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Clutter Fence
A clutter fence is a device used with some radar systems to prevent reflections from nearby objects reaching the receiver. They are normally constructed out of conventional metal fencing material. They may serve a secondary role in protecting crews on the ground from the microwave signal of some very high-powered radars. References * {{mil-stub Radar theory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nike Zeus Tracking Radars On Kwajalein In 1960s
Nike often refers to: * Nike (mythology), a Greek goddess who personifies victory * Nike, Inc., a major American producer of athletic shoes, apparel, and sports equipment Nike may also refer to: People * Nike (name), a surname and feminine given name *Nike, daughter of Shahrbaraz Arts, entertainment, and media * Nike Award, a Polish language literature prize *''Nike of Samothrace'', an ancient statue of the goddess Nike *Nike of Callimachus, an ancient statue of the goddess Nike * "Nikes" (song), by Frank Ocean from the album ''Blonde'' (2016) Military * Project Nike, a US Army missile project ** MIM-3 Nike Ajax, a solid fuel–propelled surface-to-air missile ** MIM-14 Nike-Hercules, a solid fuel–propelled surface-to-air missile ** Nike (rocket stage) ** Various US sounding rockets named after the upper stage used, including: *** Nike Apache *** Nike-Asp *** Nike-Cajun *** Nike-Deacon *** Nike Hawk *** Nike Hydac *** Nike Iroquois *** Nike Javelin *** Nike Malemu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microwave
Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively. Different sources define different frequency ranges as microwaves; the above broad definition includes both UHF and EHF (millimeter wave) bands. A more common definition in radio-frequency engineering is the range between 1 and 100 GHz (wavelengths between 0.3 m and 3 mm). In all cases, microwaves include the entire SHF band (3 to 30 GHz, or 10 to 1 cm) at minimum. Frequencies in the microwave range are often referred to by their IEEE radar band designations: S, C, X, Ku, K, or Ka band, or by similar NATO or EU designations. The prefix ' in ''microwave'' is not meant to suggest a wavelength in the micrometer range. Rather, it indicates that microwaves are "small" (having shorter wavelengths), compared to the radio waves used prior to microwave te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
