- space-frequency diversity
- пространственно-частотное разнесение
English-Russian electronics dictionary .
space-frequency diversity
Смотреть что такое "space-frequency diversity" в других словарях:
Diversity scheme — Terrestrial microwave radio system with two antenna arrays configured for space diversity In telecommunications, a diversity scheme refers to a method for improving the reliability of a message signal by using two or more communication channels… … Wikipedia
Diversity combining — is the technique applied to combine the multiple received signals of a diversity reception device into a single improved signal. Contents 1 Various techniques 2 Switched combining two way radio example 2.1 How signals are evaluated … Wikipedia
Orthogonal frequency-division multiple access — Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM · SDM Polarization multiplexing Spatial multiplexing (MIMO) … Wikipedia
United States Space Surveillance Network — Space surveillance is a critical part of United States Strategic Command s (USSTRATCOM) mission and involves detecting, tracking, cataloging and identifying man made objects orbiting Earth, i.e. active/inactive satellites, spent rocket bodies, or … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Cooperative diversity — is a cooperative multiple antenna technique for improving or maximising total network channel capacities for any given set of bandwidths which exploits user diversity by decoding the combined signal of the relayed signal and the direct signal in… … Wikipedia
Transmit diversity — is radio communication using signals that originate from two or more independent sources that have been modulated with identical information bearing signals and that may vary in their transmission characteristics at any given instant. It can help … 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
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
Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… … Wikipedia
Harold Beverage — Infobox Scientist name = Harold Beverage caption = birth date = 14 October 1893 birth place = North Haven, ME death date = 27 January 1993 death place = Port Jefferson, NY residence = Stony Brook, NY nationality = American field = Electrical… … Wikipedia
