Frequency spectrum monitoring method and system based on multi-hop forwarding of unmanned aerial vehicle

Abstract

The invention provides a spectrum monitoring method and system based on multi-hop forwarding of an unmanned aerial vehicle. The method comprises the following steps: collecting a link connection relationship of all nodes in a whole ad hoc network; calculating the expected transmission times required by each node to send the data packet from the node to the node which is in single link connection with each node; selecting a shortest link path from the source node to the terminal node; judging whether the actual packet loss rate is greater than the standard packet loss rate; if yes, reducing the sampling rate of the spectrum data of the target source node; if not, increasing the sampling rate of the spectrum data of the target source node; judging whether the actual throughput is greater than the standard throughput; if yes, increasing the sampling rate of the spectrum data of the target source node; and if not, reducing the sampling rate of the spectrum data of the target source node. By adopting the scheme, the problems that the packet loss rate of the spectrum data transmitted in the link is increased and the throughput of establishing the link is reduced due to intermittent establishment of the link are solved.

Description

technical field [0001] The invention belongs to the technical field of spectrum monitoring, and in particular relates to a spectrum monitoring method and system based on multi-hop forwarding of an unmanned aerial vehicle. Background technique [0002] With the development of communication technology, wireless frequency equipment continues to grow. In order to strengthen the management of the electromagnetic spectrum and maintain the security of the electromagnetic spectrum, the relevant state departments use monitoring equipment to monitor and manage the electromagnetic spectrum in an all-round way. Traditional spectrum monitoring equipment is generally located on the ground, such as ground monitoring vehicles and monitoring stations. Spectrum monitoring results are easily affected by adverse factors such as obstacles, environmental restrictions, and multipath interference. Therefore, UAVs can be used to carry spectrum monitoring devices, and spectrum monitoring can be perfo...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a spectrum monitoring method and system based on multi-hop forwarding of unmanned aerial vehicles, which can be used to solve the problem of increasing the packet loss rate of spectrum data transmitted in the link and establishing the link caused by the intermittent establishment of the link in the prior art The problem of reduced throughput

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