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Ronald Hugh Barker
Ronald Hugh Barker FIEE (19157 October 2015) was an Irish physicist and inventor of Barker code for digital synchronisation. He was a member of the Institution of Engineering and Technology (IET) for 70 years. Born in Dublin, Ireland to English parents, Barker excelled in mathematics, becoming keen on electronics. He is best known for his ground-breaking work on synchronising digital communication systems and framing of received data, using digital codes (see frame slip). These digital codes are known as Barker code. The method was initially researched at SRDE Royal Signals Research Establishment, just after World War II for use in radar, rocket telemetry and digital speech. In 1952, Barker found 7 Barker sequences up to a length of 13 useful for correlation. These sequences are widely used in most data transmissions today. Examples of applications are; radar, mobile phone technology, telemetry, digital speech, ultrasound imaging and testing, GPS and Wi-Fi, etc. Early career ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Set No
Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio ''wireless technology'' include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other electromagnetic phenomena, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telemetry Trials Van Aberporth 1945
Telemetry is the in situ collection of measurements or other data at remote points and their automatic transmission to receiving equipment (telecommunication) for monitoring. The word is derived from the Greek roots ''tele'', "remote", and ''metron'', "measure". Systems that need external instructions and data to operate require the counterpart of telemetry, telecommand. Although the term commonly refers to wireless data transfer mechanisms (e.g., using radio, ultrasonic, or infrared systems), it also encompasses data transferred over other media such as a telephone or computer network, optical link or other wired communications like power line carriers. Many modern telemetry systems take advantage of the low cost and ubiquity of GSM networks by using SMS to receive and transmit telemetry data. A ''telemeter'' is a physical device used in telemetry. It consists of a sensor, a transmission path, and a display, recording, or control device. Electronic devices are widely used i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warnham Court, Horsham C1942
Warnham is a village and civil parish in the Horsham district of West Sussex, England. The village is centred north-northwest of Horsham, from London, to the west of the A24 road. Other named settlements within the parish include the hamlets of Goosegreen, Kingsfold and Winterfold as well as parts of Strood Green and Rowhook. The area is in the northwest of the Weald, a gently sloped remnant forest in southeast England and largely a plain by erosion. The parish has a land area of 1980 hectares (4892 acres). In the 2001 census 1958 people lived in 784 households, of whom 935 were economically active. At the 2011 Census the population was 2,068. Warnham has a number of shops, including a village store and butcher, two pubs ''The Sussex Oak'' and ''The Greets Inn'', a primary school and Warnham railway station lies nearly a mile away from the village, on the Sutton & Mole Valley Lines. The station was built primarily for the brick works, which had some sidings until rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princeton University
Princeton University is a private university, private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial Colleges, fourth-oldest institution of higher education in the United States and one of the nine colonial colleges chartered before the American Revolution. It is one of the highest-ranked universities in the world. The institution moved to Newark, New Jersey, Newark in 1747, and then to the current site nine years later. It officially became a university in 1896 and was subsequently renamed Princeton University. It is a member of the Ivy League. The university is governed by the Trustees of Princeton University and has an endowment of $37.7 billion, the largest List of colleges and universities in the United States by endowment, endowment per student in the United States. Princeton provides undergraduate education, undergraduate and graduate education, graduate in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Aerospace Establishment
The Royal Aircraft Establishment (RAE) was a British research establishment, known by several different names during its history, that eventually came under the aegis of the UK Ministry of Defence (MoD), before finally losing its identity in mergers with other institutions. The first site was at Farnborough Airfield ("RAE Farnborough") in Hampshire to which was added a second site RAE Bedford (Bedfordshire) in 1946. In 1988 it was renamed the Royal Aerospace Establishment (RAE) before merging with other research entities to become part of the new Defence Research Agency in 1991. History In 1904–1906 the Army Balloon Factory, which was part of the Army School of Ballooning, under the command of Colonel James Templer, relocated from Aldershot to the edge of Farnborough Common in order to have enough space to inflate the new "dirigible balloon" or airship which was then under construction.Walker, P; Early Aviation at Farnborough, Volume I: Balloons, Kites and Airships, Macdona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ynyslas
