- beam-swept antenna
- Техника: антенна с качанием луча
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
Würzburg radar — Infobox Radar name = Giant Würzburg radar country = Germany introdate = 1941 number = around 1500 range = up to 70 km (44 mi) diameter = 7.5 m (24 ft 7 in) azimuth = 0 360º elevation = 0 90º precision = ±15 m (49 ft 2½ in)The Würzburg… … Wikipedia
Znamya (space mirror) — The Znamya project was a series of experimental orbital mirrors, designed to beam solar power to Earth by reflecting sunlight. It consisted of two experiments the Znamya 2 experiment, and the failed Znamya 2.5 and the proposed Znamya 3. The… … Wikipedia
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium
Conical scanning — is a system used in early radar units to improve their accuracy, as well as making it easier to steer the antenna properly to point at a target. Conical scanning is similar in concept to the earlier lobe switching concept used on some of the… … Wikipedia
Weather radar — in Norman, Oklahoma with rainshaft … Wikipedia
History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… … Wikipedia
Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… … Universalium
Allen Telescope Array — For other uses, see ATA. Allen Telescope Array ATA The Allen Telescope Array (ATA 42), October 11, 2007 … Wikipedia
New Horizons — For other uses, see New Horizons (disambiguation). New Horizons Operator NASA Major contractors Applied Physics Laboratory (APL) Southwest Research Institute (SwRI) … 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
VHF omnidirectional range — This article is about the radio navigation aid. For other uses, see Vor. D VOR (Doppler VOR) ground station, co located with DME … Wikipedia