RECEIVER OF SIGNALS OF SATELLITE RADIO NAVIGATION SYSTEMS Russian patent published in 2001 - IPC

FIELD: radio navigation. SUBSTANCE: proposed receiver has radio frequency converter, N-channel digital correlator, calculator and data exchange unit. Calculator includes processor, on-line storage, permanent storage, real time clock, external interface unit. Radio frequency converter incorporates input unit, former of signals of heterodyne frequencies, unit of first conversion of frequency of signals, channels of second conversion of frequency of signals of satellite radio navigation systems GPS and GLONASS correspondingly. Each channel includes filter, mixer and analog-to- digital converter. Former of signals of heterodyne frequencies incorporates reference generator and units forming signals of first, second and third heterodyne frequencies whose outputs are connected to corresponding mixers of unit of first conversion of frequency of signals and of channels of second conversion of frequency of signals. Unit forming signals of third heterodyne frequency is manufactured in the form of scale-of-eight frequency divider, its input being connected to output of unit forming signal of first heterodyne frequency. Units forming signals of first and second heterodyne frequencies are built in the form of re-tuned frequency synthesizers whose control inputs are coupled via data exchange unit to permanent storage which is inserted with first and second data storages of heterodyne and intermediate frequencies correspondingly for first and second operational modes of receiver corresponding to reception of signals of satellite radio navigation systems GLONASS of first and second ranges of letter frequencies with numbers of letters "0"-"12" and "-7"-"-4". EFFECT: capability of reception and conversion of signals of satellite radio navigation systems GPS and GLONASS by one receiver under conditions of introduction of new ranges of letter frequencies of signals of satellite radio navigation system GLONASS. 6 dwg