methods for reducing atmospheric errors in carrier phase and code measurements based on signals received from a plurality of satellites in a global navigation satellite system and for processing carrier code and phase measurements based on signals received from a plurality of satellites. satellites in a global navigation satellite system, and positioning or navigation system and device

摘要

GLOBAL, E, SYSTEM AND POSITIONING OR NAVIGATION DEVICE. A method for decreasing atmospheric errors in code and carrier phase measurements based on signals received from a plurality of satellites in a global navigation satellite system is exposed. A residual tropospheric delay and a plurality of residual ionospheric delays are modeled as states in a Kalman filter (block 340). The Kalman filter status update functions include at least one factor depending on the baseline distance, where the baseline distance is the distance between a reference receiver and a mobile receiver (block 340). A plurality of ambiguity values are modeled as states in the Kalman filter. The Kalman filter status update function for ambiguity states includes a dynamic noise factor (block 360 in Figure 3B). An estimated mobile receiver position is updated (block 370) according to the residual tropospheric delay (block 372), the plurality of residual ionospheric delays (block 374) and / or the plurality of ambiguity values (block 376).