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Lehmann Aviation LV580
Lehmann Aviation Ltd (France), designs and manufactures professional civilian drones/UAVs since 2005. The company has two lines of UAVs: L-A series line of fully automatic drones designed for high precision mapping; construction/mining and precision agriculture; and L-M series line of both automatic and ground-controlled drones for long-range real-time surveillance. L-A series The L-A series was launched in 2012 with the release of LA100 fully automatic personal drone for GoPro users (out of production). The series was then extended in 2013 to LA200, LA300 and later LA300AG drones, designed for corporate communications, mapping/mining/construction and precision agriculture, respectively. L-A series 2016 In July 2016 Lehmann Aviation announced launch of a totally new L-A series, redesigned from scratch, comprising three fully automatic (for people with no piloting background) light-weight (1250gr/44oz) aircraft for three major mapping applications: •LA500 for mining and constr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller and a system of communications with the UAV. The flight of UAVs may operate under remote control by a human operator, as remotely-piloted aircraft (RPA), or with various degrees of autonomy, such as autopilot assistance, up to fully autonomous aircraft that have no provision for human intervention. UAVs were originally developed through the twentieth century for military missions too "dull, dirty or dangerous" for humans, and by the twenty-first, they had become essential assets to most militaries. As control technologies improved and costs fell, their use expanded to many non-military applications.Hu, J.; Bhowmick, P.; Jang, I.; Arvin, F.; Lanzon, A.,A Decentralized Cluster Formation Containment Framework for Multirobot Systems IEEE Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Elevation Model
A digital elevation model (DEM) or digital surface model (DSM) is a 3D computer graphics representation of elevation data to represent terrain or overlaying objects, commonly of a planet, moon, or asteroid. A "global DEM" refers to a discrete global grid. DEMs are used often in geographic information systems (GIS), and are the most common basis for digitally produced relief maps. A digital terrain model (DTM) represents specifically the ground surface while DEM and DSM may represent tree top canopy or building roofs. While a DSM may be useful for landscape modeling, city modeling and visualization applications, a DTM is often required for flood or drainage modeling, land-use studies, geological applications, and other applications, and in planetary science. Terminology There is no universal usage of the terms ''digital elevation model'' (DEM), ''digital terrain model'' (DTM) and ''digital surface model'' (DSM) in scientific literature. In most cases the term ''digital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehmann Aviation LV580
Lehmann Aviation Ltd (France), designs and manufactures professional civilian drones/UAVs since 2005. The company has two lines of UAVs: L-A series line of fully automatic drones designed for high precision mapping; construction/mining and precision agriculture; and L-M series line of both automatic and ground-controlled drones for long-range real-time surveillance. L-A series The L-A series was launched in 2012 with the release of LA100 fully automatic personal drone for GoPro users (out of production). The series was then extended in 2013 to LA200, LA300 and later LA300AG drones, designed for corporate communications, mapping/mining/construction and precision agriculture, respectively. L-A series 2016 In July 2016 Lehmann Aviation announced launch of a totally new L-A series, redesigned from scratch, comprising three fully automatic (for people with no piloting background) light-weight (1250gr/44oz) aircraft for three major mapping applications: •LA500 for mining and constr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehmann Aviation LP960
Lehmann Aviation Ltd (France), designs and manufactures professional civilian drones/UAVs since 2005. The company has two lines of UAVs: L-A series line of fully automatic drones designed for high precision mapping; construction/mining and precision agriculture; and L-M series line of both automatic and ground-controlled drones for long-range real-time surveillance. L-A series The L-A series was launched in 2012 with the release of LA100 fully automatic personal drone for GoPro users (out of production). The series was then extended in 2013 to LA200, LA300 and later LA300AG drones, designed for corporate communications, mapping/mining/construction and precision agriculture, respectively. L-A series 2016 In July 2016 Lehmann Aviation announced launch of a totally new L-A series, redesigned from scratch, comprising three fully automatic (for people with no piloting background) light-weight (1250gr/44oz) aircraft for three major mapping applications: •LA500 for mining and constr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehmann Aviation Wing
Lehmann is a German surname. Geographical distribution As of 2014, 75.3% of all bearers of the surname ''Lehmann'' were residents of Germany, 6.6% of the United States, 6.3% of Switzerland, 3.2% of France, 1.7% of Australia and 1.3% of Poland. In Germany, the frequency of the surname was higher than national average in the following states: * 1. Brandenburg (1:90) * 2. Saxony (1:206) * 3. Saxony-Anhalt (1:227) * 4. Berlin (1:228) * 5. Mecklenburg-Vorpommern (1:408) * 6. Thuringia (1:493) In Switzerland, the frequency of the surname was higher than national average in the following cantons: * 1. Bern (1:240) * 2. Solothurn (1:342) * 3. Fribourg (1:486) * 4. Basel-Stadt (1:524) * 5. Jura (1:567) * 6. Thurgau (1:606) People * Adolf Lehmann, (1863-1937), Canadian chemist who worked in India * Anna Ilsabe Lehmann, wife of Barthold Brockes * Beatrix Lehmann, British actress * Christina Lehmann (born 1951), German chess master * Christopher Lehmann-Haupt, American journalist, ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miniature UAV
