Method of determining range to object with radiation source signals with different frequencies

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention can be used in complexes of determining motion parameters of controlled objects by multi-scale method, as well as in systems using signals of satellite radio navigation systems for resolving ambiguity measurements alternative methods of structural theory end fields. Method of determining range to object with emitting source of signals with different frequencies involves simultaneous reception of not less than two signals with different frequencies and subsequent measurement of phase of received signals relative phase of signals from reference generator, wherein measured phase value of each signal is converted to digital value of time interval between the signal from the reference generator and the received signal, then distance is calculated using corresponding adaptive formula.

EFFECT: unfolding ambiguity range measurements in phase-measuring radio systems.

1 cl, 1 dwg

 



 

Same patents:

FIELD: physics.

SUBSTANCE: method of determining range to an object with an emitting source of signals with different frequencies involves simultaneous reception of not less than two signals with different frequencies and subsequent measurement of the phase of the received signals relative the phase of the signals from a reference generator, characterised by that the measured phase value of each signal is converted to a digital value of the time interval between the signal from the reference generator and the received signal, and distance is calculated using a defined formula using the Chinese remainder theorem.

EFFECT: high accuracy and reliability of determining range in a non-request mode to a radiation source of two more frequencies using one receiving station.

2 dwg

FIELD: physics.

SUBSTANCE: method of determining range to an object with an emitting source of signals with different frequencies involves simultaneous reception of not less than two signals with different frequencies and subsequent measurement of the phase of the received signals relative the phase of the signals from a reference generator, characterised by that the measured phase value of each signal is converted to a digital value of the time interval between the signal from the reference generator and the received signal, and distance is calculated using a defined formula using the Chinese remainder theorem.

EFFECT: high accuracy and reliability of determining range in a non-request mode to a radiation source of two more frequencies using one receiving station.

2 dwg

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

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention can be used in complexes of determining motion parameters of controlled objects by multi-scale method, as well as in systems using signals of satellite radio navigation systems for resolving ambiguity measurements alternative methods of structural theory end fields. Method of determining range to object with emitting source of signals with different frequencies involves simultaneous reception of not less than two signals with different frequencies and subsequent measurement of phase of received signals relative phase of signals from reference generator, wherein measured phase value of each signal is converted to digital value of time interval between the signal from the reference generator and the received signal, then distance is calculated using corresponding adaptive formula.

EFFECT: unfolding ambiguity range measurements in phase-measuring radio systems.

1 cl, 1 dwg

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