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Laser Warning Receiver
A laser warning receiver is a type of warning system used as a passive military defence. It detects, analyzes, and locates directions of laser emissionsPDF version4.53 MB) from laser guidance systems and laser rangefinders. Then it alerts the crew and can start various countermeasures, like smoke screen, aerosol screen (e.g. Shtora), active laser self-defence weapon with laser dazzler (LSDW, used on the Chinese Type 99 main battle tank), laser jammer, etc. Detectors used in LWR are usually based on a semiconductor photodetector array, which is typically cryogenically or thermal-electric cooled. Sometimes avalanche photodiodes (APD), photoconductivity, photoelectromagnetic, or photodiffusion devices are used even without cooling. Some devices detect only the main beam of foreign lasers while others detect even scattered rays. Produced by * ASELSAN * BAE Systems * Thales Optronics * Elbit Systems * Global Industrial Defence Solutions * PentaTec * Hensoldt Models Some mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warning System
Warning system is any system of biological or technical nature deployed by an individual or group to inform of a future danger. Its purpose is to enable the deployer of the warning system to prepare for the danger and act accordingly to mitigate or avoid it. Warnings cannot be effective unless people react to them. People are more likely to ignore a system that regularly produces false warnings (the cry-wolf effect), but reducing the number of false warnings generally also increases the risk of not giving a warning when it is needed. Some warnings are non-specific: for instance, the probability of an earthquake of a certain magnitude in a certain area over the next decade. Such warnings cannot be used to guide short-term precautions such as evacuation. Opportunities to take long-term precautions, such as better building codes and disaster preparedness, may be ignored. Biological warning systems *Aposematism (e.g. warning coloration) * Climate canary *Fear * Miner's canary *Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Industrial Defence Solutions
Global Industrial & Defence Solutions (GIDS) is a Pakistani state-owned defence conglomerate, and the country's largest defence manufacturer, offering products for military applications. Customers include the Pakistan Armed Forces. GIDS' product portfolio comprises offerings in the domains of air, land, aea, nuclear, biological and chemical defence and security. GIDS is also Pakistan's largest state-owned manufacturer of unmanned aerial vehicles (UAVs), offering medium range tactical UAVs and short-range, hand-launched and VTOL systems. Established in 2007, GIDS is based in Rawalpindi, Pakistan. According to Janes Information Services, it is "Pakistan’s largest state-owned manufacturer of unmanned aerial vehicles". GIDS frequently exhibits its products at arms expositions in the Middle East and Africa. Its CEO is Mr. Asad Kamal GIDS exports Pakistani defence manufacturing products to international markets and acts as "the means to help vertically integrate customers across P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar Warning Receiver
Radar warning receiver (RWR) systems detect the radio emissions of radar systems. Their primary purpose is to issue a warning when a radar signal that might be a threat is detected, like a fighter aircraft's fire control radar. The warning can then be used, manually or automatically, to evade the detected threat. RWR systems can be installed in all kind of airborne, sea-based, and ground-based assets such as aircraft, ships, automobiles, military bases. This article is focused mainly on airborne military RWR systems; for commercial police speed detection radar RWR systems, see radar detector. Depending on the market the RWR system is designed for, it can be as simple as detecting the presence of energy in a specific radar band, such as the frequencies of known surface-to-air missile systems. Modern RWR systems are often capable of classifying the source of the radar by the signal's strength, phase and signal details. The information about the signal's strength and waveform can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/AAR-47 Missile Approach Warning System
The AN/AAR-47 Missile Warning System is a Missile Approach Warning system used on slow moving aircraft such as helicopters and military transport aircraft to notify the pilot of threats and to trigger the aircraft's countermeasures systems. Its main users are the U.S. Army, Navy and Air Force, but is also operated by other countries. Originally developed by Loral (now part of BAE Systems), and later dual-source procured from Loral Infrared & Imaging Systems and Honeywell Electro-Optics Div., both in Lexington, MA,Long Range Acquisition Estimates (FY 91 Base Year Projections) U.S. Government Printing Office, 1990, p. 41. it has been a product of Alliant Techsyst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hensoldt
Hensoldt AG ''(HENSOLDT)'' is a multinational corporation headquartered in Germany which focuses on sensor technologies for protection and surveillance missions in the defence, security and aerospace sectors. The main product areas are radar, optoelectronics and avionics. Hensoldt’s main office is in Taufkirchen near Munich, Germany. On 25 September 2020, HENSOLDT AG was listed in the Prime Standard of the Frankfurt Stock Exchange at an issue price of 12.00 euros. Based on the issue price, the market capitalisation amounted to 1.26 billion euros. History The company originated from the electronics business unit of the defence division of the Airbus Group. At the end of February 2017, Airbus sold this business unit to the US financial investor KKR for 1.1 billion euros.Arno Schuetze and Sabine Siebold (September 5, 2019)KKR to sell or float German defence supplier Hensoldt: sources''Reuters''. Since December 2020, Federal Republic of Germany holds a minimum share, which is ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elbit Systems
Elbit Systems Ltd. is an Israel-based international defense electronics company engaged in a wide range of programs throughout the world. The company, which includes Elbit Systems and its subsidiaries, operates in the areas of aerospace, land and naval systems, command, control, communications, computers, intelligence surveillance and reconnaissance ( C4ISR), unmanned aircraft systems (UAS), advanced electro-optics, electro-optic space systems, electronic warfare suites, signal intelligence (SIGINT) systems, data links and communications systems and radios. The company also focuses on the upgrading of existing military platforms, developing new technologies for defense, homeland security and commercial aviation applications and providing a range of support services, including training and simulation systems. In 2016, Elbit Systems had approximately 13,895 employees, the majority of whom are engaged in engineering, mechanics, research and development, and other computing and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