A miniature UAV, small UAV (SUAV), or drone is an unmanned aerial vehicle small enough to be man-portable. Smallest UAVs are called micro air vehicle. Miniature UAVs range from micro air vehicles (MAVs) that can be carried by an infantryman, to man-portable UAVs that can be carried and launched like an infantry man-portable air-defense system. The term is usually applied to those used for military purposes. SUAVs have been given various definitions among national regulation authorities, often without including size precisions and differing about weight measurement specifications. Those definitions range from less than 2 kg for Canada to less than 25 kg for the United States. UE's SESAR prospective for the 2020 Air Traffic Management rules also proposed less than 25 kg, while UK's CAA stated less than 20 kg. MAVs and mesicopters The notion that small, even very small, UAVs might have practical uses arose in the early 1990s. In 1992, DARPA conducted a works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehmann Aviation Ground Control System
Lehmann is a German surname. Geographical distribution As of 2014, 75.3% of all bearers of the surname ''Lehmann'' were residents of Germany, 6.6% of the United States, 6.3% of Switzerland, 3.2% of France, 1.7% of Australia and 1.3% of Poland. In Germany, the frequency of the surname was higher than national average in the following states: * 1. Brandenburg (1:90) * 2. Saxony (1:206) * 3. Saxony-Anhalt (1:227) * 4. Berlin (1:228) * 5. Mecklenburg-Vorpommern (1:408) * 6. Thuringia (1:493) In Switzerland, the frequency of the surname was higher than national average in the following cantons: * 1. Bern (1:240) * 2. Solothurn (1:342) * 3. Fribourg (1:486) * 4. Basel-Stadt (1:524) * 5. Jura (1:567) * 6. Thurgau (1:606) People * Adolf Lehmann, (1863-1937), Canadian chemist who worked in India * Anna Ilsabe Lehmann, wife of Barthold Brockes * Beatrix Lehmann, British actress * Christina Lehmann (born 1951), German chess master * Christopher Lehmann-Haupt, American journalist, ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Sectors
The private sector is the part of the economy, sometimes referred to as the citizen sector, which is owned by private groups, usually as a means of establishment for profit or non profit, rather than being owned by the government. Employment The private sector employs most of the workforce in some countries. In private sector, activities are guided by the motive to earn money. A 2013 study by the International Finance Corporation (part of the World Bank Group) identified that 90 percent of jobs in developing countries are in the private sector. Diversification In free enterprise countries, such as the United States, the private sector is wider, and the state places fewer constraints on firms. In countries with more government authority, such as China, the public sector makes up most of the economy. Regulation States legally regulate the private sector. Businesses operating within a country must comply with the laws in that country. In some cases, usually involving multinati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Sector
The public sector, also called the state sector, is the part of the economy composed of both public services and public enterprises. Public sectors include the public goods and governmental services such as the military, law enforcement, infrastructure, public transit, public education, along with health care and those working for the government itself, such as elected officials. The public sector might provide services that a non-payer cannot be excluded from (such as street lighting), services which benefit all of society rather than just the individual who uses the service. Public enterprises, or state-owned enterprises, are self-financing commercial enterprises that are under public ownership which provide various private goods and services for sale and usually operate on a commercial basis. Organizations that are not part of the public sector are either part of the private sector or voluntary sector. The private sector is composed of the economic sectors that are intende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SUAV
A miniature UAV, small UAV (SUAV), or drone is an unmanned aerial vehicle small enough to be man-portable. Smallest UAVs are called micro air vehicle. Miniature UAVs range from micro air vehicles (MAVs) that can be carried by an infantryman, to man-portable UAVs that can be carried and launched like an infantry man-portable air-defense system. The term is usually applied to those used for military purposes. SUAVs have been given various definitions among national regulation authorities, often without including size precisions and differing about weight measurement specifications. Those definitions range from less than 2 kg for Canada to less than 25 kg for the United States. UE's SESAR prospective for the 2020 Air Traffic Management rules also proposed less than 25 kg, while UK's CAA stated less than 20 kg. MAVs and mesicopters The notion that small, even very small, UAVs might have practical uses arose in the early 1990s. In 1992, DARPA conducted a works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Real Time Kinematic
Real-time kinematic positioning (RTK) is the application of surveying to correct for common errors in current satellite navigation (GNSS) systems. It uses measurements of the phase of the signal's carrier wave in addition to the information content of the signal and relies on a single reference station or interpolated virtual station to provide real-time corrections, providing up to centimetre-level accuracy (see DGPS). With reference to GPS in particular, the system is commonly referred to as carrier-phase enhancement, or CPGPS. It has applications in land survey, hydrographic survey, and in unmanned aerial vehicle navigation. Background The distance between a satellite navigation receiver and a satellite can be calculated from the time it takes for a signal to travel from the satellite to the receiver. To calculate the delay, the receiver must align a pseudorandom binary sequence contained in the signal to an internally generated pseudorandom binary sequence. Since the satell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
