What is global positioning systems?
A global positioning system is a system to help navigate where you are on the planet. It is guided by satellites and works in any type of weather.
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Answer . \nhttp://www.britannica.com/ebc/article-9365690?query=GPS&ct=\n. \nGlobal Positioning System (GPS) \nConcise Encyclopedia Article Page\n. \nPrecise satellite-ba…sed navigation and location system originally developed for U.S. military use.\n. \nGPS is a fleet of more than 24 communications satellites that transmit signals globally around the clock. With a GPS receiver, one can quickly and accurately determine the latitude, the longitude, and in most cases the altitude of a point on or above Earth's surface. A single GPS receiver can find its own position in seconds from GPS satellite signals to an accuracy of one metre; accuracy within one centimetre can be achieved with sophisticated military-specification receivers. This capability has reduced the cost of acquiring spatial data for making maps while increasing cartographic accuracy. Other applications include measuring the movement of polar ice sheets or even finding the best automobile route between given points.\n. \n. \nReview of handheld GPS'\n. \nhttp://www.epinions.com/GPS_Devices/search_string_~GPS/adv_search_~1
The global positioning system is the network of satellites that orbit earth that gives us GPS
Loss of battery.
It uses similar theory as in the old days when ships took bearings on known reference points to chart its current location. Instead of bearing angles, GPS uses distances from …the satellites (the satellites are constantly moving, (to keep up with the same spot on earth) but they 'know' where they are and transmit this data as well as a timing signal). If you have a signal from at least 4 different satellites, then your GPS can calculate its current position as well as get the correct current time. Rather than go into more detail here, I refer you to the related link, which I think does an excellent job of explaining it.
it was developed by the United States Department of Defense
The united states department of defense
A Global Positioning Device or GPS is a portable navigation system.It uses a satellite to give the user time and location informationno matter the conditions almost anywhere o…n Earth.
A Global Positioning System, or GPS for short, is useful for many travelers and everyday commuters. Plug in your destination, and it tells aloud the directions to your destina…tion. The newer types of GPS' have inserts that can tell you the nearest gas stations, restaurants, where you are, when you get there, rest stops, and more.
The design of the GPS itself is similar to ground-based radio navigation systems used in World War II. More inspiration for the GPS came in 1957, when the Soviets launched Spu…tnik. A group of American scientists were tracking the satellite when they realized that the frequency of the signal was stronger as it got closer and then decreased as it moved further away. They realized because they knew their location on the globe that they could pinpoint Sputnik by measuring its Doppler distortion. The first satellite navigational system was successfully tested in 1960. . Don't forget the 1942 contribution made by the actress Hedy Lammar with her invention of and the original patent for a spread spectrum radio communication system.
GPS provides position/location information. It is similar to that the phone company can track you phone location with the signal strength received by at least 2 cell phone tow…ers. If only one cell phone tower, the phone signal can only be interpreted as that the phone is somewhere in the circle of a known radius, assuming at ground level. With two cell phone towers, the phone signal can be narrowed to two possible locations. With three cell phone towers, the phone location is narrowed down to a small region, say within a city block. In the GPS, the cell phone towers are replaced by satellites. A hand-held GPS unit can use the signals from 4 satellites to calculate the coordinates (x,y,z) of the location and also how fast the unit is moving.
GPS is a precision navigation system developed for the US military and maintained by the US Air Force Space Command in El Segundo, CA. The initial specifications were written …in the early 1980s. The system consists of a constellation of at least 24 transmitting satellites, so that 12 will always be above the horizon anywhere in the world. Each satellite contains a precision atomic clock (periodically monitored and adjusted by the Air Force from the ground) and is assigned a long pseudorandom identification number, which it transmits along with a data block containing its clock time and various other status parameters. This system of satellites is available for both military and civilian use (however the military has priority and in a war can garble the civilian signal causing unpredictable random location errors in standard civilian GPS receivers). When a GPS receiver somewhere is able to pick up and identify 3 or 4 GPS satellites signals, it can use a method called triangulation to compute its coordinates on earth in latitude/longitude and if it has 4 signals the altitude. If the receiver gets more than 4 signals it can reduce the error in the calculation and improve the accuracy of the coordinates. I am deliberately leaving out the technical details of how this is done, as it is beyond the scope of this question. Such a GPS receiver is connected to a navigation computer of some kind, that translates the coordinates into something useful to the user (e.g. a moving map display showing his location and locations of nearby "points of interest", a targeting display showing the relative position of a site to be attacked). Some businesses (e.g. trucking companies) program the navigation computers in the GPS unit in their vehicles to log routes, speeds, etc. to keep track of their drivers, that they aren't taking unauthorized side trips or driving unsafely. However this has nothing to do with GPS and is not part of GPS, its just another use of the data made available by that system.
GPS is used to tell where the location of the reciever is. Each satalite sends out a coded BEEP at known intervals. Once the first BEEP is detected, then when the 2nd is recei…ved, there is a straight line bisecting the earth and continuing on in both directions out into space. This line is the only place where those two BEEPs intersect at a given time. It takes a minimum of 4 satalites to provide a full location. A 3rd satalite limits the location to one of 3 places (draw 3 circles that bisect each other, you are at one of those 3 locations). Having a prior idea of where you started allows the GPS unit to deduce where you are with 3 satalite signals. The 4th one cements the location (and altitude) as there is only one place where all 4 BEEPs intersect at a given time.
The United States Air Force was a primary player in the deployment of the first GPS satellites, ground stations, and user's receivers. Europe, Russia, and Japan have their …own geo-locating systems. Europe's is called, "Galileo", Russia's is called, "GLONASS", and Japan's is called, "MTSAT". Japan has launched a few satellites, and plans to launch more in 2014 and 2015.
Global positioning systems utilize satillites which transmit signals. There are receivers that recieve signals. More than one satillite is utilized in order to get a better l…ocation.
The GPS , short for global positioning system, is a world wide navigational system that utilizes microwave signals from a group of satellites that orbit the Earth and transmit… radio signals back to a GPS receiver.