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Laser-guided Bombs
A laser-guided bomb (LGB) is a guided bomb that uses semi-active laser guidance to strike a designated target with greater accuracy than an unguided bomb. First developed by the United States during the Vietnam War, laser-guided bombs quickly proved their value in precision strikes of difficult point targets. These weapons use on-board electronics to track targets that are designated by laser, typically in the infrared spectrum, and adjust their glide path to accurately strike the target. Since the weapon is tracking a light signature, not the object itself, the target must be illuminated from a separate source, either by ground forces, by a pod on the attacking aircraft, or by a separate support aircraft. Data from the 28,000 laser guided bombs dropped in Vietnam showed that laser-guided bombs achieved direct hits nearly 50% of the time, despite the laser having to be aimed out the side window of the back seat of another aircraft in flight. Unguided bombs had an accuracy rate of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guided Bombs
A guided bomb (also known as a smart bomb, guided bomb unit, or GBU) is a precision-guided munition designed to achieve a smaller circular error probable (CEP). The creation of precision-guided munitions resulted in the retroactive renaming of older bombs as unguided bombs or "dumb bombs". Guidance Guided bombs carry a guidance system which is usually monitored and controlled from an external device. A guided bomb of a given weight must carry fewer explosives to accommodate the guidance mechanisms. Radio The Germans were first to introduce precision guided munitions (PGMs) in combat, using the 1,400-kg (3,100 lb) MCLOS-guidance Fritz X to successfully attack the Italian battleship ''Roma'' in September 1943. The closest Allied equivalents were the 1,000-lb (454 kg) AZON (AZimuth ONly), used in both Europe and the CBI Theater, and the US Navy's Bat, primarily used in the Pacific Theater of World War II which used autonomous, on-board radar guidance. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile Guidance
Missile guidance refers to a variety of methods of guiding a missile or a guided bomb to its intended target. The missile's target accuracy is a critical factor for its effectiveness. Guidance systems improve missile accuracy by improving its Probability of Guidance (Pg). These guidance technologies can generally be divided up into a number of categories, with the broadest categories being "active", "passive", and "preset" guidance. Missiles and guided bombs generally use similar types of guidance system, the difference between the two being that missiles are powered by an onboard engine, whereas guided bombs rely on the speed and height of the launch aircraft for propulsion. History The concept of unmanned guidance originated at least as early as World War I, with the idea of remotely guiding an airplane bomb onto a target, such as the systems developed for the R.F.C. World War I Drone Weapons, first powered drones by Archibald Low (the father of radio guidance). In World War ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-active Radar Homing
Semi-active radar homing (SARH) is a common type of missile guidance system, perhaps the most common type for longer-range air-to-air and surface-to-air missile systems. The name refers to the fact that the missile itself is only a passive detector of a radar signal—provided by an external source via radar illumination—as it reflects off the target (in contrast to active radar homing, which uses an active radar transceiver). Semi-active missile systems use bistatic continuous-wave radar. The NATO brevity code for a semi-active radar homing missile launch is Fox One. Concept The basic concept of SARH is that since almost all detection and tracking systems consist of a radar system, duplicating this hardware on the missile itself is redundant. The weight of a transmitter reduces the range of any flying object, so passive systems have greater reach. In addition, the resolution of a radar is strongly related to the physical size of the antenna, and in the small nose cone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Laser Articles
This is a list of laser topics. A * 3D printing, additive manufacturing * Abnormal reflection * Above-threshold ionization * Absorption spectroscopy * Accelerator physics * Acoustic microscopy * Acousto-optic deflector * Acousto-optic modulator * Acousto-optical spectrometer * Acousto-optics * Active laser medium * Active optics * Advanced Precision Kill Weapon System * Advanced Tactical Laser * Afocal system * Airborne laser * Airborne wind turbine * Airy beam * ALKA * All gas-phase iodine laser * Ambient ionization * Amplified spontaneous emission * Analytical chemistry * Aneutronic fusion * Antiproton Decelerator * Apache Arrowhead * Apache Point Observatory Lunar Laser-ranging Operation * Arago spot * Argon fluoride laser * Argus laser * Asterix IV laser * Astrophysical maser * Atmospheric-pressure laser ionization * Atom interferometer * Atom laser * Atom probe * Atomic clock * Atomic coherence * Atomic fountain * Atomic line filter * Ato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KAB-500L
