FIELD: physics.
SUBSTANCE: method involves reception, emission and relay of a primary and terminal radio signals between a spacecraft, primary station and an alternate station. An additional primary radio signal and an additional terminal radio signal is further relayed from the spacecraft to the primary station where these signals are received. Distance between the spacecraft, primary and alternate stations is determined from the time interval between emission of the signal and reception of the primary and additional primary signals and reception of terminal, auxiliary terminal, additional terminal and auxiliary additional terminal radio signals at the primary station taking into account Doppler frequency shift.
EFFECT: more accurate determination of distance between spacecraft and stations.
6 cl, 2 dwg
