1 results about "Cdma networks" patented technology

The application provides a high-throughput satellite-based unmanned aerial vehicle dual-mode measurement and control system and method, relates to the technical field of unmanned aerial vehicle communication, and comprises an unmanned aerial vehicle platform, a high-throughput satellite, a ground gateway station of the high-throughput satellite and a ground control station of the unmanned aerial vehicle platform; the system solves the bandwidth demand problem of a large number of unmanned aerial vehicles when simultaneously communicating by adopting the high-throughput satellite, the ground gateway station of the high-throughput satellite is provided with a TDMA service carrier, a TDMA network control carrier, a CDMA service carrier and a CDMA network control carrier, the system sends forward remote control instructions through a CDMA service channel and returns back measurement and control data through a TDMA service channel, that is, a CDMA / TDMA dual-mode measurement and control method is adopted, so that the anti-interference performance of the forward link of the high-throughput satellite is improved, the technical problem that unmanned aerial vehicle communication is prone to interruption is avoided, and the reliability of the unmanned aerial vehicle satellite communication system is improved.