One of the main requirements coming from different clients is to add an "anti-theft alarm" function to our gps trackers, which will trigger the loud BEEP BEEP alarm whenever the motorcyc...
In the absence of noise interference, comprehensive considerations such as ranging accuracy, signal bandwidth, required power, and different satellite recognition, the global positioning system us...
The global positioning system consists of the following three parts: space part (GPS satellite), ground monitoring part and user part. The GPS satellite can continuously broadcast the ranging sign...
The main body of the GPS satellite is cylindrical, and there are solar windsurfing on both sides, which can automatically set the sun. Solar batteries provide work for satellites. Each satellite i...
Test satellite Test satellite is also called prototype satellite. The satellite weighs 774kg (including 310kg fuel) and has a design life of 5 years. In order to meet the needs of solution and th...
The GPS global positioning system adopts a multi -star high -track ranging system, with a distance as a basic observation capacity, and a pseudo -distance measurement of the four satellites can be...
GPS is a passive satellite navigation system. In the passive ranging system, the user antenna only needs to receive navigation positioning signals from these satellites, so as to measure the dista...
1. Pseudo -distance measurement and pseudo -distance single -point positioning The pseudo -distance measurement is to determine the distance from the satellite to the receiver, that is, the meter...
GPS refers to a radio navigation positioning system that uses GPS satellites to provide information such as three -dimensional positions and three -dimensional speeds all over the weather around t...
The GPS global positioning system adopts a multi -star high -track ranging system, with a distance as a basic observation capacity, and a pseudo -distance measurement of the four satellites can be...