dual frequency radar

См. также в других словарях:

• Super Dual Auroral Radar Network — The Super Dual Auroral Radar Network (SuperDARN) is an international radar network for studying the upper atmosphere and ionosphere, comprised of eleven radars in the northern hemisphere and seven in the southern hemisphere that operate in the… …   Wikipedia

• Radar MASINT — is one of the subdisciplines of Measurement and Signature Intelligence (MASINT) and refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of Signals Intelligence (SIGINT),… …   Wikipedia

• Wave radar — Ocean surface waves can be measured by several radar remote sensing techniques. Several instruments based on a variety of different concepts and techniques are available to the user and these are all often called wave radars. This article (see… …   Wikipedia

• 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

• Radar altimeter — A radar altimeter, radio altimeter, low range radio altimeter (LRRA) or simply RA measures altitude above the terrain presently beneath an aircraft or spacecraft. This type of altimeter provides the distance between the plane and the ground… …   Wikipedia

• Weather radar — in Norman, Oklahoma with rainshaft …   Wikipedia

• The Southern Hemisphere Auroral Radar Experiment — Antennen des SHARE Das Southern Hemisphere Auroral Radar Experiment (SHARE) ist ein 1988 begonnenes antarktisches Forschungsprojekt zur Beobachtung von Geschwindigkeit und Unregelmäßigkeiten in den elektrischen Feldern der Iono und Magnetosphäre …   Deutsch Wikipedia

• Southern Hemisphere Auroral Radar Experiment — The Southern Hemisphere Auroral Radar Experiment (SHARE), started 1988, is an Antarctic research project designed to observe velocities and irregularities of electrical fields in the ionosphere and magnetosphere. SHARE is operated jointly by the… …   Wikipedia

• Types and uses of radar — Radar has many different types and applications: * Search radars scan a wide area with pulses of short radio waves. They usually scan the area two to four times a minute. The waves are usually less than a meter long. Ships and planes are metal,… …   Wikipedia

• Space-Based Radar — refers to space borne radar systems that may have any of a variety of purposes. A number of earth observing radar satellites, such as RadarSat, have employed synthetic aperture radar (SAR) to obtain terrain and land cover information about the… …   Wikipedia

• JY-9 Radar — Infobox Radar name = JY 9 caption = JY 9 country = People s Republic of China introdate = unknown number = unknown type = Fire Control frequency = S band PRF = 790 Hz Pulsewidth = 20 μs RPM = 6, 12 rpm range = 150 km (Pd=80%; Swerling I; 2 m²)… …   Wikipedia