Visible light positioning using an aperture and a quadrant photodiode

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12 Citations (Scopus)

Abstract

This paper describes a new form of angle of arrival (AOA) detector which can be applied in an indoor visible light positioning system using LED luminaires. In this new detector, a quadrant photodiode (PD) is placed below a transparent aperture in an opaque screen. Light passing through the aperture creates an illuminated area on the quadrant PD. This light spot has the same shape and size as the aperture. The position of the light spot on the PD depends on the AOA of the light. It is shown that this position can be determined by measuring the relative optical power of the light reaching each of the four quadrants of the PD. For the case of a square aperture and a square photodetector, a simple algorithm can be used to determine the x and y coordinates of the center of the light spot on the PD. From this, the AOA can be calculated. Simulations for an indoor visible light positioning system using LED luminaires and realistic parameters show that accurate AOA estimation is possible. If different luminaires transmit different orthogonal signals, digital signal processing can be used to separately estimate the received signal powers from each of the transmitting luminaires. Thus, this new detector has the potential to provide accurate three-dimensional positioning using a single quadrant PD.

Original languageEnglish
Title of host publication2017 IEEE Globecom Workshops (GC Wkshps) - Proceedings
EditorsJean Armstrong, Steve Hranilovic, Takaya Yamazato
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages472-477
Number of pages6
ISBN (Electronic)9781538639207
ISBN (Print)9781538639214
DOIs
Publication statusPublished - 2017
EventIEEE GLOBECOM Workshop on Optical Wireless Communications 2017 - Singapore, Singapore
Duration: 8 Dec 20178 Dec 2017
Conference number: 7th
https://web.archive.org/web/20170718100548/http://yamazato.ilas.nagoya-u.ac.jp/owc/index.html

Conference

ConferenceIEEE GLOBECOM Workshop on Optical Wireless Communications 2017
Abbreviated titleOWC 2017
CountrySingapore
CitySingapore
Period8/12/178/12/17
OtherHeld as part of IEEE GLOBECOM Workshops 2017
Internet address

Keywords

  • ADA receiver
  • Aperture
  • Indoor Positioning
  • Quadrant photodiode
  • Visible Light
  • VLP

Cite this

Cincotta, S., Neild, A., He, C., & Armstrong, J. (2017). Visible light positioning using an aperture and a quadrant photodiode. In J. Armstrong, S. Hranilovic, & T. Yamazato (Eds.), 2017 IEEE Globecom Workshops (GC Wkshps) - Proceedings (pp. 472-477). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/GLOCOMW.2017.8269150