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SMART-L
SMART-L (Signaal Multibeam Acquisition Radar for Tracking, L band) is a long-range naval search radar introduced in 2002 by Thales Nederland, formerly Hollandse Signaalapparaten (Signaal). Design The digital antenna array has 24 elements; all are used for reception, while 16 are used for creating virtual receiver beams through digital beamforming. The beams' vertical elevation, and compensation for ship movement, is done electronically. Horizontal training is done by mechanically rotating the entire array. As designed, SMART-L has a maximum range of against patrol aircraft, and against stealthy missiles. A software upgrade, Extended Long Range (ELR) Mode, extends the maximum range for the detection of ballistic missiles to over 2000 km, since 2018 all four Zeven Provincien class Frigates of the Royal Netherlands Navy have been equipped with the update. On the 25th of September 2017, as part of the exercise Formidable Shield 2017 the SMART-L MM radar system mounted on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sachsen Class Frigate
The F124 ''Sachsen'' class is a German Navy's class of air-defense frigates. The design of the hull is based on that of the F123 but with enhanced stealth features designed to deceive an opponent's radar and acoustic sensors. The class incorporates an advanced multifunction radar APAR and a SMART-L long-range radar which is purported to be capable of detecting stealth aircraft and stealth missiles. Although designated as frigates, they are comparable to destroyers in capability and were intended to replace the Navy's . They are similar to the Dutch , in that both are based on the use of a common primary anti-air warfare system built around the APAR and SMART-L radars as well as the area-defence SM-2 Block IIIA and point-defence Evolved Sea Sparrow Missile (ESSM) surface-to-air missiles. The German government contracted for three ships in June 1996 with an option on a fourth that was provisionally to have been named ''Thüringen'', but the option for this fourth ship was not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revolutions Per Minute
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or r⋅min−1) is a unit of rotational speed (or rotational frequency) for rotating machines. One revolution per minute is equivalent to hertz. Standards ISO 80000-3:2019 defines a physical quantity called ''rotation'' (or ''number of revolutions''), dimensionless, whose instantaneous rate of change is called ''rotational frequency'' (or ''rate of rotation''), with units of reciprocal seconds (s−1). A related but distinct quantity for describing rotation is ''angular frequency'' (or ''angular speed'', the magnitude of angular velocity), for which the SI unit is the radian per second (rad/s). Although they have the same dimensions (reciprocal time) and base unit (s−1), the hertz (Hz) and radians per second (rad/s) are special names used to express two different but proportional ISQ quantities: frequency and angular frequency, respectively. The conversions between a frequency and an angular frequency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thales Group
Thales S.A., Trade name, trading as Thales Group (), is a French multinational corporation, multinational aerospace and defence industry, defence corporation specializing in electronics. It designs, develops and manufactures a wide variety of aerospace and military systems, devices and equipment but also operates in the computer security, cybersecurity and formerly civil ground transportation sectors. The company is headquartered in Paris' business district, La Défense, and its stock is listed on Euronext Paris. Founded as Thomson-CSF in 1968, the group was rebranded ''Thales'' (named after the Greek philosopher Thales , pronounced as in French language, French) in 2000 due to the company's desire to simplify and improve the group's brand. Thales is partially owned by the Agence des participations de l'État, French state and operates in more than 68 countries. In 2023, the company generated €18,42 billion in revenue and was the 17th largest defence contractor in the world, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Radars
A sea is a large body of salt water. There are particular seas and the sea. The sea commonly refers to the ocean, the interconnected body of seawaters that spans most of Earth. Particular seas are either marginal seas, second-order sections of the oceanic sea (e.g. the Mediterranean Sea), or certain large, nearly landlocked bodies of water. The salinity of water bodies varies widely, being lower near the surface and the mouths of large rivers and higher in the depths of the ocean; however, the relative proportions of dissolved salts vary little across the oceans. The most abundant solid dissolved in seawater is sodium chloride. The water also contains salts of magnesium, calcium, potassium, and mercury, among other elements, some in minute concentrations. A wide variety of organisms, including bacteria, protists, algae, plants, fungi, and animals live in various marine habitats and ecosystems throughout the seas. These range vertically from the sunlit surface and shor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Selex RAN-40L
Selex RAN-40L is a naval 3D L band search radar developed by Leonardo. The radar is used for long range maritime air surveillance and early warning. The radar uses a fully solid state active phased array antenna and capable of tracking and detecting air targets like aircraft or drones up to 400 km away. RAN-40L is based on existing land based 3D RAT-31DL radar which is a system widely used by NATO Countries for long air surveillance. The radar functions include Track While Scan for air and surface long-range surveillance and missile tracking . Radar coverage is obtained by phase scanning in elevation, while mechanically rotating in azimuth. The antenna rotates at 6rpm or 12rpm, with 360° azimuth coverage. Operators ; ;* INS Vikrant Aircraft Carrier ; * Italian aircraft carrier Cavour * Durand de la Penne-class destroyers See also * Selex RAT-31DL *SMART-L *AN/SPY-3 *AN/SPY-6 *OPS-24 *OPS-50 * Type 346 Radar *Phased array *Active electronically scanned ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BAE Systems Integrated System Technologies
