MULTIPLE-STATION ACCESS SATELLITE COMMUNICATION SYSTEM Russian patent published in 1997 - IPC

FIELD: combined space radio lines for transmitting space vehicle monitoring and control information. SUBSTANCE: multiple-station access satellite communication line has on transponder antenna-feeder unit 1, frequency storage unit 2, receiving frequency synthesizer 3, receiver 4, transmitter 5, marker-signal transmitter 6, counter 7, CORRELATION command decoder 8, third flip-flop 9, third switch 10, call signal decoder 11, control command decoder 12, zero state decoder 13, first switch 14, first flip-flop 15, correction code storage unit 16, acknowledgement code storage unit 17, service information storage unit 18, first frequency divider 19, fifth switch 20, second frequency divider 21, reference-frequency generator 22, controlled frequency divider 23, subtracting counter 24, fourth switch 25, second switch 26, third frequency divider 27, pulse distributor 28, code storage unit 29, fourth flip-flop 30, second flip-flop 31; on ground station it has antennas-feeder unit 32, marker-signal receiver 33, frequency synthesizer 34, information-signal receiver 35, control unit 36, transmitting unit 37, marker-signal selector 38, sync pulse generator 39, CORRECTION command decoder 40, transponder number decoder 41, time space unit 42, correction code register 43, flip-flop 44, switch 45, subtracting counter 46, first and second pulse signal generators 47 and 48, frequency storage unit 49. EFFECT: improved carrying capacity of system. 2 dwg