• Laser & Optoelectronics Progress
  • Vol. 57, Issue 21, 212805 (2020)
Liu Tao* and Jia Suimin
Author Affiliations
  • 郑州师范学院信息科学与技术学院, 河南 郑州, 450044
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    DOI: 10.3788/LOP57.212805 Cite this Article Set citation alerts
    Liu Tao, Jia Suimin. Collision Avoidance Algorithm for Unmanned Aerial Vehicle Group Based on Wireless Ultraviolet Communication[J]. Laser & Optoelectronics Progress, 2020, 57(21): 212805 Copy Citation Text show less
    NLOS UV communication model
    Fig. 1. NLOS UV communication model
    UV beacon communication model. (a) Two-dimensional model; (b) three-dimensional model
    Fig. 2. UV beacon communication model. (a) Two-dimensional model; (b) three-dimensional model
    Communication coverage of a wireless UV beacon node in two- and three-dimensional spaces. (a) Two-dimensional space; (b) three-dimensional space
    Fig. 3. Communication coverage of a wireless UV beacon node in two- and three-dimensional spaces. (a) Two-dimensional space; (b) three-dimensional space
    Four-node positioning model
    Fig. 4. Four-node positioning model
    Movement status of two drones
    Fig. 5. Movement status of two drones
    Vector sharing method for collision avoidance
    Fig. 6. Vector sharing method for collision avoidance
    Received signal strength of four ranging methods
    Fig. 7. Received signal strength of four ranging methods
    Received signal strength of different transmitting and receiving angles under NLOS
    Fig. 8. Received signal strength of different transmitting and receiving angles under NLOS
    UV ranging error at different ranging modes
    Fig. 9. UV ranging error at different ranging modes
    Positioning results of two- and three-dimensional spaces. (a) Two-dimensional space; (b) three-dimensional space
    Fig. 10. Positioning results of two- and three-dimensional spaces. (a) Two-dimensional space; (b) three-dimensional space
    2D and 3D spatial positioning accuracy
    Fig. 11. 2D and 3D spatial positioning accuracy
    Two UAV collision avoidance paths
    Fig. 12. Two UAV collision avoidance paths
    Distance between two UAVs
    Fig. 13. Distance between two UAVs
    ParameterValue
    Wavelength λ /nm255
    Average power Tx /mW50
    Effective areaAr /mm8×24
    Typical Gain ofPMT G107
    Quantum efficiencyηr /%25
    Beam divergence angleof the transmitter ϕ1 /(°)6
    Field of View ofthe receive ϕ2/(°)80
    Atmospheric absorptioncoefficient Ka /km-10.74
    Mie scattering coefficientKm/km-10.25
    Rayleigh scatteringcoefficient Kr/km-10.24
    Atmospheric scatteringcoefficient Ks/km-10.49
    Atmospheric extinctioncoefficient Ke/km-11.23
    Table 1. System model parameters
    Liu Tao, Jia Suimin. Collision Avoidance Algorithm for Unmanned Aerial Vehicle Group Based on Wireless Ultraviolet Communication[J]. Laser & Optoelectronics Progress, 2020, 57(21): 212805
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