ERROR AND INTEGRITY ASSESSMENT VIA DISPLACEMENT PREDICTION Russian patent published in 2023 - IPC G01S19/45 

FIELD: location indication error and integrity assessment.

SUBSTANCE: invention relates to location indication error and integrity assessment. The technical result is achieved by recording the position values (P-N, P-2, P-1) and calculating the receiver clock error by means of the satellite navigation system (SNS) discrete time measurement transit time, recording the first pseudodistance before the later moment of time by means of time discrete transit time measurement using SNS, extrapolating the receiver position values (P'₀) at a later moment of time based on a trajectory that replicates the receiver's previous path, extrapolating the receiver clock error at a later moment of time based on a number of clock errors calculated before the later moment of time, determining the distance (r'₀) between the extrapolated value (P'₀) of the receiver position and the SNS satellite position (S₀) at a later moment of time, at the same time, the satellite positioning capability quality level is achieved by forming a second pseudodistance based on the sum of the determined distance (r'₀) and the extrapolated clock error at a later moment of time and comparing the second pseudodistance with the first pseudodistance.

EFFECT: invention improves the location indication error and integrity assessment quality.

12 cl, 1 dwg