25*25mm GLONASS GPS Navigation Tracker Antenna

 Introduction:The basic principle of Inside GPS Antenna system positioning is to use ranging intersection to determine the point. The time when a satellite signal propagates to the receiver can only determine the distance from the satellite to the receiver, but cannot determine the direction of the receiver relative to the satellite. In three-dimensional space, the possible positions of the GPS Antenna for Car receiver form a spherical surface;

When the distance of the two satellites is measured, the possible position of the receiver is determined on the circle formed by the intersection of the two spheres; when the distance of the third satellite is obtained, the sphere intersects the circle to obtain two possible points; the fourth satellites are used to determine the exact position of the receiver. Therefore, if the receiver can obtain the signals of four GPS Antenna Fakra satellites, it can perform positioning; when the number of satellites that receive signals is more than four, four satellites can be preferred to calculate the position.