In this era of information, satellite navigation and positioning technology is developing rapidly and its application scope is becoming increasingly wide; At present, it has spread to various sectors of the national economy and deeply penetrated into people's daily lives. I believe many people associate GPS with words such as positioning and navigation. Indeed, GPS is currently the most widely used and widely used positioning and navigation system in the world. However, in recent years, China has developed the Beidou satellite navigation system, which is superior to the GPS of the United States; So how do we use the Beidou antenna system to locate our phones in daily life? Let me tell you:

The Beidou antenna navigation system consists of three parts: space segment, ground segment, and user segment. The space segment plan consists of 35 satellites, including 5 geostationary orbit satellites, 27 medium Earth orbit satellites, and 3 inclined synchronous orbit satellites.

The ground section consists of a main control station, injection station, and monitoring station. The main control station is used for system operation management and control, while the injection station is used to send signals to satellites for satellite control and management. The user segment refers to the user's terminal, and the receiver needs to capture and track the satellite's signals, and perform positioning calculations according to the data in a certain way.

The positioning principle of the first generation Beidou antenna belongs to active positioning, which requires the user terminal to actively send signals and has poor reliability. The latest second-generation Beidou antenna has adopted passive positioning technology similar to GPS. Users must receive at least 4 satellite signals for positioning.

Due to the larger number of satellites compared to the US GPS positioning system, the Beidou positioning system has stronger positioning signals and higher accuracy. Moreover, the Beidou antenna has a unique short message communication function, which can be used in many fields such as military, rescue, scientific research, etc. Can solve both "Where am I?" and "Where are you