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Pushbroom Sensor
A push broom scanner, also known as an along-track scanner, is a device for obtaining images with spectroscopic sensors. The scanners are regularly used for passive remote sensing from space, and in spectral analysis on production lines, for example with near-infrared spectroscopy used to identify contaminated food and feed. The moving scanner line in a traditional photocopier (or a scanner or facsimile machine) is also a familiar, everyday example of a push broom scanner. Push broom scanners and the whisk broom scanners variant (also known as across-track scanners) are often contrasted with staring arrays (such as in a digital camera), which image objects without scanning, and are more familiar to most people. In orbital push broom sensors, a line of sensors arranged perpendicular to the flight direction of the spacecraft is used. Different areas of the surface are imaged as the spacecraft flies forward. A push broom scanner can gather more light than a whisk broom scanner beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Push Broom Scanner Visualization
Push may refer to: * A type of force applied to an object Music * Mike Dierickx (born 1973), a Belgian producer also known as Push Albums * Push (Bros album), ''Push'' (Bros album), 1988 * Push (Gruntruck album), ''Push'' (Gruntruck album), 1992 * Push (Jacky Terrasson album), ''Push'' (Jacky Terrasson album), 2010 * Push (Sextile album), ''Push'' (Sextile album), 2023 Songs * Push (Enrique Iglesias song), "Push" (Enrique Iglesias song), 2008 * Push (Avril Lavigne song), "Push" (Avril Lavigne song), 2011 * Push (Lenny Kravitz song), "Push" (Lenny Kravitz song), 2011 * Push (Matchbox Twenty song), "Push" (Matchbox Twenty song), 1997 * Push (Moist song), "Push" (Moist song), 1994 * Push (Pharoahe Monch song), "Push" (Pharoahe Monch song), 2006 * "Push", by Tisha Campbell and Vanilla Ice on Campbell's 1993 album ''Tisha (album), Tisha'' * "Push", by The Cure on the 1985 album ''The Head on the Door'' * "Push", by Dio on the 2002 album ''Killing the Dragon'' * "Push", by Nick Jonas o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States's civil list of government space agencies, space program, aeronautics research and outer space, space research. National Aeronautics and Space Act, Established in 1958, it succeeded the National Advisory Committee for Aeronautics (NACA) to give the American space development effort a distinct civilian orientation, emphasizing peaceful applications in space science. It has since led most of America's space exploration programs, including Project Mercury, Project Gemini, the 1968–1972 Apollo program missions, the Skylab space station, and the Space Shuttle. Currently, NASA supports the International Space Station (ISS) along with the Commercial Crew Program and oversees the development of the Orion (spacecraft), Orion spacecraft and the Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Whisk Broom Scanner
A whisk broom or spotlight sensor, also known as an across-track scanner, is a technology for obtaining satellite images with optical cameras. It is used for passive remote sensing from space. In a whisk broom sensor, a mirror scans across the satellite’s path (ground track), reflecting light into a single detector which collects data one pixel at a time. The moving parts make this type of sensor expensive and more prone to wearing out, such as in the Landsat 7. Whisk broom scanners have the effect of stopping the scan, and focusing the detector on one part of the swath width. Because the detector is only focused on a subsection of the full swath at any time, it typically has a higher resolution than a push broom design for the same size of scan swath. All sensors aboard the Landsat series of satellites used the whisk broom design until Landsat 8 Landsat 8 is an American Earth observation satellite launched on 11 February 2013. It is the eighth satellite in the Landsat p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
