Helical scan — is a method of recording high bandwidth signals onto magnetic tape. It is used in video tape recorders, video cassette recorders, digital audio tape recorders, and some computer tape drives. Comparison to linear tape recording In a fixed head… … Wikipedia
Blip-to-scan ratio — In radar systems, the blip to scan ratio, or blip/scan, is the ratio of the number of times a target appears on a radar display to the number of times it could have been seen. [ [http://www.answers.com/topic/blip scan ratio?cat=technology blip… … Wikipedia
Beta Scan Scope — Ein Radarschirm ist ein populärer Begriff für alle Typen von Radarbildschirmen (Radarindikatoren) und zeigt die Daten an, die ein Radargerät auffasst. Es soll eine möglichst einfach zu erfassende und möglichst maßstabsgetreue grafische… … Deutsch Wikipedia
Palmer scan — A radar technique in which conical scan is superimposed on some other form of scanning. For example, in Palmer sector, beam oscillates to and fro over azimuth sector while continuously making small angel conical scan … Aviation dictionary
helical scan — In radar scanning, varying the azimuth and elevation of the antenna continuously to generate a spiral pattern of the beam. This scan pattern is used in fire control and GCI (ground controlled interception) radars. Also called spiral scanning … Aviation dictionary
spiral scan — A radar scan pattern in which the beam is rotated out from and back to the centerline in a circular motion in the vertical plane. This pattern is applicable to target acquisition radars, providing range, relative azimuth, and elevation data … Aviation dictionary
track-while-scan — The ability of radar to track a target while searching for other targets. This is done by having two unidirectional sector scans scanning simultaneously in two planes. One of these is usually vertical and the other horizontal. This allows targets … Aviation dictionary
radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… … Universalium
Geo Warping — This article explains a technology called Geo Warping in the context of real time visualization of geo referenced radar video data. Geo Warping allows displaying radar video consistently with any geographical projection and thus avoids any… … Wikipedia
Radar display — Modern radar systems typically use some sort of raster scan display to produce a map like image. In the past, notably during the early days of radar development, such displays were difficult to produce for a number of reasons. Several different… … Wikipedia
AN/FPS-16 — manned space program and the U.S. Air Force. The accuracy of Radar Set AN/FPS 16 is such that the position data obtained from point source targets has azimuth and elevation angular errors of less than 0.1 milliradian (approximately 0.006 degree)… … Wikipedia