300 likes | 679 Views
Global Positioning System. Student : 49814014 Min-Yin Huang 49814030 Hong-Wei Du. Teacher : Ru -Li Lin. Department of Mechanical Engineering Southern Taiwan University of Science and Technology. Title. GPS introduced GPS positioning sources GPS positioning method of classification
E N D
Global Positioning System Student: 49814014Min-YinHuang 49814030Hong-WeiDu Teacher:Ru-Li Lin Department of Mechanical Engineering Southern Taiwan University of Science and Technology
Title • GPS introduced • GPS positioning sources • GPS positioning method of classification • GPS error sources • GPS systems architecture • GPS satellite signals • GPS market demand • GPS range of applications • Supplementary information • References
GPS introduced English full name:NACSTARGPS(Navigation Satellite with Time And Ranging Global Positioning System) the U.S. Department of Defense for military purposes by developed System
1. Twice in spatial orientation S1: distance the receiver 11000 miles. S2: distance the receiver 12000 miles S1 and S2 to the center, receiving distance radius to form a ball at the intersection of the two goals for the intersection of the circle.
The accuracy improved three-dimensional positioning. Compared to the two-dimensional positioning altitude, into a three-dimensional two-dimensional least four satellite signals received. 2. Three-dimensional positioning
GPS positioning GPS positioning method of classification Measuring Navigation Stand-alone Double machine Stand-alone Double machine After-treatment Immediate Static state Stop and Go RTK DGPS Rapid Static Dynamic
GPS error sources Orbit error Satellite clock error Selection bias satellite deviation observing the deviation observations deviation Ionospheric Propagation delay Tropospheric Propagation delay Receiver error
The deviation between the receivers clock with GPS clock. 2.Observationdeviation
Outer space Satellite ephemeris distance GPS systems architecture Receptor Ground control station
GPS satellite signals C/A Code P Code L1 Contains three components: a carrier (L1, L2) of the measuring Distance code (C / A code, P code), the navigation information (D code). L2 P Code D Code
GPS satellite signals L1 and l2 two different high-frequency carrier purpose cancellation . In addition to the measurement of ionospheric effects caused by the delay error ionospheric L1 L2
C/A Code SA (Selective Availability) C / A code is clearly an open, available to users around the world are free to use. C / A code is generally modulated only on the L1 carrier, it is impossible to accurately eliminate the ionospheric delay. The United States to prevent the adversary using a global positioning system to jeopardize the national security of the United States. The technology is mainly used to artificially added in the satellite broadcast ephemeris errors and satellite clock frequency to generate fast jitter, thereby reducing the C / A code single-point real-time positioning accuracy
Anti STILL effect (A-S) AS effect, P code plus plus code translation of W into Y Code; only the U.S. troops, allied forces, as well as specifically authorized to use.
GPS range of applications Ground application Sea applications Aerial application Space Applications Leisure applications Military applications
The optional GPS course, is their own use basis Use of the environment : Supplementary information Purchase of GPS
Purchase of GPS The main parts of the GPS chip is responsible for telling mapping software now the location of the major hardware, in general, in addition to chip also includes a template with the receiving antenna, GPS module can be combined into a usable
Purchase of GPS Mountaineer: Waterproof Shock Screen is legible, size, weight Battery sustainability
Purchase of GPS Car Dependence on Map Maneuver Shock Recommended Configuration:Car navigation dedicated machine, PDA + GPS, PC + GPS
Purchase of GPS Navigation, Aviation Map Altimeter, temperature sensor Recommended Configuration: PDA + GPS, PC + GPS
References http://www.google.com.tw/imghp?hl=zh-TW&tab=ii http://www.garmin.com.tw/aboutgps/glossary.html#DF http://www.nasa.gov/ http://www.gps.moi.gov.tw/SSCenter/Introduce/IntroducePage.aspx?Page=GPS6 https://www.google.com.tw/search?hl=zh-TW&site=imghp&tbm=isch&source=hp&biw=1920&bih=955&q=%E8%BB%8AGPS&oq=%E8%BB%8AGPS&gs_l=img.12..0i24l2.1397.43675.0.45266.15.7.5.3.4.0.123.379.6j1.7.0...0.0...1ac.1j4.14.img.0du5hapBhBI#imgrc=IjkM46b1HVyUcM%3A%3BoBrC7Xv--TjhMM%3Bhttp%253A%252F%252Fimg.article.pchome.net%252F%252F00%252F01%252F26%252F85%252F74636_dka%255B1%255D.jpg%3Bhttp%253A%252F%252Farticle.pchome.net%252Fcontent-9991.html%3B308%3B256 https://www.google.com.tw/search?hl=zh-TW&biw=1920&bih=955&site=imghp&tbm=isch&sa=1&q=%E6%BB%91%E9%BC%A0GPS&oq=%E6%BB%91%E9%BC%A0GPS&gs_l=img.3...74819.75596.0.75904.3.3.0.0.0.0.38.109.3.3.0...0.0...1c.4.14.img.7NaDAwqv8kM#imgrc=s-0HoOPWvXfr7M%3A%3BHRR-E9IiHTGtFM%3Bhttp%253A%252F%252Fbuy.yahoo.com.tw%252Fwebservice%252Fgdimage.ashx%253Fid%253D3900619%2526s%253D200%3Bhttp%253A%252F%252Fbuy.yahoo.com.tw%252Fgdsale%252Fgdsale.asp%253Fgdid%253D3900619%3B250%3B250https://www.google.com.tw/search?hl=zh-TW&biw=1920&bih=955&site=imghp&tbm=isch&sa=1&q=%E8%BB%8A%E7%94%A8GPS&oq=%E8%BB%8A%E7%94%A8GPS&gs_l=img.3..0i24l9.14656.22113.0.23453.11.9.1.1.1.0.48.396.9.9.0...0.0...1c.1j4.14.img.0cBSQ1HSzKI#imgrc=eD9WHe3WTvqMDM%3A%3BzhxcFq5utVuIPM%3Bhttp%253A%252F%252Fcaraudio.webcom8.com%252Fseo-caraudio%252Fuploads%252Fimage%252Fg1.jpg%3Bhttp%253A%252F%252Fcaraudio.webcom8.com%252F%3B400%3B360 https://www.google.com/search?hl=zh-TW&q=%E6%99%B6%E7%89%87&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=Wb6ZUa7iCoeIlAWTpoDwBA&biw=1920&bih=955&sei=W76ZUaPwEYeYkQX864DACg https://www.google.com/search?um=1&hl=zh-TW&biw=1920&bih=955&tbm=isch&sa=1&q=%E7%99%BB%E5%B1%B1&oq=%E7%99%BB%E5%B1%B1&gs_l=img.3..0l10.34178.35103.0.35463.3.3.0.0.0.0.88.174.3.3.0...0.0...1c.4.14.img.UurGuBpG3BQ https://www.google.com/search?hl=zh-TW&q=%E5%9C%B0%E7%90%83&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=kL6ZUZeCJ5GtkgW844Eo&biw=1920&bih=955&sei=lL6ZUY_OLMWqkgXO8YA4 https://www.google.com/search?um=1&hl=zh-TW&biw=1920&bih=955&tbm=isch&sa=1&q=%E8%A1%9B%E6%98%9F&oq=%E8%A1%9B%E6%98%9F&gs_l=img.12..0l10.4882.5036.0.5566.2.2.0.0.0.0.46.85.2.2.0...0.0...1c.1.14.img.3_Z6ZPkK9k8