| 摘要 |
FIELD: radio.SUBSTANCE: invention relates to radio navigation and can be used in systems for determining motion parameters using non-query method, as well as in systems using signals of satellite radio navigation systems. Said result is achieved by method of detecting unauthorised influence on accuracy of space navigation system in navigation consumer equipment installed on board moving object, which comprises filtering and rejecting abnormal emission, implementation at a given time interval forming an array of valid measurements with following calculation based thereon coefficients of approximating polynomial, then on basis of received polynomial coefficients make extrapolation of measurements at a given time interval, current measurement is compared to extrapolated values, decide on presence of tampering on basis of criterion, in presence of tampering fixed point in time at which said effect was found, and if it is impossible to compensate for said effect, current measurement is excluded from treatment, in absence of tampering interpolation interval is shifted in time and repeat operation on a new array of reliable measurements.EFFECT: achieved technical result is detection of unauthorised distortion of navigation signals from satellites of global navigation space systems, which can not be found to independently control algorithms reliability, available in navigation apparatus of high-precision weapons.1 cl |
