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Predel-E (in Russian: Предел-Э [1]) is a Russian military over-the-horizon radar system shown since 2017, [2] designed to detect ships in coastal areas. [3]It was developed by Concern Morinformsystem-Agat, with at least one variant designed by NPP Salyut. [3]
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Radar Imaging Satellite 1 or RISAT-1, was an Indian remote sensing satellite built and operated by the Indian Space Research Organisation (ISRO). The second RISAT satellite to be launched, it used a C-band 5.35 GHz synthetic-aperture radar (SAR) for Earth observation .
The 1L121-E gives full hemispheric coverage and is designed to function on the move or while stopped. [1] Moving from stationary to mobile operation requires about two minutes. The radar spots and classifies up to four different target types, positioning each target with an accuracy of 100 meters.
The central acquisition radar (CAR) is a long-range high-resolution 3D surveillance radar. [2] The entral acquisition radar was designed by Electronics and Radar Development Establishment (LRDE), a DRDO laboratory, and is produced by a joint venture between BEL, Larsen & Toubro, Astra Microwave and Entec. The radar employs a planar array ...
On 28 March 2003, presumably partly in response to North Korea's launch of a Taepodong-1 missile over Japan in 1998, and partly to provide a source of satellite images other than through cooperation with the US, where the US charged roughly US$10,000 for each satellite image, [citation needed] Japan launched a radar and an optical spy satellite, officially known as IGS 1A and IGS 1B. [1]
The N036 radar system is developed by Tikhomirov NIIP Institute and consists of a main nose-mounted X-band AESA radar with 1,514 T/R modules, designated the N036-1-01, and two smaller X-band AESA radars with 404 T/R modules (2,322 T/R modules total) mounted on the sides of the forward fuselage designated N036B-1-01.
The United States launched two Future Imagery Architecture (FIA) radar satellites into 122° inclined retrograde orbits in 2010 and 2012. The use of a retrograde orbit suggest that these satellites use synthetic aperture radar. [3] Earth-observing satellites may also be launched into a Sun-synchronous orbit, which is slightly retrograde. [8]