-
1 опознавательный сигнал для авиации
Military: aircraft recognition signalУниверсальный русско-английский словарь > опознавательный сигнал для авиации
-
2 опознавание
опознавание сущ1. identification2. recognition бортовая аппаратура опознаванияairborne identification equipmentвизуальное опознаваниеvisual identificationгарантировать опознаваниеsecure identificationданные для опознаванияidentification dataиндекс опознаванияidentиндекс опознавания в коде ответчикаsquawk identкод индивидуального опознаванияindividual identification codeкод опознаванияidentification codeманевр для опознаванияidentification manoeuvreопознавание аэродромаaerodrome identificationопознавание воздушного суднаaircraft identificationопознавание в полетеaerial identificationопознавание кода ответчикаsquawk identificationопознавание радиолокационной отметкиradar blip identificationопознавание свой-чужойidentification friend-foeопознавание сигналаsignal determinationопознавание сигналовidentification of signalsпередача кода радиолокационного опознаванияradar identification transferпроцедура опознаванияidentification procedureрадиолокационное опознавание1. radar identification2. beam identification радиоответчик системы опознаванияidentification transponderразворот с целью опознаванияidentifying turnразрешающая способность при опознаванииidentity resolutionраннее опознаваниеearly recognitionсигнал опознаванияidentification signalсистема опознавания воздушного суднаaircraft identification systemслужба опознаванияrecognition service(воздушных судов) средства опознавания1. means of identification2. identification aids -
3 Appleton, Sir Edward Victor
[br]b. 6 September 1892 Bradford, Englandd. 21 April 1965 Edinburgh, Scotland[br]English physicist awarded the Nobel Prize for Physics for his discovery of the ionospheric layer, named after him, which is an efficient reflector of short radio waves, thereby making possible long-distance radio communication.[br]After early ambitions to become a professional cricketer, Appleton went to St John's College, Cambridge, where he studied under J.J.Thompson and Ernest Rutherford. His academic career interrupted by the First World War, he served as a captain in the Royal Engineers, carrying out investigations into the propagation and fading of radio signals. After the war he joined the Cavendish Laboratory, Cambridge, as a demonstrator in 1920, and in 1924 he moved to King's College, London, as Wheatstone Professor of Physics.In the following decade he contributed to developments in valve oscillators (in particular, the "squegging" oscillator, which formed the basis of the first hard-valve time-base) and gained international recognition for research into electromagnetic-wave propagation. His most important contribution was to confirm the existence of a conducting ionospheric layer in the upper atmosphere capable of reflecting radio waves, which had been predicted almost simultaneously by Heaviside and Kennelly in 1902. This he did by persuading the BBC in 1924 to vary the frequency of their Bournemouth transmitter, and he then measured the signal received at Cambridge. By comparing the direct and reflected rays and the daily variation he was able to deduce that the Kennelly- Heaviside (the so-called E-layer) was at a height of about 60 miles (97 km) above the earth and that there was a further layer (the Appleton or F-layer) at about 150 miles (240 km), the latter being an efficient reflector of the shorter radio waves that penetrated the lower layers. During the period 1927–32 and aided by Hartree, he established a magneto-ionic theory to explain the existence of the ionosphere. He was instrumental in obtaining agreement for international co-operation for ionospheric and other measurements in the form of the Second Polar Year (1932–3) and, much later, the International Geophysical Year (1957–8). For all this work, which made it possible to forecast the optimum frequencies for long-distance short-wave communication as a function of the location of transmitter and receiver and of the time of day and year, in 1947 he was awarded the Nobel Prize for Physics.He returned to Cambridge as Jacksonian Professor of Natural Philosophy in 1939, and with M.F. Barnett he investigated the possible use of radio waves for radio-location of aircraft. In 1939 he became Secretary of the Government Department of Scientific and Industrial Research, a post he held for ten years. During the Second World War he contributed to the development of both radar and the atomic bomb, and subsequently served on government committees concerned with the use of atomic energy (which led to the establishment of Harwell) and with scientific staff.