COMPUTER SYSTEM FOR REMOTE CONTROL OF NAVIGATION SYSTEMS FOR AUTOMATED MONITORING OF ENVIRONMENT IN ARCTIC CONDITIONS Russian patent published in 2020 - IPC G01C21/00 

FIELD: physics.

SUBSTANCE: invention relates to field of automated monitoring of environment in Arctic conditions, namely, the state of the atmosphere and ice with the simultaneous determination of the coordinates of its own location of the navigation systems and the transmission of the information obtained via radio channels, and can be used as a means of monitoring the environment in the ice movement area for safe navigation of vessels along the northern sea route and ensuring safety of oil and gas field and hydraulic infrastructure facilities on the shelf and in conditions of ice cover, including drifting ones. System comprises a dispatcher station (DS), navigation systems (NSi, i = 1, 2, … , n) and spacecraft satellite communication system (SC). Each transceiving device 1 (1.i) comprises control unit 2 (2.i), computer 3 (3.i), master oscillator 4 (4.i), modulator code generator 5 (5.i), phase manipulator 6 (6.i), first heterodyne 7 (7.i), first mixer 8 (8.i), first intermediate frequency amplifier 9 (9.i), first power amplifier 10 (10.i), duplexer 11 (11.i), transceiving antenna 12 (12.i), second amplifier 13 (13.i) of power, second heterodyne 14 (14.i), second mixer 15 (15.i), amplifier 16 (16.i) of second intermediate frequency, multiplier 17 (17.i), band-pass filter 18 (18.i), phase detector 19 (19.i), oscillatory circuit 25 (25.i), narrow-band filter 26 (26.i), amplitude detector 27 (27.i), threshold unit 28 (28.i) and switch 29 (29.i). Control unit 2 (2.i) can be based on microprocessor. Unit 21.i of determining coordinates using a satellite navigation system can be based on GPS and GLONASS satellite navigation systems and is a GPS signal receiver 21.i with receiving antenna 20.i. Ice thickness measurement unit 22.i can be made based on an ultrasonic thickness gauge. Weather probe metering unit 23.i can be a measuring unit of a weather balloon.

EFFECT: technical result is high selectivity, interference immunity and reliability of duplex radio communication between control room and navigation systems by suppressing false signals (interference) received over additional channels.

1 cl, 4 dwg