FIELD: radio engineering.
SUBSTANCE: invention can be used in the creation and modernization of devices for determining the spatial coordinates of an aircraft (AC). In the claimed method, before monitoring the operability of the Navigation User Equipment (NUE) of the global navigation satellite system, the presence of the received supplementary information message (SIM) is checked in a given time interval. If, as a result, a decision is formed on the presence of an accepted SIM, the control of the NUE operability is carried out using a local control and correction station (LCCS). If a decision has been made that the NUE is inoperable, then the final values of the AC spatial coordinates are determined based on the complex processing of information from the inertial navigation system (INS) and LCCS. If, as a result of monitoring the NUE operability using the LCCS, a decision is made that the NUE is operational, then the final values of the AC spatial coordinates are determined based on the complex processing of information from the INS, LCCS and NUE. If at the stage of checking the presence of the received SIM, a decision is made about the absence of the received SIM in a given time interval, then the control of the NUE operability is carried out using the INS. If, as a result of this control, a decision is made that the NUE is inoperable, then the values of the AC spatial coordinates generated by the INS are taken as the final values of the AC spatial coordinates. If at the stage of monitoring the NUE operability using the INS, a decision is made that the NUE is operational, then the final values of the AC spatial coordinates are determined based on the complex processing of information from the NUE and the INS. On the one hand, this makes it possible to detect the NUE inoperability, even in the absence of the received SIM in a given time interval, and, as a result, leads to an increase in the accuracy of the determined AC spatial coordinates due to the elimination of errors caused by the NUE inoperability, and on the other hand, it improves the accuracy of determined AC spatial coordinates with an operable NUE in case of the presence of the received SIM in a given time interval due to the complex processing of information from the NUE, INS and LCCS.
EFFECT: improving the accuracy of the determined AC spatial coordinates.
1 cl, 1 dwg
