LOW-ORBIT SYSTEM FOR REGIONAL COMMUNICATION Russian patent published in 1998 - IPC

FIELD: electronic communication systems which repeater is located on remote-controlled aircraft which orbit in air above serviced region. SUBSTANCE: device provides communication between users which are located in serviced region using equipment which is located on aircraft. Communication system has ground stations which are designed as multiple-channel radio terminals each of which has multiple-channel receiver which is connected to receiving antenna, multiple-channel transmission unit which is connected to emitting antenna, first multiplexer, which outputs are connected to user terminal. Its inputs are connected to outputs of group of multiple-channel receiver. Aircraft is equipped with multiple-channel receiver which is connected to receiving antenna, multiple-channel transmission unit which is connected to emitting antenna, unit for signal decoding and shaping, which first input is connected to first output of multiple-channel receiver. Outputs of group are connected to inputs of group of multiple-channel transmission unit. Remote- control aircraft flies in air over Earth surface of serviced region. Aircraft is equipped with engine control unit, aircraft position control unit, collision prevention unit, first, second and third outputs of unit for signal decoding and shaping are connected respectively to inputs of aircraft position control unit, collision prevention unit and aircraft take-off and landing control unit. Outputs of said control units are connected respectively to first, second and third inputs of engine control unit, which output serves as control output of system. Second output of collision prevention unit is connected to control input aircraft control unit. Second output of multiple-channel receiver is connected to second input of unit for signal decoding and shaping. In addition system has ground stations which are designed as single-channel terminals according to number of users. Each multiple-channel terminal has second multiplexer, memory unit, unit for detection of aircraft coordinates, and generator of signals for control of aircraft. Input of multiple-channel receiver is connected to input of unit for detection of aircraft coordinates, which output is connected through generator of signals for control of aircraft to input of multiple-channel transmission unit, which has group of inputs which are connected to outputs of second multiplexer. Outputs of first multiplexer are connected to same-name inputs of first group of memory unit. Outputs of corresponding user's terminals are connected to same-name inputs of second group of memory unit and corresponding inputs of second multiplexer. Information inputs of user's terminals are information inputs of each multiple-channel terminal. System which is located on aircraft has storage batteries and solar array which are connected to power supply line of system in parallel. Single channel terminal is designed as mobile set and has receiver and transmitter simultaneously. Its functions are analogous to those of mobile telephone set. User may specify its design with receiver or transmitted only. multiple-channel terminal provides communication between users of stationary communication networks which has no radio connection, such as telephone exchange systems, security or computer networks. In addition multiple-channel terminal has maximal communication priority and provides service functions such as aircraft take-off and landing as well as control of its position. EFFECT: increased capacity, increased reliability of communication due to independence from climate, high buildings and landscape. 2 cl, 5 dwg