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GPS Navigators – What Are GPS Navigation Systems?
Posted: Apr 07, 2017
GPS satellites orbit the earth in a precise path twice a day. Every satellite transmits a one-of-a-kind signal with orbital parameters to enable GPS navigators and devices to decode and compute its precise location. The receiver relies on that trilateration and information to determine the satellite’s exact location, and it measures the distance to every satellite by referring to the amount of time it will take to receive the transmitted signal. Distance measurements from satellites will enable the receiver to determine your position and show it on a screen. GPS navigation systems are helpful in measuring your running or walking routes, wayfinding, mapping a path or a route, or guiding you through your adventure into the unknown.
To track movement and calculate your latitude and longitude (2-D position), the receiver of the GPS navigator must be locked on to a signal of at least three satellites. Four or more satellites will enable the receiver find your 3-D position, which includes the altitude. The GPS will typically track eight or more satellites, but that will depend on your location and the time. Car GPS navigators can calculate other data, including your trip distance, speed, distance to your destination, sunset, and sunrise.
High-quality car GPS navigators are extremely accurate due to a parallel multi-channel design. High-end receivers are able to lock onto satellites as soon as they are switched on, and they are able to maintain the tracking lock, even if you pass through dense forests, mountains, or navigating through an urban setting with a lot of tall buildings. However, keep in mind that some atmospheric factors and other sources for errors can affect the accuracy of the GPS receiver. Some manufacturers of GPS navigation systems include special features like WAAS (wide area augmentation system) to enhance accuracy.
About the Author:
Amrit Mirpuri was born in Manila, Philippines. He attended the University of Central Florida and gained a degree in Business Management. He is presently the C.E.O. of L.A. Group of Companies based in the Philippines which consists of L.A. Car Accessories Store and L.A Window films.
Amrit Mirpuri was born in Manila, Philippines. He is presently the C.E.O. of L.A. Group of Companies based in the Philippines which consists of L.A. Car Accessories Store.