| 摘要 |
A universal wireless distribution system (UWDS) relates to special technique for multi-channel television and radio broadcasting, access to data transmission and communication services, mainly to communications that provides reception and transmission of multimedia information. UWDS comprises a central station and a user station. The central station includes a receive/transmit channel comprising a receive/transmit antenna system. The receive/transmit channel comprises transmit channel including a transmitter of transmit channel of the central station, an adder-regulator, section for forming of TV programs in DVB format having CA system, a modulator, a unit for conversion of high-speed digital flow of down-link packages and, at least one receive channel including a receiver, a system of couplers, a unit for conversion of high-speed digital flow of up-link packages. The user station comprises an antenna of up-link channel, an up-link transmitter of the user station, a unit for conversion of digital flow of receive/transmit channel of the user station, an antenna of down-link channel, a receiver of down-link channel of the user station. The technical result is growth of availability factor of the system, production cheapening, functional capabilities enhancement. |
