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Definition. Radial velocity aliasing occurs when reflections arrive from reflectors moving fast enough for the Doppler frequency to exceed the pulse repetition frequency (PRF). Frequency ambiguity resolution is required to obtain the true radial velocity when the measurements is made using a system where the following inequality is true.
Moving target indication ( MTI) is a mode of operation of a radar to discriminate a target against the clutter. [1] It describes a variety of techniques used for finding moving objects, like an aircraft, and filter out unmoving ones, like hills or trees. It contrasts with the modern stationary target indication (STI) technique, which uses ...
Radar engineering is the design of technical aspects pertaining to the components of a radar and their ability to detect the return energy from moving scatterers — determining an object's position or obstruction in the environment. [1] [2] [3] This includes field of view in terms of solid angle and maximum unambiguous range and velocity, as ...
Space-based radar or spaceborne radar is a radar operating in outer space; orbiting radar is a radar in orbit and Earth orbiting radar is a radar in geocentric orbit. A number of Earth-observing satellites , such as RADARSAT , have employed synthetic aperture radar (SAR) to obtain terrain and land-cover information about the Earth .
The Aggie Doppler Radar in operation atop the Eller O&M Building at Texas A&M University during a rare southern Texas snow storm on February 23, 2010. The Aggie Doppler Radar ( ADRAD) is a Doppler weather radar located on the roof of the Eller Oceanography & Meteorology Building on the Texas A&M University campus in College Station, Texas .
Terminal Doppler Weather Radar (TDWR) is a Doppler weather radar system with a three-dimensional "pencil beam" used primarily for the detection of hazardous wind shear conditions, precipitation, and winds aloft on and near major airports situated in climates with great exposure to thunderstorms in the United States. [1]
With a range of 30 nm, the radar is compatible with IR-guided air-to-air missiles, free-fall bomb, rockets and guns. Grifo-Mk-II: Improvement of Grifo-7 radar in the same way Grio-ASV was developed to Grifo-X, Grifo-Mk-II is a pulse-Doppler radar upgrade of Grifo-7 monopulse radar. With weight only increased by 1 kg to 56 kg, Grifo-Mk-II has ...
Wind profiler. A wind profiler is a type of weather observing equipment that uses radar or sound waves ( SODAR) to detect the wind speed and direction at various elevations above the ground. Readings are made at each kilometer above sea level, up to the extent of the troposphere (i.e., between 8 and 17 km above mean sea level).
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