BAE Systems Integrated System Technologies (known informally as Insyte) was a division of BAE Systems plc. The division was a major supplier of defence electronics, integrated command and control systems, radars, simulators, meteorological systems, data links and C4ISR battle management systems Insyte was formed on 3 May 2005, by bringing together BAE Systems' interests in C4ISR and the UK operations of AMS following the Eurosystems Transaction. Its headquarters were in Frimley, Surrey Surrey () is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Greater London to the northeast, Kent to the east, East Sussex, East and West Sussex to the south, and Hampshire and Berkshire to the wes ..., but the major activities of the division are carried out across 13 sites throughout England and Scotland. In 2010 BAE Systems merged Integrated System Technologies into its air and naval businesses. References {{Surrey Heath Ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Operations Control Station Nieuw-Milligen
The Air Operations Control Station Nieuw-Milligen (AOCS NM) of the Royal Netherlands Air Force is located near Nieuw-Milligen (in the municipality of Apeldoorn). It is home to: *the 710th Sqn. Control & Reporting Centre Squadron (CRC) *the 711th Sqn. Air Traffic Control Squadron (MilATCC, i.e. Military Air Traffic Control Centre) *the 970th Sqn. Support Squadron It is the air traffic control centre for all military air traffic in the Netherlands, as well as the centre for Air Battle Management, Air Surveillance, Fighter and SAM Control, and Alerting. Air traffic control and information service is also provided to civilian traffic operating within its airspace. AOCS NM uses ''DutchMil'' as its callsign for air traffic control services, and ''Bandbox'' as a callsign for the military Control and Reporting Centre (CRC). The base started out as a remount facility in 1860 as Kamp Nieuw-Milligen. A small military airstrip was added to the base in 1913, primarily for diversions, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type 45 Destroyer
The Type 45 destroyer, also known as the D or ''Daring'' class, is a class of six guided-missile destroyers built for the United Kingdom's Royal Navy in the early 21st century. The class is primarily designed for anti-aircraft and anti-missile warfare and is built around the PAAMS (Sea Viper) air-defence system using the SAMPSON Active electronically scanned array (AESA) and the S1850M long-range radars. The first three destroyers were assembled by BAE Systems Surface Fleet Solutions from partially prefabricated "blocks" built at different shipyards; the remaining three were built by BAE Systems Maritime – Naval Ships. The first ship in the ''Daring'' class, HMS ''Daring'', was launched on 1 February 2006 and commissioned on 23 July 2009. The Type 45 destroyers were built to replace the Type 42 (''Sheffield''-class) destroyers that had served during the Falklands War, with the last Type 42 being decommissioned in 2013. The National Audit Office reported that, during a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stealth Technology
Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures. The term covers a range of military technology, methods used to make personnel, Stealth aircraft, aircraft, Stealth ship, ships, submarines, missiles, satellites, and Stealth ground vehicle, ground vehicles less visible (ideally invisible) to radar, Thermographic camera, infrared, sonar and other detection methods. It corresponds to military camouflage for these parts of the electromagnetic spectrum (i.e., multi-spectral camouflage). Development of modern stealth technologies in the United States began in 1958, where earlier attempts to prevent radar tracking of its Lockheed U-2, U-2 spy planes during the Cold War by the Soviet Union had been unsuccessful. Designers turned to developing a specific shape for planes that tended to reduce detection by redirecting electromagnetic radiation waves from radars. Radiation-a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D Band (NATO)
The NATO D band is the obsolete designation given to the radio frequencies from 1.0 to 2.0 GHz (equivalent to wavelength In physics and mathematics, wavelength or spatial period of a wave or periodic function is the distance over which the wave's shape repeats. In other words, it is the distance between consecutive corresponding points of the same ''phase (waves ...s between 30 and 15 cm) during the cold war period. Since 1992, frequency allocations, allotment and assignments are in line with the NATO Joint Civil/Military Frequency Agreement (NJFA). However, in order to identify military radio spectrum requirements, e.g. for crisis management planning, training, electronic warfare activities, or in military operations, this system is still in use. References {{DEFAULTSORT:D Band Microwave bands ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Identification Friend Or Foe
Identification, friend or foe (IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an ''interrogation'' signal and then sends a ''response'' that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. It enables military and civilian air traffic control interrogation systems to identify aircraft, vehicles or forces as friendly, as opposed to neutral or hostile, and to determine their bearing and range from the interrogator. IFF is used by both military and civilian aircraft. IFF was first developed during World War II, with the arrival of radar, and several friendly fire incidents. IFF can only positively identify friendly aircraft or other forces. If an IFF interrogation receives no reply or an invalid reply, the object is not positively identified as foe; friendly forces may not properly reply to IFF for various reasons such as e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polarization (waves)
, or , is a property of transverse waves which specifies the geometrical orientation of the oscillations. In a transverse wave, the direction of the oscillation is perpendicular to the direction of motion of the wave. One example of a polarized transverse wave is vibrations traveling along a taut string, for example, in a musical instrument like a guitar string. Depending on how the string is plucked, the vibrations can be in a vertical direction, horizontal direction, or at any angle perpendicular to the string. In contrast, in longitudinal waves, such as sound waves in a liquid or gas, the displacement of the particles in the oscillation is always in the direction of propagation, so these waves do not exhibit polarization. Transverse waves that exhibit polarization include electromagnetic waves such as light and radio waves, gravitational waves, and transverse sound waves ( shear waves) in solids. An electromagnetic wave such as light consists of a coupled oscillating el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
