global positioning system student : 49814014 min-yin huang 49814030 hong-wei du teacher : ru-li...
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Global Positioning SystemStudent : 49814014 Min-Yin Huang 49814030 Hong-Wei Du
Teacher : Ru-Li LinDepartment of Mechanical Engineering Southern Taiwan University of Science
and Technology
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TitleGPS introducedGPS positioning sourcesGPS positioning method of classificationGPS error sourcesGPS systems architecture GPS satellite signals GPS market demandGPS range of applicationsSupplementary informationReferences
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GPS introducedEnglish full name : NACSTAR GPS (Navigation Satellite with Time And Ranging Global Positioning System)
the U.S. Department of Defense for military purposes by developed System
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GPS positioning sources
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GPS positioning method of classification
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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.
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2. Three-dimensional positioningThe accuracy improved three-dimensional positioning. Compared to the two-dimensional positioning altitude, into a three-dimensional two-dimensional least four satellite signals received.
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GPS positioning method of classification
Measuring Navigation
Stand-aloneDouble
machineStand-alone
Double machine
After-treatment
Immediate
Static state
Dynamic
Stop and Go
Rapid Static
RTK DGPS
GPS positioning
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GPS error sources
1. satellite deviation
2. observing the deviation
3. observations deviation
Orbit error
Satellite clock error
Selection bias
IonosphericPropagation delay
TroposphericPropagation delay
Receiver error
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1.Satellite deviation
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2.Observation deviationThe deviation between the receivers clock with GPS clock.
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3. With observations related to the deviation
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GPS systems architecture
Receptor
Outer spaceSatellite ephemeris
distance
Ground control station
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GPS satellite signals
Contains three components: a carrier (L1, L2) of the measuring Distance code (C / A code, P code), the navigation information (D code).
C/A CodeP Code
D Code
P Code
L1
L2
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GPS satellite signals
ionospheric
L1 and l2 two different high-frequency carrier purpose cancellation . In addition to the measurement of ionospheric effects caused by the delay error
L1
L2
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C/A CodeC / 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.SA (Selective Availability)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
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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.
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GPS market demand
52%
11%
23%
5% 9%
2004
69%
11%
13%
3%4%
2009 Personal Application
Professional applications
Individual leisure
Chase in vehicles and goods
Car navi-gation
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GPS range of applications
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Purchase of GPS
Supplementary information
The optional GPS course, is their own use basis Use of the environment :
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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
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Purchase of GPSMountaineer :1. Waterproof2. Shock3. Screen is legible, size, weight4. Battery sustainability
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Car1. Dependence on Map2. Maneuver3. Shock
Purchase of GPS
Recommended Configuration :Car navigation dedicated machine,
PDA + GPS, PC + GPS
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Purchase of GPSNavigation, Aviation1. Map2. Altimeter, temperature sensor
Recommended Configuration : PDA + GPS, PC + GPS
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Referenceshttp://www.google.com.tw/imghp?hl=zh-TW&tab=ii
http://www.garmin.com.tw/aboutgps/glossary.html#DFhttp://www.nasa.gov/http://www.gps.moi.gov.tw/SSCenter/Introduce/IntroducePage.aspx?Page=GPS6https://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%3B256https://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%3B360https://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=W76ZUaPwEYeYkQX864DACghttps://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.UurGuBpG3BQhttps://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_OLMWqkgXO8YA4https://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
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報告結束,謝謝聆聽