Laser & Optoelectronics Progress, Volume. 60, Issue 9, 0906005(2023)

Mechanism of Minimum Frequency Resolution in a Visible Light-Positioning System

Shubei Gong, Zhikun Qian, and Bingyao Cao*
Author Affiliations
  • Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China
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    Figures & Tables(10)
    Principle of visible light imaging
    Imaging comparison at different frequencies. (a) 1000 Hz; (b) 1500 Hz; (c) 2000 Hz
    Influencing factors of imaging region size
    LED modulation frequency and roller shutter
    Experimental device and system block diagram. (a) Experimental device; (b) system block diagram
    LED-ID recognition rates at different frequency intervals
    Imaging comparison at different object distances. (a) 50 cm; (b) 100 cm; (c) 200 cm
    Influence of object distance on minimum frequency resolution
    Comparison between minimum frequency resolution and selected frequency interval
    • Table 1. Key parameters of experiment

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      Table 1. Key parameters of experiment

      ParameterValue
      Resolution of image sensor /pixel960×720
      ISO of image sensor100
      Exposure time of image sensor /μs125
      Diameter of LED /cm17.4
      Voltage of LED /V132
      Current of each LED /mA23
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    Shubei Gong, Zhikun Qian, Bingyao Cao. Mechanism of Minimum Frequency Resolution in a Visible Light-Positioning System[J]. Laser & Optoelectronics Progress, 2023, 60(9): 0906005

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Feb. 23, 2022

    Accepted: Apr. 28, 2022

    Published Online: May. 9, 2023

    The Author Email: Cao Bingyao (caobingyao@shu.edu.cn)

    DOI:10.3788/LOP220796

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