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Ultraviolet Ranging With Non-Perfect LED Transmission and Photon-Counting
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冯
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DOI：10.1109/jlt.2026.3698034.png)
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Abstract
En 中文
This paper demonstrates an ultraviolet (UV) time-of-flight (TOF) ranging system. We propose three enhanced approaches to overcome the non-perfect transceiver characteristics and validate their effectiveness, including an adaptive windowing method employing photon-counting statistics to dynamically adjust synchronization thresholds and enhance robustness against variable signal intensities, a waveform-matched synchronization approach with quantized coefficients to mitigate errors from non-ideal UV pulse shapes, and a light-intensity-assisted distance correction technique to compensate for hardware delays and channel-induced biases. The performance gain of improved methods for non-perfect transmitter and receiver are experimentally validated, demonstrating its ability to enhance both the reliability and accuracy of the ranging system. Finally, we realize a real-time hardware system and conduct two field tests under both daytime and night, resulting in root-mean-square errors (RMSEs) of 0.96 m and 1.01 m, respectively—closely approaching the theoretical lower bound dictated by current hardware constraints.
Keywords:
Adaptive window opening
poisson channel
synchronization
TOF
UV ranging
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4.8
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1.7W
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3.8W
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