FIELD: radio engineering.
SUBSTANCE: system consists of orbit group of navigation space vehicles (NSV) at geostationary orbit (GSO) and/or NSV at geosynchronous inclined orbit (GSIO) and ground stations (GS) as per the number of NSV at GSO and/or NSV at GSIO; at that, each NSV includes a divider consisting of a receiving antenna-feeder device (AFD) of NSV, onboard radio-technical retranslator (ORTR) and transmitting AFD of NSV, and each GS consists of a detector, controlled generator (CG) consisting of transmitting AFD of GS, frequency and amplification conversion unit, shaper of navigation radio signals, CG of enveloping oscillations, CG of carrying oscillations; at that, detector consists of receiving AFD of GS, high-frequency part of multichannel receiving device, ADC, navigation processor, parallel processing channels, each of which consists of multipliers, accumulating adders, CG of delay tracking circuit (CG DTC), CG of phased automatic frequency control system (CG PAFCS).
EFFECT: improvement of operation reliability of the system owing to an independent evaluation of the delay caused with ionospheric refraction in ground station.
2 cl, 3 dwg