[br]Principal Honours and DistinctionsKnighted (KCB 1941, GBE 1946). Nobel Prize for Physics 1947. FRS 1927. Vice- President, American Institute of Electrical Engineers 1932. Royal Society Hughes Medal 1933. Institute of Electrical Engineers Faraday Medal 1946. Vice-Chancellor, Edinburgh University 1947. Institution of Civil Engineers Ewing Medal 1949. Royal Medallist 1950. Institute of Electrical and Electronics Engineers Medal of Honour 1962. President, British Association 1953. President, Radio Industry Council 1955–7. Légion d'honneur. LLD University of St Andrews 1947.Bibliography1925, joint paper with Barnett, Nature 115:333 (reports Appleton's studies of the ionosphere).1928, "Some notes of wireless methods of investigating the electrical structure of the upper atmosphere", Proceedings of the Physical Society 41(Part III):43. 1932, Thermionic Vacuum Tubes and Their Applications (his work on valves).1947, "The investigation and forecasting of ionospheric conditions", Journal of theInstitution of Electrical Engineers 94, Part IIIA: 186 (a review of British work on the exploration of the ionosphere).with J.F.Herd \& R.A.Watson-Watt, British patent no. 235,254 (squegging oscillator).Further ReadingWho Was Who, 1961–70 1972, VI, London: A. \& C.Black (for fuller details of honours). R.Clark, 1971, Sir Edward Appleton, Pergamon (biography).J.Jewkes, D.Sawers \& R.Stillerman, 1958, The Sources of Invention.KFBiographical history of technology > Appleton, Sir Edward Victor
См. также в других словарях:
Signal lamp — training during World War II. A signal lamp (sometimes called an Aldis lamp, named after Arthur C. W. Aldis who invented a widely used design) is a visual signaling device for optical communication (typically using Morse code). Modern signal… … Wikipedia
Signal processing — is an area of systems engineering, electrical engineering and applied mathematics that deals with operations on or analysis of signals, in either discrete or continuous time. Signals of interest can include sound, images, time varying measurement … Wikipedia
Signal Corps (United States Army) — U.S. Army Signal Corps Coat of Arms Active 3 March 1863 – Present Country … Wikipedia
Military aircraft insignia — Royal Saudi Air Force roundel on an EE Lightning fighter Military aircraft insignia are insignia applied to military aircraft to identify the nat … Wikipedia
Speech recognition — For the human linguistic concept, see Speech perception. The display of the Speech Recognition screensaver on a PC, in which the character responds to questions, e.g. Where are you? or statements, e.g. Hello. Speech recognition (also known as… … Wikipedia
International maritime signal flags — The set of signal flags on the bridge of the Liberty ship SS Jeremiah O Brien The system of international maritime signal flags is one system of flag signals representing individual letters of the alphabet in signals to or from ships. It is a… … Wikipedia
Multispectral pattern recognition — Multispectral remote sensing is the collection and analysis of reflected, emitted, or back scattered energy from an object or an area of interest in multiple bands of regions of the electromagnetic spectrum (Jensen, 2005). Subcategories of… … Wikipedia
Royal Observer Corps — Ensign Active 1925–1996 Country … Wikipedia
UH-1N Twin Huey — For an overview of the whole Huey family of aircraft see Bell Huey Infobox Aircraft name= UH 1N Iroquois caption= Marine UH 1Ns lifting from a field outside Baghdad on April 10, 2003. type= Multipurpose utility helicopter manufacturer= Bell… … Wikipedia
American airborne landings in Normandy — This article summarizes airborne operations by the United States during the Normandy Landings. For British airborne operations, see Operation Tonga. Infobox Military Conflict| partof=Operation Overlord, Battle of Normandy caption=Map of Operation … Wikipedia
Defensively Equipped Merchant Ships — Defensively Equipped Merchant Ship (DEMS) was an Admiralty Trade Division program established in June, 1939, to arm 5,500 British merchant ships with an adequate defence against enemy submarines and aircraft. The acronym DEMS was used to describe … Wikipedia
