transmitting asingle pulse in one of 2^M possible time shifts. This is repeated every T seconds, such thatthe transmitted bit rate is M/T bits per second. It is primarily… … Wikipedia
List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… … Wikipedia
Bandes marines — La radiocommunication permet aux bateaux d entrer en relation avec les abonnés au téléphone à terre, d échanger, entre bateaux, des messages relatifs à la navigation ou à des affaires sociales, d obtenir des données nautiques concernant les… … Wikipédia en Français