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Surveillance Australia
Surveillance Australia Pty Ltd (formerly ''Cobham Aviation Services Australia - Special Mission'') is an Australian aviation company. It is primarily engaged in servicing the Australian Border Force Coastwatch contract, flying surveillance patrols within the Australian Exclusive Economic Zone (AEEZ). History Surveillance Australia was established in 1994 by National Jet Systems as a subsidiary to operate fixed-wing aerial surveillance aircraft and patrols on behalf of the Australian Customs Service Coastwatch operations. In 1999, National Jet Systems and its subsidiaries including Surveillance Australia, were acquired by Cobham plc for £24.5 million. In 2006, Surveillance Australia was awarded the 1 billion Coastwatch contract that will see its aircraft operating through to 2020. This contract saw operations be restricted to only 10 de Havilland Canada Dash 8 aircraft, retiring the previously mixed fleet including the Reims F406 Caravan II. This contract was due to be succee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leidos Holdings Inc
Leidos, formerly known as Science Applications International Corporation (SAIC), is an American defense, aviation, information technology (Lockheed Martin IS&GS), and biomedical research company headquartered in Reston, Virginia, that provides scientific, engineering, systems integration, and technical services. Leidos merged with Lockheed Martin's IT sector, Information Systems & Global Solutions, in August 2016 to create the defense industry’s largest IT services provider. The Leidos-Lockheed Martin merger is one of the biggest transactions thus far in the consolidation of a defense sector. Leidos works extensively with the United States Department of Defense, the United States Department of Homeland Security, and the United States Intelligence Community, including the NSA, as well as other U.S. government civil agencies and selected commercial markets. History As SAIC The company was founded by J. Robert "Bob" Beyster in 1969 in the La Jolla neighborhood of San Diego, Cali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fugro
Fugro is a Dutch multinational public company headquartered in Leidschendam, Netherlands, that specializes in collecting and analysing geological data, both on land and at sea. Employing approximately 9,000 people in 65 countries, Fugro serves clients around the globe, predominantly in the energy and infrastructure industries, both offshore and onshore. In 2018, revenue amounted to €1.65 billion. The company is listed on Euronext Amsterdam, Mark Heine is the CEO and Chairman of the Board of Management and Harrie L.J. Noy is Chairman of the Supervisory Board. History Kornelis "Kees" Joustra founded Fugro on 2 May 1962 as Ingenieursbureau voor ''Fu''nderingstechniek en ''Gro''ndmechanica, Dutch for "Engineering Company for Foundation technology and Soil Mechanics". In the wake of the 1970s energy crisis the offshore business came to a standstill. This resulted in the acquisition of its main competitor, McClelland, into Fugro-McClelland in October 1987. Fugro has since vigorou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Border Command
The Maritime Border Command (MBC) is Australia's principal civil maritime security agency, a de facto coast guard, operating in the maritime domain to ensure compliance with Australia's maritime legislation by foreign and domestic non-state actors. It is responsible for border protection in the exclusive economic zone of Australia and its 19,650 kilometres of coastline and issues such as illegal fishing and exploitation of natural resources, maritime terrorism and piracy, biosecurity threats, and marine pollution. It is a multi-agency command within the Department of Home Affairs comprising both Australian Border Force (ABF) and Australian Defence Force (ADF) personnel, led by a rear admiral in the Royal Australian Navy. In February 2019, Lee Goddard was promoted to the rank of rear admiral and became the Commander of MBC. The command was established in 2005 and originally named the Joint Offshore Protection Command. In October 2006 it was renamed to Border Protection Command an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lowest Safe Altitude
In aviation (particularly in air navigation), lowest safe altitude (LSALT) is an altitude that is at least 500 feet above any obstacle or terrain within a defined safety buffer region around a particular route that a pilot might fly. The safety buffer allows for errors in the air by including an additional area that a pilot might stray into by flying off track. By flying at or above this altitude a pilot complies with terrain clearance requirements on that particular flight leg. Australian definition * The minimum LSALT is 1500 feet. * LSALT is 1360 feet above the highest terrain where any obstacle thereon is less than 360 feet above the terrain, or there is no charted obstacle. * LSALT is 1000 feet above the highest obstacle which is greater than 360 feet above the terrain. For example, if there is an obstacle at 200 feet above terrain of 2500 feet, LSALT is 2500 feet (terrain height) + 1360 feet (clearance height), for an LSALT of 3860 feet; if there is an obstacle at 450 fee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moving Target Indication
Moving target indication (MTI) is a mode of operation of a radar to discriminate a target against the clutter. It describes a variety of techniques used for finding moving objects, like an aircraft, and filter out unmoving ones, like hills or trees. It contrasts with the modern stationary target indication (STI) technique, which uses details of the signal to directly determine the mechanical properties of the reflecting objects and thereby find targets whether they are moving or not. Early MTI systems generally used an acoustic delay line to store a single pulse of the received signal for exactly the time between broadcasts (the pulse repetition frequency). This stored pulse will be sent to the display along with the next received pulse. The result was that the signal from any objects that did not move mixed with the stored signal and became muted out. Only signals that changed, because they moved, remained on the display. These were subject to a wide variety of noise effects that m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthetic Aperture Radar
Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes. SAR uses the motion of the radar antenna over a target region to provide finer spatial resolution than conventional stationary beam-scanning radars. SAR is typically mounted on a moving platform, such as an aircraft or spacecraft, and has its origins in an advanced form of side looking airborne radar (SLAR). The distance the SAR device travels over a target during the period when the target scene is illuminated creates the large ''synthetic'' antenna aperture (the ''size'' of the antenna). Typically, the larger the aperture, the higher the image resolution will be, regardless of whether the aperture is physical (a large antenna) or synthetic (a moving antenna) – this allows SAR to create high-resolution images with comparatively small physical antennas. For a fixed antenna size and orientation, objects which are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverse Synthetic Aperture Radar
Inverse synthetic-aperture radar (ISAR) is a radar technique using radar imaging to generate a two-dimensional high resolution image of a target. It is analogous to conventional SAR, except that ISAR technology uses the movement of the target rather than the emitter to create the synthetic aperture. ISAR radars have a significant role aboard maritime patrol aircraft to provide them with radar image of sufficient quality to allow it to be used for target recognition purposes. In situations where other radars display only a single unidentifiable bright moving pixel, the ISAR image is often adequate to discriminate between various missiles, military aircraft, and civilian aircraft. Radar cross-section imaging Images of the target region produced by ISAR can be a useful tool in locating scattering regions on the target. ISAR images are often produced by rotating the target and processing the resultant Doppler histories of the scattering centers. If the target rotates in azimuth at a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raytheon
Raytheon Technologies Corporation is an American multinational aerospace and defense conglomerate headquartered in Arlington, Virginia. It is one of the largest aerospace and defense manufacturers in the world by revenue and market capitalization. In addition, it is one of the largest providers of intelligence services. Raytheon Technologies manufactures aircraft engines, avionics, aerostructures, cybersecurity, guided missiles, air defense systems, satellites, and drones. The company is also a large military contractor, getting a significant portion of its revenue from the U.S. government. The company is the result of the merger of equals between the aerospace subsidiaries of United Technologies Corporation (UTC) and the Raytheon Company, which was completed on April 3, 2020. Before the merger, UTC spun off its non-aerospace subsidiaries Otis Elevator Company and Carrier Corporation. UTC is the nominal survivor of the merger but it changed its name to Raytheon Technologies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LADS
The Laser Airborne Depth Sounder (LADS) Flight was a unit of the Royal Australian Navy. Unlike the rest of the flying units of the RAN, it was not controlled by the Fleet Air Arm from , but instead fell under the operational control of the Australian Hydrographic Service at , providing a platform for the operation of the laser airborne depth sounder system. LADS Flight conducted its last sortie on 7 November 2019. History In the 1970s, the Royal Australian Navy's Hydrographic Service was still limited in its ability to survey the vastness of Australia's coastal waters, and was still producing charts on areas where surveying was incomplete or had not even taken place. As a consequence, the RAN began to search for a way of effectively surveying the Australian coastline from the air, which led to the development of the Laser Airborne Depth Sounder system by the Defence Science and Technology Organisation, a part of the Australian Department of Defence, with trials beginning in 1977.Sl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Patrol
{{Unreferenced, date=March 2008 Maritime patrol is the task of monitoring areas of water. Generally conducted by military and law enforcement agencies, maritime patrol is usually aimed at identifying human activities. Maritime patrol refers to active patrol of an area, as opposed to passive monitoring systems such as sound-detection fixtures or land-based spotters. A patrol consists of a ship, submarine, aircraft or satellite examining the patrolled area and seeking out activities to be identified and reported. Maritime patrol is critical in wartime situations for navies to locate enemy forces to engage or defend against. Peacetime patrols are important for interdiction of criminal activities and for ensuring legal use of waters. Maritime patrols can be conducted by surface ships and submarines, by aircraft (e.g. MPA) and other aerial vehicles, and even by satellites. Human spotting remains an important part of detecting activity, but increasingly electronic systems are used. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombardier Dash 8
The De Havilland Canada DHC-8, commonly known as the Dash 8, is a series of turboprop-powered regional airliners, introduced by de Havilland Canada (DHC) in 1984. DHC was later bought by Boeing in 1988, then by Bombardier in 1992; then by Longview Aviation Capital in 2019, reviving the De Havilland Canada brand. Powered by two Pratt & Whitney Canada PW100s, it was developed from the Dash 7 with improved cruise performance and lower operational costs, but without STOL performance. Three sizes were offered: initially the 37–40 seat -100 until 2005 and the more powerful -200 from 1995, the stretched 50–56 seats -300 from 1989, both until 2009, and the 68–90 seats -400 from 1999, still in production. The QSeries are post-1997 variants fitted with active noise control systems. Development Initial development In the 1970s, de Havilland Canada had invested heavily in its Dash 7 project, concentrating on STOL and short-field performance, the company's traditional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broome, Western Australia
Broome, also known as Rubibi by the Yawuru people, is a coastal pearling and tourist town in the Kimberley region of Western Australia, north of Perth. In the the population was recorded as 14,660. It is the largest town in the Kimberley region. Geography Broome is located on Western Australia's tropical Kimberley coast on the eastern edge of the Indian Ocean. Roebuck Bay Being situated on a north–south peninsula, Broome has water on both sides of the town. On the eastern shore are the waters of Roebuck Bay extending from the main jetty at Port Drive to Sandy Point, west of Thangoo station. Town Beach is part of the shoreline and is popular with visitors on the eastern end of the town. It is the site of the 'Staircase to the Moon', where a receding tide and a rising moon combine to create a stunning natural phenomenon. On "Staircase to the Moon" nights, a food and craft market operates on Town Beach. Roebuck Bay is of international importance for the millions of migratin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
