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Acta Optica Sinica, Volume. 41, Issue 5, 0523001(2021)

Analysis of Light-Emitting Diodes Spatial Beam Effect in Visible Light Positioning System

Jupeng Ding1、*, Chih-Lin I2, Jintao Wang3, Hui Yang3, Xifeng Chen1, and Wenwen Liu1
Author Affiliations
  • 1Key Laboratory of Signal Detection and Processing in Xinjiang Uygur Autonomous Region, College of Information Science and Engineering, Xinjiang University, Urumqi, Xinjiang 830046, China
  • 2China Mobile Research Institute, Beijing 100053, China
  • 3Beijing National Research Center for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (15)
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    References (22)
    Cited By (5)
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    Figures & Tables(15)
    Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

    Fig. 1. Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

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    EdiPower Emitter non-Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

    Fig. 2. EdiPower Emitter non-Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

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    LUXEON Rebel non-Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

    Fig. 3. LUXEON Rebel non-Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

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    Side Emitter non-Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

    Fig. 4. Side Emitter non-Lambertian LED. (a) Three-dimensional spatial light beam; (b) application indoor scene

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    Spatial distribution of the positioning error of the traditional Lambertian beam

    Fig. 5. Spatial distribution of the positioning error of the traditional Lambertian beam

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    Positioning error CDF of the traditional Lambertian beam

    Fig. 6. Positioning error CDF of the traditional Lambertian beam

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    Spatial distribution of the positioning error of the EdiPower Emitter non-Lambertian beam

    Fig. 7. Spatial distribution of the positioning error of the EdiPower Emitter non-Lambertian beam

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    Positioning error CDF of the EdiPower Emitter non-Lambertian beam

    Fig. 8. Positioning error CDF of the EdiPower Emitter non-Lambertian beam

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    Spatial distribution of the positioning error of the LUXEON Rebel non-Lambertian beam

    Fig. 9. Spatial distribution of the positioning error of the LUXEON Rebel non-Lambertian beam

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    Positioning error CDF of the LUXEON Rebel non-Lambertian beam

    Fig. 10. Positioning error CDF of the LUXEON Rebel non-Lambertian beam

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    Spatial distribution of the positioning error of the Side Emitter non-Lambertian beam

    Fig. 11. Spatial distribution of the positioning error of the Side Emitter non-Lambertian beam

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    Positioning error CDF of the Side Emitter non-Lambertian beam

    Fig. 12. Positioning error CDF of the Side Emitter non-Lambertian beam

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    Positioning error CDF under linear and nonlinear position estimation

    Fig. 13. Positioning error CDF under linear and nonlinear position estimation

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    • Table 1. Main noise parameters

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      Table 1. Main noise parameters

      ParameterValue
      Boltzmanns constant k1.38×10-23
      Electric charge q1. 6022×10-19
      Fixed capacitance of photo detectorper unit area η /(pF·cm-2)112
      Photo detector responsivity γ /(A·W-1)0.54
      Noise bandwidth factor I20.562
      Absolute temperature Tk /K295
      Open loop voltage gain G10
      FET channel noise factor Γ1.5
      FET trans-conductance gm /ms30
      Background noise current Ibg /μA5100
      Thermal noise factor I30.0868

    • Table 2. Main parameters of the VLP system

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      Table 2. Main parameters of the VLP system

      ParameterValue
      Scenario room length, with, height /m5,5,3
      LED source arrays Lambertian index mL1
      1st LED source arrays spatial coordinate(1.25,3.75,3)
      2nd LED source arrays spatial coordinate(3.75,3.75,3)
      3rd LED source arrays spatial coordinate(1.25,1.25,3)
      4th LED source array spatial coordinate(3.75,1.25,3)
      LED source arrays elevation angle /(°)-180
      LED source arrays azimuth angle /(°)180
      Receiver elevation angle /(°)0
      Receiver height /m0.85
      Receiver azimuth angle /(°)180
      Receiver field of view θFOV /(°)70
      PD detector area AR /cm21
      Optical filter gain Ts1
      Optical concentrator gain g2.5481
      Transmitted optical power Pt /W4
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    Jupeng Ding, Chih-Lin I, Jintao Wang, Hui Yang, Xifeng Chen, Wenwen Liu. Analysis of Light-Emitting Diodes Spatial Beam Effect in Visible Light Positioning System[J]. Acta Optica Sinica, 2021, 41(5): 0523001

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    Paper Information

    Category: Optical Devices

    Received: Aug. 10, 2020

    Accepted: Oct. 21, 2020

    Published Online: Apr. 7, 2021

    The Author Email: Ding Jupeng (jupeng7778@163.com)

    DOI:10.3788/AOS202141.0523001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology