How GPS * Works * G lobal P ositioning S ystemSlide 2
How GPS Works The Global Positioning System (GPS) comprises of 24 Earth-circling satellites. These satellites permit any individual who possesses a GPS collector to decide his or her exact longitude, scope and height anyplace on the planetSlide 3
GPS ConstellationSlide 4
Triangulation (proceeded) If you know you are 625 miles from Boise, you could be anyplace on this circle.Slide 6
Triangulation (proceeded) If you know you are 625 miles from Boise and 690 miles from Minneapolis, then you know you should be at one of two focuses.Slide 7
Triangulation (proceeded) With three known focuses, you can discover that your careful area is some place close Denver, Colorado!Slide 8
3-D TriangulationSlide 9
3-D TriangulationSlide 10
3-D TriangulationSlide 11
3-D TriangulationSlide 12
3-D TriangulationSlide 13
3-D TriangulationSlide 14
Measuring Distance GPS satellites convey radio flags that your GPS beneficiary can recognize.Slide 15
Measuring Time Measuring the time would be simple in the event that you knew precisely what time the sign left the satellite and precisely what time it touched base at your recipient, and tackling this issue is vital to the Global Positioning System.Slide 16
Measuring Time (proceeded with) The best way to actualize a framework like this would require a level of precision just found in nuclear timekeepers .Slide 17
Measuring Time (proceeded with) The Global Positioning System has an extremely successful answer for this issue - a GPS beneficiary contains no nuclear clock by any stretch of the imagination. It has a typical quartz clock .Slide 18
Finding the Satellites The other significant part of GPS estimations is the learning of where the satellites are.Slide 19
Cool GPS Facts The principal GPS satellite was propelled in 1978. The present framework is made out of second era GPS satellites, called Block II. The primary Block II satellite was dispatched in 1989.Slide 20
Cool GPS Facts (proceeded with) The Defense Department proclaimed GPS completely operational in 1995. At the point when the framework was initially presented, erroneous conclusions were modified into GPS transmissions to restrict the exactness of non-military GPS collectors. This operation was crossed out in May 2000. There are 24 GPS satellites in circle as of nowSlide 21
GPS Accuracy Before and After SA Removal May 1, 2000 May 3, 2000Slide 22
Cool GPS Facts (proceeded with) The 24 satellites cost an expected $12 billion to assemble and dispatch. Every satellite weighs around 1,735 lb (787 kg). The satellites are in circle around 12,500 mi (20,000 km) over the Earth.Slide 23
Cool GPS Facts (proceeded with) A satellite takes 12 hours to circle the Earth once. The Russians have a framework indistinguishable to the U.S. framework called GLONASS.Slide 24
What GPS Can Do The Global Positioning System, a gathering of 24 Earth-circling satellites, has various conceivable applications, traversing over a few regions of society.Slide 25
What GPS Can Do (proceeded with) The fundamental capacity of a GPS beneficiary is to make sense of its area on Earth.Slide 26
GPS Basics One of the essential attributes of GPS collectors is that they discover your area just when you are outside.Slide 27
GPS Basics (proceeded with) The least complex GPS recipient would give you simply the directions of your area on Earth in scope, longitude and height.Slide 28
GPS Basics (proceeded) Even low-end beneficiaries have some kind of electronic guide put away in memory.Slide 29
GPS in Motion A standard GPS beneficiary won\'t just place you on a guide at a specific area, however will likewise follow your way over a guide as you move.Slide 30
GPS in Motion (proceeded with) How far you\'ve voyage (odometer) How long you\'ve been voyaging Your present rate (speedometer) Your normal speed A "breadcrumb" trail demonstrating you precisely where you have gone on the guide The evaluated time of landing in your destination in the event that you kept up your present paceSlide 31
GPS User Input Most recipients have a specific measure of memory accessible for you to store your own particular route information.Slide 32
GPS User Input (proceeded with) The fundamental unit of client info is the waypoint . A waypoint is essentially the directions for a specific area. You can spare this in your recipient\'s memory in two ways: You can advise the beneficiary to record its directions when you are at that area. You can discover the area on a guide (the interior guide or another) and enter its directions as a waypoint.Slide 33
GPS User Input (proceeded with) Examples of waypoints: Good campgrounds Favorite street side shops Excellent angling spots Scenic ignores Where you exited your autoSlide 34
GPS User Input (proceeded with) You can likewise consolidate a progression of various waypoints to frame a course . One approach to utilize this capacity is to occasionally record waypoints as you make an outing with the goal that you can backtrack, or take after the same course again on another trek.Slide 35
Computer Connections Receivers with course capacities will give you a chance to spare a specific number of waypoints to memory so you can utilize them over and over. On the off chance that the beneficiary has an information port , you can likewise download your courses to a PC, which has a great deal more stockpiling memory, and after that transfer them again when you plan to take after those courses.Slide 36
Computer Connections (proceeded with) Some late collectors let you download point by point maps of a zone into the GPS, or supply definite maps with module map cartridges. These maps can give you road level point of interest in urban areas and the beneficiary may even give driving headings as you drive!Slide 37
Important Features for a Hiking GPS "Map" screen Water proofness Long battery life Built in Maps Route ability Waypoints Multiple Datum capacity is quite standardSlide 38
Important Features for a Hiking GPS (proceeded with) Fit pleasantly in your pocket and lightweight Bearing to next waypoint Screen Size 12 channel parallel collector frameworkSlide 39
Non-Essential Features for a Hiking GPS at least 8 megs of guide memory Rotatable screen UTM readout might be a thought for some Topo Maps transferred into your GPS External intensified reception apparatusSlide 40
See This Web Site for More Info For Hiking GPS Recommendations: http://gpsinformation.us/primary/gpshiking.htm For Auto GPS Recommendations: http://gpsinformation.us/fundamental/gpsauto.htmSlide 41
W ide A rea An ugmentation S ystem WAAS depends on a system of roughly 25 ground reference stations that covers an expansive administration region.Slide 42
WAAS wide region ground reference stations (WRSs) wide region expert station (WMS) ground uplink framework (GUS)Slide 43
WAAS The WAAS will enhance fundamental GPS exactness to around 7 meters vertically and evenly
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