RANGE FINDING SYSTEM WITH MEASUREMENT OF PHASE OF RADIO SIGNAL Russian patent published in 1997 - IPC

FIELD: measurement technology, development of high-precision measurement systems for geodesy and radio navigation. SUBSTANCE: range finding system with measurement of phase of radio signal incorporates ground and airborne transceiving stations each including reference frequency generator, frequency synthesizer, transmitter, antenna switch, antenna, receiver, phase detector and commutator- former. Ground station has correction unit, static processing unit and indicator connected in series. Correction unit is manufactured to realize equation , where Δγ_j is value of correction on frequency f_j; C is speed of rotation of radio wave; ψ_j is measured phase shift on frequency f_j; j is number of frequencies, j=1,2,...n. Thus increase of accuracy of range measurement is achieved thanks to determination of corrections on additional frequencies. EFFECT: increased accuracy of range measurement. 3 dwg