Ynyslas (, meaning "Blue Island") is a small Welsh village about 1.5 miles north of Borth and 8 miles north of Aberystwyth, within the county of Ceredigion. It is sandwiched between a long sandy beach in Cardigan Bay and the beach in the Dyfi Estuary. The area between the sea and the estuary beach is made up of the Ynyslas Sand Dunes which are part of the Dyfi National Nature Reserve and home to many rare plants and animals. The sands of the estuary beach can be driven onto and parked upon. The nature reserve has a visitor centre with toilets and a small shop. At the start of some BBC 1 programmes, the idents show people flying kites on sand dunes, and this was filmed at Ynyslas. The northern end of the Ceredigion Coast Path extends to the Dyfi Estuary National Nature Reserve at Ynyslas. Ecology The Dyfi National Nature Reserve and the Ynyslas Sand Dunes are situated where the mouth of the Afon Leri joins the Dyfi Estuary at Ynyslas. Cors Fochno is situated to the east beyond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telemetry
Telemetry is the in situ data collection, collection of measurements or other data at remote points and their automatic data transmission, transmission to receiving equipment (telecommunication) for monitoring. The word is derived from the Greek language, Greek roots ''tele'', "remote", and ''metron'', "measure". Systems that need external instructions and data to operate require the counterpart of telemetry, telecommand. Although the term commonly refers to wireless data transfer mechanisms (e.g., using radio, ultrasonic, or Infrared#Communications, infrared systems), it also encompasses data transferred over other media such as a telephone or computer network, optical link or other wired communications like power line carriers. Many modern telemetry systems take advantage of the low cost and ubiquity of GSM networks by using SMS to receive and transmit telemetry data. A ''telemeter'' is a physical device used in telemetry. It consists of a sensor, a transmission path, and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fleet Air Arm Anson With First British LOPGAP Guided Missile 29 May 1945
Fleet may refer to: Vehicles * Fishing fleet * Naval fleet *Fleet vehicles, a pool of motor vehicles * Fleet Aircraft, the aircraft manufacturing company Places Canada *Fleet, Alberta, Canada, a hamlet England * The Fleet Lagoon, at Chesil Beach, Dorset *Fleet, Dorset, England, a village and civil parish * Fleet, Hampshire, England, a town and civil parish *Fleet, Hayling Island, Hampshire, England, a hamlet * Fleet Pond, Hampshire, England *River Fleet, subterranean river in London, England **Fleet Street, named after the river ** Fleet Prison, named after the river **Fleet Line, named after the river, was the original name for the London Underground Jubillee Line * Fleet, Lincolnshire, England *Fleet (Kent), a term for a waterway in the Thames marshes, England Scotland *Water of Fleet, a river in Scotland *Fleet Bay, a part of a National Scenic Area within Dumfries and Galloway, Scotland United States *Fleet, Kentucky, US, an unincorporated community In business * ARC Cent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LOPGAP
Seaslug was a first-generation surface-to-air missile designed by Armstrong Whitworth (later part of the Hawker Siddeley group) for use by the Royal Navy. Tracing its history as far back as 1943's LOPGAP design, it came into operational service in 1961 and was still in use at the time of the Falklands War in 1982. Seaslug was intended to engage high-flying targets such as reconnaissance aircraft or bombers before they could launch stand-off weapons. It was only fitted to the Royal Navy's eight County-class destroyers which were designed around the missile system. Seaslug was only fired in anger once as an anti-aircraft missile, from during the Falklands War, but missed its target. Later improvements meant that it could also be used against ships and ground targets. It was planned that Seaslug's medium-range role was to be supplanted by a very long-range missile known as Blue Envoy, but this was passed over in favour of a new medium-range system, Sea Dart. Sea Dart entered service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christchurch, Dorset
Christchurch () is a town and civil parish in Dorset on the south coast of England. The town had a population of 31,372 in 2021. For the borough the population was 48,368. It adjoins Bournemouth to the west, with the New Forest to the east. Part of the Historic counties of England, historic county of Hampshire, Christchurch was a Borough status in the United Kingdom, borough within the administrative county of Dorset from 1974 until 2019, when it became part of the new Bournemouth, Christchurch and Poole unitary authority. Founded in the seventh century at the confluence of the rivers River Avon (Hampshire), Avon and River Stour, Dorset, Stour which flow into Christchurch Harbour, the town was originally named Twynham but became known as Christchurch following the construction of the Christchurch Priory, priory in 1094. The town developed into an important trading port, and was Burh, fortified in the 9th century. Further defences were added in the 12th century with the constructio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Supply
The Ministry of Supply (MoS) was a department of the UK government formed in 1939 to co-ordinate the supply of equipment to all three British armed forces, headed by the Minister of Supply. A separate ministry, however, was responsible for aircraft production, and the Admiralty retained responsibilities for supplying the Royal Navy.Hornby (1958) During the war years the MoS was based at Shell Mex House in The Strand, London. The Ministry of Supply also took over all army research establishments in 1939. The Ministry of Aircraft Production was abolished in 1946, and the MoS took over its responsibilities for aircraft, including the associated research establishments. In the same year, it also took on increased responsibilities for atomic weapons, including the H-bomb development programme. The Ministry of Supply was abolished in late 1959 and its responsibilities passed to the Ministry of Aviation, the War Office, and the Air Ministry. The latter two ministries were subsequently ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
