FIELD: radio engineering.
SUBSTANCE: used in the creation and upgrading of devices for monitoring the integrity of the navigation field of Global Navigation Satellite Systems (GNSS) in terms of monitoring the reliability of information received by the Navigation User Equipment (NUE) of the aircraft (AC). In the absence of the received supplementary information message (SIM) in the allowable time interval at the control point in time, the determination of primary-reliable pairs (PRP) of the GNSS is carried out by comparing the values of the AC spatial coordinates, formed using the data coming from GNSS satellite signals. If PRP is available, the information received by NUE from GNSS satellites related to PRP is recognized as reliable, and in relation to GNSS not related to PRP, additional control of the reliability of information received from their satellites is carried out by comparing the values of the AC spatial coordinates formed using satellite signals received from the GNSS data and the control GNSS related to the PRP. Reliability control of the information received by the NUE using the predicted estimate of the distance between the aircraft and the local control and correction station is carried out only in the case of the simultaneous absence of the received SIM in the allowable time interval and the GNSS PRP at the control point in time. This allows, in the absence of a received SIM and the presence of a GNSS PRP, to exclude errors in the control of the reliability of the information received by the NUE, caused by an increase in the duration of the absence of the received SIM and, as a result, leads to an increase in the probability of correct control of the reliability of the information received by the NUE as a whole.
EFFECT: increased probability of correct control of the reliability of information received by NUE.
1 cl, 1 dwg
