FIELD: data processing.
SUBSTANCE: invention relates to satellite positioning systems. Technical result is achieved due to database of expert estimates of probability of intention of intentionally unfavorable external action Pintent in relation to satellite positioning system, databases of expert estimates of the probability of the intention to perform deliberate adverse external action Pcapability, databases of expert assessments of probability of vulnerability from intentional unfavorable external action Pvulnerability, a map database, a unit for estimating the probability of using a satellite positioning system Ppossibility in accordance with mathematical model Ppossibility=1-Pintent·Pcapability·Pvulnerability, a system for monitoring and / or correcting a satellite positioning system, a navigation-information satellite system unit, a consumer navigation equipment unit and an onboard equipment unit.
EFFECT: technical result consists in efficiency and reliability of operation of system for assessing stability of satellite positioning system to unfavorable external actions.
1 cl, 1 dwg, 4 tbl
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