The GPS Navigation System
What is GPS? GPS stands for Global Positioning System, which is a satellite-based system. It comprises a network of 24 powerful satellites. They are 11,000 nautical miles over there in space orbiting 6 different paths.
These satellites are always moving, thus making two orbits around our planet in 24 hours, give or take. They travel at a lightning fast speed of 2.6KM/s. That’s quite fast.
The GPS satellites are known as NAVSTAR satellites. In case you don’t know, the very first satellite started its operations in 1978. It was designed by the US Department of Defense (DoD). At first, this technology was not launched for the use of common people. Its use was limited to the US military.
In 1980, common people got access to this technology, and gradually it became common in cell phones, boats, cars and in HUD glasses. Today, we benefit from GPS in more ways than one.
A GPS navigation system consists of a receiver and other A/V parts, and these parts perform a specific function. You can find them in today’s cars and mobile phone devices as well.
As said earlier, the global positioning system or GPS works with 24 satellites to locate a GPS receiver on Earth.
How does a GPS receiver helps you know where you are? A GPS receiver gets the location information by connecting to 3 to 4 satellites. This information may include the satellite position and the transmission time. Using this signal, you can find out where you are at that point in time. For altitude, the receiver needs to connect to more satellites.
GPS is a powerful technology and works well no matter where a device may be. Moreover, the accuracy of a GPS device is based on the number of satellites it connects to and the technology the receiver makes use of.
In short, GPS offers a lot of benefits that make our lives more convenient.