An anti-jamming method for UAV communication based on three-dimensional trajectory power optimization

Abstract

The invention proposes an anti-jamming method for UAV communication based on three-dimensional trajectory power optimization. The present invention first constructs a channel model according to the communication characteristics of the UAV, and then constructs the constraints of the UAV according to the actual application environment, and uses the weighted average throughput of the UAV and the average interference area brought by the UAV The difference is used as the original objective function to represent the effective anti-jamming communication capability of the UAV, and then the UAV flight trajectory and transmission power are obtained by maximizing the lower bound of the original objective function by using the block coordinate descent algorithm and the continuous convex approximation algorithm. Good suboptimal solution. The present invention considers the balance between the anti-jamming communication ability of the UAV and the interference generated by the UAV itself, which has not been considered in the existing research, and designs a reasonable mathematical model to represent this balance. Compared with control, the method proposed in the present invention has higher performance.

Description

technical field [0001] The invention belongs to the field of unmanned aerial vehicle anti-interference communication, and in particular relates to an anti-interference method for unmanned aerial vehicle communication based on three-dimensional trajectory power optimization. Background technique [0002] In recent years, with the development of various UAV technologies, the application of UAVs in the field of wireless communication has received more and more attention from researchers. On the one hand, drones can be used as aerial base stations to supplement existing cellular base stations, providing additional data capacity in remote areas, hotspots, and post-disaster areas. On the other hand, another important use of drones is to access existing networks as air users to perform tasks such as data collection and monitoring. As a user, UAVs have three significant advantages in accessing existing ground networks: First, the channel characteristics between UAVs and ground base...

AI Technical Summary

Problems solved by technology

However, these measures will undoubtedly affect other existing ground equipment, causing unnecessary interference to them

And in most cases, the UAV only knows the location of the ground base station that communicates with itself and does not know the location of other ground equipment on the flight path, so it is not realistic to specifically reduce the interference of the UAV to a specific ground equipment

Images