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Short-range visible light ranging and detecting system using illumination light emitting diodes
journal contribution
posted on 2023-06-09, 19:22 authored by Dehao Wu, We-De Zhong, Zabih Ghassemlooy, Chen ChenA visible light object ranging and detecting system utilising light emitting diodes (LEDs) is proposed and investigated. The LEDs are used not only as illuminating devices but also as ranging and detecting sensors. LED is intensity modulated with a predetermined sinusoid signal at a certain frequency with an initial phase. After propagation, the backscatter signals from the object are received and detected. The direction of the object is estimated by an optical imaging receiver. The distance between the object and the LED is obtained based on a differential phase-shift measurement. The theoretical model of the system is derived and evaluated, and the fundamental channel characteristics of the proposed system are simulated and analysed. The numerical results show that with a proper design, the presence or position of an object can be identified with a detection range of up to ~6 m, with an estimation error as small as ~5 cm for the system employing commercially available illumination LEDs.
History
Publication status
- Published
File Version
- Published version
Journal
IET OptoelectronicsISSN
1751-8768Publisher
The Institution of Engineering and TechnologyExternal DOI
Issue
3Volume
10Page range
94-99Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Advanced Communications, Mobile Technology and IoT (ACMI) Publications
Notes
2018 premium Award for Best Paper in IET OptoelectronicsFull text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2019-10-28First Compliant Deposit (FCD) Date
2019-10-14Usage metrics
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