How does GPS work?
As the Name suggests, uses the positioning system signals from the GPS satellite, which circles in the orbit of the earth. Overall, the System represents an Interaction of the satellite in space, the GPS-enabled device of the user, as well as receiving antennae on the earth. The resulting position determination is simple: The satellites that orbit the earth, from radiation-resistant your current Position by using radio signals. These signals come to a receiver on earth, which is located for example in a Smartphone.
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The receiver needs at least signals from three satellites to be able to the current location on the earth can be determined. The location is then obtained from the calculation of the Position of the satellite and the time the signals or the radio waves from the satellite to the receiver. A fourth satellite allows to verify the own Position of the receiver, and to determine clearly.
How accurate is GPS?
Lump-sum, one can say: The more GPS signals receives a powerful device, the more accurate the location can be determined. The receiver needs in General to an antenna, a quartz watch as well as a memory and a processor, the GPS signals are processed by. As already mentioned, at least the signals of three satellites is necessary to have a location to perform. A fourth Signal specifying the location on the basis of the determination of the time. In the civilian use of Smartphones and co. the GPS works signals receiver now with up to twelve satellites. Depending on whether the device also has GLONASS, Galileo or Beidou, the theoretical visibility and even more radio waves can be received.
Under the open sky, the sight is contact between the satellite and the receiver is usually not a Problem, if no bad weather front. The GPS accuracy may, however, be due to external circumstances disturbed. Will affect the broadcasting of the radio waves or the reception by a variety of factors, including satellite and clock errors. The result is often strong deviations from the exact location.
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you can Also use concrete or stone walls, the Signal is only weak, so that, among other things, in tunnels, GPS-receiver, the connection to the satellites can’t keep. To be able to make up for mistakes, there are correction services, such as the European EGNOS. This is satellite, do not change their Position relative to the earth and constantly correction signals to the earth. Each GPS Chip receives this data by default.
Depending on the application and the device, the location accuracy is different by far. GPS receivers in Smartphones, for example, an accuracy of about five to fifteen meters, which is sufficient for conventional Navigation. In many Professions, the exact determination of a Position is, however, fundamentally, so that the accuracy is here of inches.
GPS: The history
GPS – short for Global Positioning System, or German: Global positioning system – is a service that is not to be used generally for Navigation, but specifically for the determination of positions. This is done with the help of satellites, circling high above the earth. GPS is mostly used as a synonym as a term for a location determination. In fact, it is, however, that since the 1970s by the US military developed the System NAVSTAR GPS. In the following years, it was becoming more and more important, is considered since the mid-1990s as a fully functional and, consequently, was opened for civilian use. Thus, it is not nowadays only in the military can be used, but to be found on many everyday devices.
in addition to the standard GPS, there are also Alternatives from other countries. Russia 2012 opened GLONASS the access to the own System. From the European side, Galileo originates, while in China the satellite system Beidou. Depending on the type of recipient devices can receive not only GPS, but also the signals of the above-mentioned other satellite systems.
areas of use of GPS Since GPS has been made since about 1995 publicly available, the satellite-based System, in the meantime, many areas of application far beyond the military area. Many everyday devices, such as Smartphones, Fitness Tracker, or cars are equipped with GPS-enabled receivers. Also in photography, in Sport, or the Maritime GPS is a part of indispensable application area. The tracking system makes the previously widely-used city and country maps largely obsolete, especially as more and more virtual map services like Google Maps or Here to offer your cards offline, and mobile Internet is not strictly necessary for use, at least in the Smartphone area.
In comparison to maps and GPS systems do not provide the value that you provide additional information than just the Route to the destination. On request in the nearby Hotels, Restaurants, or Bush’s old job ads. GPS on the phone On the phone requires GPS many Apps. On the one hand, a mobile phone can thus be, for example, location to perform, for example, if the mobile phone or even a Person is gone. Also some of the mobile game benefits from GPS, worth noting pokemon Go or Harry Potter: Wizards Unite here. Dating Apps like Tinder or Date ideas also work on the Basis of GPS data.
in addition, there are also numerous Apps that require a location permission, without an apparent reason. It can do no harm to keep the corrections in mind and critically. For many users of the site are just data, and the resulting motion profile sensitive data.
How to enter GPS coordinates?
Every place in the world is to be determined on the basis of exact coordinates. They are divided into a longitude and a latitude. The information can vary, as can be seen from the coordinates of the Cologne Cathedral see:
- degrees, minutes, and seconds (DMS): N 50° 56′ 28.6008 E 6° 57′ 29.8116
- degrees and decimal minutes (GMM): N 50° 56.476680 E 6° 57.496860
- decimal degrees: (DG): N 50.941278 E 6.958281
you have the coordinates of a location on the Hand, you have to enter both iOS as well as Android with a map service as an example, Google Maps is here – in the search bar. You want to determine the Position, you have to keep the place in the App until a red Label appears in the place marked. Then, the coordinates are displayed in the search bar. Helpful information on how to determine GPS coordinates and how to enter them in a targeted, Google Maps. GPS location fake In connection with GPS and the location you stumble again and again over the question of whether GPS could falsify data. Running often under the slogan of “fake GPS”. What are the reasons for this step are also always want to go: It is an App, you need to have the GPS to confuse the Signal, and to generate a different site. Fake GPS Apps, with the relevant name to be found both in the Google Play Store and Apple’s App Store.
This article was written by Simone Warnke
*The post “What is GPS? All of the information to the popular tracking system” will be released by Inside Digital. Contact with the executives here.
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