The KAB-500L is a laser-guided bomb developed by the Soviet Air Force, entering service in 1975. It remains in service with the CIS and post-Soviet Russian Aerospace Forces. The KAB-500L is long and weighs . Its warhead makes up of the total weight, of which roughly 50% is blast-effect high explosive. Russian sources credit it with a CEP of . The technology of the KAB-500L is also used for larger bombs, such as the KAB-1500L family. It is also deployed by the Indian Air Force. The primary launch platform is Su-30MKI. This bomb is also used by Royal Malaysian Air Force on its Sukhoi Su-30MKM. KAB-500S-E KAB-500S-E is a Precision-Guided Munition (PGM) whose guidance system is based on GLONASS. The weapon can be dropped from aircraft flying at an altitude from 500 metres to 5000 metres and with an airspeed of 500–1150 km/h. The CEP is 7–12 metres. These bombs were used for the first time in the Russian military intervention in the Syrian Civil War {{Infobox mili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint Direct Attack Munition
The Joint Direct Attack Munition (JDAM) is a guidance kit that converts unguided bombs, or "dumb bombs", into all-weather precision-guided munitions (PGMs). JDAM-equipped bombs are guided by an integrated inertial guidance system coupled to a Global Positioning System (GPS) receiver, giving them a published range of up to . JDAM-equipped bombs range from . The JDAM's guidance system was jointly developed by the United States Air Force and United States Navy, hence the "joint" in JDAM. When installed on a bomb, the JDAM kit is given a GBU (Guided Bomb Unit) identifier, superseding the Mark 80 or BLU (Bomb, Live Unit) nomenclature of the bomb to which it is attached. The JDAM is not a stand-alone weapon; rather it is a "bolt-on" guidance package that converts unguided gravity bombs into PGMs. The key components of the system are a tail section with aerodynamic control surfaces, a (body) strake kit, and a combined inertial guidance system and GPS guidance control unit. The JDAM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombe Guidée Laser
Bombe Guidée Laser (BGL) laser-guided bombs were developed by Matra (now MBDA) starting in 1978. The guidance system had to work using the same principles as the US Paveway guided bombs. The guidance kits were intended as modifications to existing free fall bombs that were in service with the French Air and Space Force. The semi active laser homing (SALH) guidance system was developed starting from the AS-30 laser-guided missile sensor. The guidance system allowed for in-flight target illumination by the aircraft-mounted ATLIS II (Automatic Tracking Laser Illumination System) or with ground-based laser designator targeting pod. The BGL targeting system are attached to 250, 400 and 1,000 kg free-fall general-purpose bombs. The French Air and Space Force discontinued the purchases due to the higher cost compared to the US Paveway family bombs that were adopted as an interim solution while waiting for the French-made Armement Air-Sol Modulaire, AASM family of guided bombs to ent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inertial Navigation System
An inertial navigation system (INS; also inertial guidance system, inertial instrument) is a navigation device that uses motion sensors (accelerometers), rotation sensors (gyroscopes) and a computer to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the need for external references. Often the inertial sensors are supplemented by a barometric altimeter and sometimes by magnetic sensors (magnetometers) and/or speed measuring devices. INSs are used on mobile robots and on vehicles such as ships, aircraft, submarines, guided missiles, and spacecraft. Older INS systems generally used an inertial platform as their mounting point to the vehicle and the terms are sometimes considered synonymous. Design Inertial navigation is a self-contained navigation technique in which measurements provided by accelerometers and gyroscopes are used to track the position and orientation of an object ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DRDO
The Defence Research and Development Organisation (DRDO) is an agency under the Department of Defence Research and Development in the Ministry of Defence of the Government of India, charged with the military's research and development, headquartered in New Delhi, India. It was formed in 1958 by the merger of the Technical Development Establishment and the Directorate of Technical Development and Production of the Indian Ordnance Factories with the Defence Science Organisation under the administration of Jawaharlal Nehru. Subsequently, Defence Research & Development Service (DRDS) was constituted in 1979 as a service of Group 'A' Officers / Scientists directly under the administrative control of the Ministry of Defence. With a network of 52 laboratories that are engaged in developing defence technologies covering various fields like aeronautics, armaments, electronics, land combat engineering, life sciences, materials, missiles, and naval systems, DRDO is India's largest and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Instruments Research And Development Establishment
The Instruments Research & Development Establishment (IRDE) is a laboratory of the Defence Research & Development Organization (DRDO). Located in Dehradun, its primary function is research and development in the field of optical and electro-optical instrumentation. Their objective is to develop products like night vision devices, electro-optical surveillance and fire control systems. Projects Holographic sight The IRDE has developed holographic sights which are manufactured by India Optel's Ordnance Factory Dehradun, and have a range of up to 300m. The Indian Army has already put in a demand for 20,000 holographic device units, while the National Security Guards has shown interest in the device and requested some units in 2008. Laser-guided anti-tank guided missile In 2020, IRDE was among other DRDO laboratories that jointly developed an indigenous laser-guided anti-tank guided missile that can be fired from an Arjun main battle tank. Anti-drone system In 2021, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
