UAV data link system architecture device for data transmission asymmetry

Abstract

The invention provides an unmanned aerial vehicle data link system architecture device for data transmission asymmetry. The unmanned aerial vehicle data link system architecture device comprises an unmanned aerial vehicle data link uplink architecture device and an unmanned aerial vehicle data link downlink architecture device, The unmanned aerial vehicle data link uplink architecture device comprises an uplink instruction data baseband sending processing module located at a ground end, wherein the uplink data radio frequency receiving module, the uplink data analog-to-digital conversion module and the uplink instruction data baseband receiving and processing module are located at an airborne end; The unmanned aerial vehicle data link downlink architecture device comprises a downlink imagetransmission telemetry data baseband sending processing module located at an airborne end. wherein the downlink data radio frequency receiving module, the downlink data analog / digital conversion module and the downlink image transmission telemetry data baseband receiving and processing module are located at the ground end.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular, to an unmanned aerial vehicle data link system architecture device aimed at the asymmetry of data transmission. Background technique [0002] The UAV data link system is the link between the UAV and the ground station, which includes the uplink from the ground station terminal to the UAV terminal and the downlink from the UAV terminal to the ground station terminal. The data transmission of the UAV data link system has two asymmetries: first, the downlink transmits images and ranging information with a large amount of information and requires higher effectiveness, while the uplink transmits the information volume of remote control instructions Relatively small but requires higher reliability; second, the image data transmitted in the downlink has a large data volume and a fast data rate, but the reliability requirements are low, while the telemetry data has a small d...

AI Technical Summary

Problems solved by technology

The data transmission of the UAV data link system has two asymmetries: first, the downlink transmits images and ranging information with a large amount of information and requires higher effectiveness, while the uplink transmits the information volume of remote control instructions Relatively small but requires higher reliability; second, the image data transmitted in the downlink has a large data volume and a fast data rate, but the reliability requirements are low, while the telemetry data has a small data volume and a slow data rate, but Requires transmission of timing information and high reliability requirements

At present, the data link system serving small and medium UAVs mainly completes the long-distance transmission of low-speed remote control commands or the short-distance transmission of high-speed sensor data, which is relatively simple in function and cannot meet the actual transmission of downlink data link data. need

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