The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
가시광선 통신(VLC)과 가시광선 거리 측정은 지능형 교통 시스템(ITS)에 적용 가능한 기술입니다. 그들은 데이터 전송과 거리 추정을 위해 도로의 모든 고유한 발광 다이오드(LED)를 사용합니다. 동시 VLC 및 범위 지정을 적용하여 두 가지 모두의 성능을 향상시킬 수 있습니다. VLC 데이터 전송과 범위 추정을 동시에 수행하려면 빠른 데이터 속도와 높은 정확도의 거리 측정이 필요합니다. 우리는 데이터 속도를 높이기 위해 펄스폭 변조(PWM)라는 신호 변조 방식을 사용합니다. 그러나 VLC 데이터 전송에 PWM을 사용하는 경우 LED 송신기의 이미지는 다양한 휘도 수준에서 캡처되고 쉽게 포화되며 LED 포화로 인해 범위 추정이 부정확해집니다. 본 논문에서는 PWM을 이용한 ITS용 새로운 동시 가시광 통신 및 거리 측정 시스템을 구축한다. 여기서는 LED 포화 문제를 분석하고 쌍삼차 보간법을 적용하여 LED 포화 문제를 해결함으로써 통신 및 거리 측정 성능을 향상시킵니다. 스테레오 카메라를 이용하여 동시 통신 및 레인징이 가능합니다. 통신은 MRC(최대비 결합)를 사용하여 실현되는 반면, 범위 지정은 POC(위상 전용 상관) 및 sinc 함수 근사를 사용하여 달성됩니다. 또한 현장 실험을 통해 제안한 시스템의 성능을 측정하였다. 결과는 통신 거리 55m까지 오류 없는 성능을 달성할 수 있으며, 범위 추정 오류는 0.5m 내에서 60m 미만임을 보여줍니다.
Ruiyi HUANG
Nagoya University
Masayuki KINOSHITA
Chiba Institute of Technology
Takaya YAMAZATO
Nagoya University
Hiraku OKADA
Nagoya University
Koji KAMAKURA
Chiba Institute of Technology
Shintaro ARAI
Okayama University of Science
Tomohiro YENDO
Nagaoka University of Technology
Toshiaki FUJII
Nagoya University
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
부
Ruiyi HUANG, Masayuki KINOSHITA, Takaya YAMAZATO, Hiraku OKADA, Koji KAMAKURA, Shintaro ARAI, Tomohiro YENDO, Toshiaki FUJII, "Simultaneous Visible Light Communication and Ranging Using High-Speed Stereo Cameras Based on Bicubic Interpolation Considering Multi-Level Pulse-Width Modulation" in IEICE TRANSACTIONS on Fundamentals,
vol. E106-A, no. 7, pp. 990-997, July 2023, doi: 10.1587/transfun.2022EAP1078.
Abstract: Visible light communication (VLC) and visible light ranging are applicable techniques for intelligent transportation systems (ITS). They use every unique light-emitting diode (LED) on roads for data transmission and range estimation. The simultaneous VLC and ranging can be applied to improve the performance of both. It is necessary to achieve rapid data rate and high-accuracy ranging when transmitting VLC data and estimating the range simultaneously. We use the signal modulation method of pulse-width modulation (PWM) to increase the data rate. However, when using PWM for VLC data transmission, images of the LED transmitters are captured at different luminance levels and are easily saturated, and LED saturation leads to inaccurate range estimation. In this paper, we establish a novel simultaneous visible light communication and ranging system for ITS using PWM. Here, we analyze the LED saturation problems and apply bicubic interpolation to solve the LED saturation problem and thus, improve the communication and ranging performance. Simultaneous communication and ranging are enabled using a stereo camera. Communication is realized using maximal-ratio combining (MRC) while ranging is achieved using phase-only correlation (POC) and sinc function approximation. Furthermore, we measured the performance of our proposed system using a field trial experiment. The results show that error-free performance can be achieved up to a communication distance of 55 m and the range estimation errors are below 0.5m within 60m.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2022EAP1078/_p
부
@ARTICLE{e106-a_7_990,
author={Ruiyi HUANG, Masayuki KINOSHITA, Takaya YAMAZATO, Hiraku OKADA, Koji KAMAKURA, Shintaro ARAI, Tomohiro YENDO, Toshiaki FUJII, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Simultaneous Visible Light Communication and Ranging Using High-Speed Stereo Cameras Based on Bicubic Interpolation Considering Multi-Level Pulse-Width Modulation},
year={2023},
volume={E106-A},
number={7},
pages={990-997},
abstract={Visible light communication (VLC) and visible light ranging are applicable techniques for intelligent transportation systems (ITS). They use every unique light-emitting diode (LED) on roads for data transmission and range estimation. The simultaneous VLC and ranging can be applied to improve the performance of both. It is necessary to achieve rapid data rate and high-accuracy ranging when transmitting VLC data and estimating the range simultaneously. We use the signal modulation method of pulse-width modulation (PWM) to increase the data rate. However, when using PWM for VLC data transmission, images of the LED transmitters are captured at different luminance levels and are easily saturated, and LED saturation leads to inaccurate range estimation. In this paper, we establish a novel simultaneous visible light communication and ranging system for ITS using PWM. Here, we analyze the LED saturation problems and apply bicubic interpolation to solve the LED saturation problem and thus, improve the communication and ranging performance. Simultaneous communication and ranging are enabled using a stereo camera. Communication is realized using maximal-ratio combining (MRC) while ranging is achieved using phase-only correlation (POC) and sinc function approximation. Furthermore, we measured the performance of our proposed system using a field trial experiment. The results show that error-free performance can be achieved up to a communication distance of 55 m and the range estimation errors are below 0.5m within 60m.},
keywords={},
doi={10.1587/transfun.2022EAP1078},
ISSN={1745-1337},
month={July},}
부
TY - JOUR
TI - Simultaneous Visible Light Communication and Ranging Using High-Speed Stereo Cameras Based on Bicubic Interpolation Considering Multi-Level Pulse-Width Modulation
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 990
EP - 997
AU - Ruiyi HUANG
AU - Masayuki KINOSHITA
AU - Takaya YAMAZATO
AU - Hiraku OKADA
AU - Koji KAMAKURA
AU - Shintaro ARAI
AU - Tomohiro YENDO
AU - Toshiaki FUJII
PY - 2023
DO - 10.1587/transfun.2022EAP1078
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E106-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2023
AB - Visible light communication (VLC) and visible light ranging are applicable techniques for intelligent transportation systems (ITS). They use every unique light-emitting diode (LED) on roads for data transmission and range estimation. The simultaneous VLC and ranging can be applied to improve the performance of both. It is necessary to achieve rapid data rate and high-accuracy ranging when transmitting VLC data and estimating the range simultaneously. We use the signal modulation method of pulse-width modulation (PWM) to increase the data rate. However, when using PWM for VLC data transmission, images of the LED transmitters are captured at different luminance levels and are easily saturated, and LED saturation leads to inaccurate range estimation. In this paper, we establish a novel simultaneous visible light communication and ranging system for ITS using PWM. Here, we analyze the LED saturation problems and apply bicubic interpolation to solve the LED saturation problem and thus, improve the communication and ranging performance. Simultaneous communication and ranging are enabled using a stereo camera. Communication is realized using maximal-ratio combining (MRC) while ranging is achieved using phase-only correlation (POC) and sinc function approximation. Furthermore, we measured the performance of our proposed system using a field trial experiment. The results show that error-free performance can be achieved up to a communication distance of 55 m and the range estimation errors are below 0.5m within 60m.
ER -