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conical scanning antenna

См. также в других словарях:

  • 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

  • conical scanning — A radar scan pattern in which a point on the radar beam describes a circle at the base of a cone. This type of scan pattern provides both elevation and azimuth data. The radiation pattern of the antenna is made slightly lopsided, and the antenna… …   Aviation dictionary

  • scanning — In radar, the motion of the radar antenna assembly when searching for targets. Scanning usually follows a systematic pattern involving one or more of the following: i. In horizontal scanning (or search lighting), the antenna is continuously… …   Aviation dictionary

  • Monopulse radar — is an adaptation of conical scanning radar which sends additional information in the radar signal in order to avoid problems caused by rapid changes in signal strength. The system also makes jamming more difficult. Most radars designed since the… …   Wikipedia

  • Lobe switching — is a method used on early radar sets to improve tracking accuracy. It used two slightly separated antenna elements to send the beam slightly to either side of the midline of the antenna, switching between the two to find which one gave the… …   Wikipedia

  • Cone — This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article …   Wikipedia

  • SCR-268 radar — The SCR 268 (for Signal Corps Radio no. 268 ) was the US Army s first radar system. It was developed to provide accurate aiming information and used in gun laying systems and directing searchlights against aircraft.The system was already… …   Wikipedia

  • SCR-584 radar — The SCR 584 (short for Signal Corps Radio # 584 ) was a microwave radar developed by the MIT Radiation Laboratory during World War II. It replaced the earlier and much more complex SCR 268 as the US Army s primary anti aircraft gun laying system… …   Wikipedia

  • 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

  • scan — i. To search the sky for any hostile aircraft. The area of the scan for a typical two aircraft formation is indicated in the illustration. In flight, the term means “Search the sector indicated and report any contacts.” ii. To make a sweep of… …   Aviation dictionary

  • Radar — For other uses, see Radar (disambiguation). A long range radar antenna, known as ALTAIR, used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on Kwajalein Atoll …   Wikipedia

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