Accès libre

Adaptive Measurement Selection for Scalable Distributed Graph Optimization in Multi-UAV Relative Positioning

 et   
28 août 2025
À propos de cet article

Citez
Télécharger la couverture

Fig. 1.

Schematic diagram of relative positioning for UAV swarm. (a) Positioning based on external anchors. (b) Anchor-free relative positioning. (c) The influence of formation on positioning accuracy.
Schematic diagram of relative positioning for UAV swarm. (a) Positioning based on external anchors. (b) Anchor-free relative positioning. (c) The influence of formation on positioning accuracy.

Fig. 2.

The DGO scheme for UAV swarm.
The DGO scheme for UAV swarm.

Fig. 3.

UAV swarms used in the simulations. (a) 12-UAV swarm. (b) 24-UAV swarm. (c) 36-UAV swarm. (d) 100-UAV swarm.
UAV swarms used in the simulations. (a) 12-UAV swarm. (b) 24-UAV swarm. (c) 36-UAV swarm. (d) 100-UAV swarm.

Fig. 4.

The flight trajectory of the swarm.
The flight trajectory of the swarm.

Fig. 5.

Relative positioning error variations with respect to No across four methods. (a) Error curves for the 12-UAV swarm. (b) Error curves for the 24-UAV swarm. (c) Error curves for the 36-UAV swarm. (d) Error curves for the 100-UAV swarm.
Relative positioning error variations with respect to No across four methods. (a) Error curves for the 12-UAV swarm. (b) Error curves for the 24-UAV swarm. (c) Error curves for the 36-UAV swarm. (d) Error curves for the 100-UAV swarm.

Fig. 6.

The variation of computation time per step with No.
The variation of computation time per step with No.

Fig. 7.

Relative positioning error for four methods in the 100-UAV swarm under different sensing conditions. (a) No = 4. (b) No = 6. (c) No = 8. (d) No = 10.
Relative positioning error for four methods in the 100-UAV swarm under different sensing conditions. (a) No = 4. (b) No = 6. (c) No = 8. (d) No = 10.

Fig. 8.

Dynamic formation reconfiguration. (a) Transformation from rectangle formation to circular formation. (b) Transformation from circular formation to V-formation.
Dynamic formation reconfiguration. (a) Transformation from rectangle formation to circular formation. (b) Transformation from circular formation to V-formation.

Fig. 9.

Error curves in topology reconfiguration simulation.
Error curves in topology reconfiguration simulation.

The statistical metrics of the relative positioning methods_

Method MAE (m) STD (m) MAX (m)
State estimation 1.605 0.365 2.606
CGO 0.718 0.200 1.276
DF 0.818 0.179 1.286
Fi-max 0.803 0.206 1.410
Fi-random 0.720 0.213 1.340
Fi-min 0.599 0.169 1.163