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- W2979760095 abstract "Visible Light Positioning (VLP) might enable auspicious tracking systems, well-suited for low-cost and route-configurable autonomous guided vehicles. Yielding the high accuracy required, necessitates a detailed modelling of a photodiode (PD) receiver's angular characteristics. Still lacking, current RSS-based VLP systems implicitly cope by measuring and (arbitrarily) fitting the received power - distance relation. Upon PD changeover, a recalibration is needed. In this paper, it is shown that adequately modelling the receiver's angular dependencies (i.e. the responsivity) obsoletes the calibrating fit. Hereto, a new responsivity model is proposed, which is a function of the square of the incidence angle rather than its cosine. An extensive measurement set highlights that this model better matches the measured angular characteristics. In terms of the coefficient of determination $mathbf{R}^{mathbf{2}}$ , the new model outscores the baseline Lambertian and generalised Lambertian responsivity models by 1.64% and 0.17% for a Lambertian-like receiver, and by 133% and 1.24% for a non-Lambertian-resembling receiver." @default.
- W2979760095 created "2019-10-18" @default.
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- W2979760095 date "2019-06-01" @default.
- W2979760095 modified "2023-09-27" @default.
- W2979760095 title "New Photodiode Responsivity Model for RSS-based VLP" @default.
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- W2979760095 doi "https://doi.org/10.1109/glc.2019.8864136" @default.
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