Everyone has ever heard about the gps update, but what does this system consist of? The global positioning system was designed to contribute to the location, it is used in civil, commercial and scientific research.
Its creation dates from the year 1973, being modified and improved until, in 1995, the road to update gps was completed. It is at this moment, that begins to give data of position, speed and time, from any place, time and weather condition.
Also known as Navstar GPS, it achieves a location with an accuracy of between one hundred meters and centimeters, in most cases. To increase the yield you have to invest in it.
It has three elements, a spatial one, which comprises a network of 24 satellites, distributed over more than 20,000 kilometers, having 21 satellites that are in charge of the navigation and 3 of backup. The 55th configuration, with respect to Ecuador, allows receiving signals from 8 satellites throughout the day, to specify the position, speed and time of the user.
The second element is the one of control, constituted by a station in Colorado Springs, five that realize tracking and three antennas in the Earth. Its function is based on following the position of the satellites, with the purpose that when the stations generate data, they are sent in the form of navigation messages to the satellite.
The third component is the receivers, the radio waves sent by the satellites in frequency L1 to 1.6 GHz and L2 to 1.2 GHz and the pseudo-random codes, known as the protected code in the previous frequencies and with wavelength 30 m and the thick code, in frequency L1, with wavelength 300 m.
They are governed by atomic clocks, placed on the satellites that send the code. In addition, radio waves are used to determine the accuracy. The absolute positioning is measured by the user’s receiver and the relative is calculated with the codes.
Systems like tomtom gps and Garmin gps are being used successfully, more information on the page https://www.gps-update.com/en/