Unmanned aerial vehicle one-station multi-machine system air-ground data link channel distribution method

Abstract

The invention discloses an unmanned aerial vehicle one-station multi-machine system air-ground data link channel allocation method, and aims to provide a link channel allocation method capable of reducing the operation complexity and improving the channel resource reuse degree. The method is realized through the following technical scheme: a ground control station obtains unmanned aerial vehicle platform position information, counts the number of air-ground data links, calculates included angles between every two air-ground data links, and performs descending order arrangement on all includedangle values; then, starting from the air-ground data link corresponding to the maximum included angle, a 'super link' is constructed according to the relation between the included angle between the links and a 'multiplexing threshold', and the number of the air-ground data links contained in the super link is taken as the weight of the super link; the ground control station iteratively performs the super link merging process until no super link which can be further merged exists, and the channel resources are evenly distributed to each super link; and after the distribution process is finished, the channel distribution result is sent to the unmanned aerial vehicle platform through the uplink air link.

Description

technical field [0001] The invention relates to a channel allocation method suitable for the air-ground data link of a one-station multi-device system of an unmanned aerial vehicle. Background technique [0002] A drone is an aerial vehicle that is driven by electricity or other means and is unmanned on board. Unmanned aerial vehicle system refers to a communication system that is composed of unmanned aerial vehicle platform, ground control station, mission equipment, etc., and can complete specific tasks. Under normal circumstances, the ground station completes the control of the UAV platform's speed, direction, attitude and other functional parameters and task distribution functions. Task-specific feedback information. With the rapid development of aviation technology and the continuous improvement of UAV performance, UAV system has become a research hotspot in the fields of aviation, measurement and control, and electronic countermeasures. Early research on unmanned ae...

AI Technical Summary

Problems solved by technology

This method takes solving channel resource conflicts as the main idea. Although a conflict-free channel resource allocation scheme can be obtained at a relatively fast speed, the indiscriminate sequence of the links in the allocation process directly affects the final channel allocation results, thereby weakening the system. The degree of reuse of channel resources affects the transmission capability of air-to-ground data links

[0010] Although the existing channel resource allocation method for the air-ground data link of the UAV one-station multi-machine system can determine a conflict-free allocation scheme to a certain extent, it cannot effectively take into account the performance of channel resource reuse and realizability.

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