Understanding GPS Technology
Understanding GPS Technology
By Jeffrey Meier
Do you know what GPS is? It stands for Global Positioning System. It is a satellite based navigation system. This system consists of
twenty four satellites. If you really want to truly understand how GPS works, you may want to go back to the reason it was first
Did you know that GPS was first created by the United States Department of Defense back in the 1980's?
The system was to be used for military operations. Over time, the Defense Department realized this Global Positioning System was much more valuable and could do much more than they first believed.
Soon it was allowed to be used by civilians. Plus, people could use it without paying for a subscription fee.
GPS can work in any weather condition. It also can be read anywhere in the world, twenty four hours a day.
How do these satellites actually work?
Twice a day they orbit the earth. As they are orbiting, they can locate where each GPS device is being used. This means that the satellites can actually find the location of the device anywhere in the world. This allows people to find other people, as well as other objects that are lost or stolen.
The satellite is able to read the GPS's signal. That signal can be compared by the time the GPS receiver sends an additional return signal. This time difference is then read and compared between the distance of the GPS and the satellite. This gives a distance measurement. Then more distance measurements are read from the other satellites and the GPS is located.
Many objects have GPS capabilities. Some of the most popular of these being: automobiles, boats, trucks, etc. Plus, GPS devices can be built into such items as: cell phones, laptop computers, stereo equipment etc.
Some people will actually buy what is referred to as GPS tracking devices which are used for the sole purpose of tracking a person. These products are often placed on the automobiles of suspected cheating spouses or the automobiles of teenagers, when parents are concerned about their safety.
Many parents have even bought some nifty GPS tracking devices that can even allow them to know what speed their teenager is driving. This is especially nice for the parent of a newly licensed driver.
New and well equipped laptop computers are generally always equipped with a GPS tracking device. The device can be triggered once the
laptop is reported stolen. Then when the stolen laptop is placed online the GPS is able to track the location of the stolen merchandise.
This is a great insurance to many business people that stores important information on their computers.
As the computer and electronic world keeps growing, so will the use of Global Positioning Systems. It is evitable that we will need these systems not only to monitor our belongings, but to help keep our world a little safer. For these reasons we all should, at least have a basic understanding of GPS's and understand that they can benefit us more than help predict our weather.
Jeffrey Meier of Jam727 Enterprises at http://www.Jam727.com offers information articles on a wide variety of subjects including GPS Information at http://www.jam727.com/gps_system.htm
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