gps tracker with temperature sensor error causes, we use GPS positioning, will be affected by a variety of factors.
Factors related to GPS satellites that affect GPS positioning accuracy can be divided into the following four categories:
First, the United States Government, in its national interest, artificially reduces the accuracy of gps navigation for ordinary users by reducing the accuracy of broadcast ephemeris (technology) and adding high-frequency jitter (technology) to GPS reference signals.
Second, satellite ephemeris error: in gps positioning, the satellite orbit parameters required to calculate the position of the GPS satellite at a certain time are provided by various types of ephemeris, but no matter what type of ephemeris is used, the calculated satellite position will be different from its true position, which is the so-called ephemeris error.
Satellite clock difference: Satellite clock difference is the error between the clock face of the atomic clock installed on the GPS satellite and the GPS standard time.
The phase center deviation of the satellite signal transmitting antenna is the difference between the nominal phase center and the true phase center of the signal transmitting antenna on the GPS satellite.
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