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...
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...
Since China's first man-made satellite was put into orbit in 1970, 30 different satellites have been launched, creating favorable conditions for the space survey work of New China. In the earl...
For car users, the GPS monitoring system has powerful anti-theft and navigation functions. In the United States and Western Europe, it has been popular for a long time. Cars, trucks and buses are ...
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