FIELD: radio equipment.
SUBSTANCE: invention relates to radio engineering and can be used in development and modernization of navigation field integrity monitoring devices of global navigation satellite systems in part relating to information reliability monitoring, received by aircraft (AC) consumer navigation equipment (CNE). Essence of the invention lies in the fact that the decision on compliance or non-conformity of the information received by the AC CNE with the specified requirements is formed based on comparison of estimates of distances between aircraft and local control-correcting station (LCCS), determined in one case by difference between receiving moments and transmitting an additional information message transmitted from the LCCS to the aircraft, and in the second case from the aircraft to LCCS spatial coordinates. At that, spatial coordinates of LCCS are used, transmitted in additional information message and evaluation of space coordinates of aircraft, which are formed by information contained in satellite signals, reliability of which is controlled. This allows detecting facts of discrepancy of reliability of information to specified requirements at the point of its reception by AC CNE even under condition of conformity of reliability of this information to specified requirements at the point of its reception by LCCS CNE.
EFFECT: technical result is higher probability of correct control of reliability of information received by aircraft.
1 cl, 1 dwg
