second signal system
51E! (Canadian TV system) — For the Bell Media owned Canadian specialty channel previously known as Star! , see E! (Canadian TV channel). E! Entertainment Television Type Defunct Broadcast t …
52warning system — ▪ military technology Introduction in military science, any method used to detect the situation or intention of an enemy so that warning can be given. Because military tactics from time immemorial have stressed the value of surprise… …
53Dolby noise reduction system — Dolby NR is the name given to a series of noise reduction systems developed by Dolby Laboratories for use in analogue magnetic tape recording. The first was Dolby A professional noise reduction for recording studios in 1966, but the best known is …
54Dolby noise-reduction system — A Dolby 361 A type noise reduction module Dolby NR is the name given to a series of noise reduction systems developed by Dolby Laboratories for use in analog magnetic tape recording. The first was Dolby A, a professional broadband noise reduction …
55Emergency Broadcast System — For the record label, see Emergency Broadcast System Records. For the multimedia group, see Emergency Broadcast Network. The Emergency Broadcast System (EBS) was an emergency warning system in the United States, used from 1963 to 1997, when it… …
56Global navigation satellite system — (GNSS) is the standard generic term for satellite navigation systems that provide autonomous geo spatial positioning with global coverage. A GNSS allows small electronic receivers to determine their location (longitude, latitude, and altitude) to …
57National Transportation Communications for Intelligent Transportation System Protocol — The National Transportation Communications for Intelligent Transportation System Protocol (NTCIP) is a family of standards designed to achieve interoperability and interchangeability between computers and electronic traffic control equipment from …
58Global positioning system — Pour les articles homonymes, voir GPS (homonymie). Le Global Positioning System plus connu par son sigle GPS, que l on peut traduire en français par « système de positionnement mondial » ou encore (en respectant le sigle) Géo… …
59Continuous Tone-Coded Squelch System — In telecommunications, Continuous Tone Coded Squelch System or CTCSS is a circuit that is used to reduce the annoyance of listening to other users on a shared two way radio communications channel. It is sometimes called tone squelch. Where more… …
60Normalized frequency (digital signal processing) — In digital signal processing, the normalized frequency of a periodic signal is its frequency expressed in units of cycles (or radians) per sample, rather than in the usual SI units of hertz (cycles per second). The cycles per sample frequency is… …
