Improving the Accuracy of TOF LiDAR Based on Balanced Detection Method

Jingjing Li; Ying Bi; Kun Li; Lingyi Wu; Jie Cao; Qun Hao

doi:10.3390/s23084020

Improving the Accuracy of TOF LiDAR Based on Balanced Detection Method

Jingjing Li, Ying Bi, Kun Li, Lingyi Wu, Jie Cao^*, Qun Hao^*

^*Corresponding author for this work

School of Optics and Photonics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The ranging accuracy of pulsed time-of-flight (TOF) lidar is affected by walk error and jitter error. To solve the issue, the balanced detection method (BDM) based on fiber delay optic lines (FDOL) is proposed. The experiments are carried out to prove the performance improvement of BDM over the conventional single photodiode method (SPM). The experimental results show that BDM can suppress common mode noise and simultaneously shift the signal to high frequency, which reduces the jitter error by approximately 52.4% and maintains the walk error at less than 300 ps with a non-distorted waveform. The BDM can be further applied to silicon photomultipliers.

Original language	English
Article number	4020
Journal	Sensors
Volume	23
Issue number	8
DOIs	https://doi.org/10.3390/s23084020
Publication status	Published - Apr 2023

Keywords

accuracy
balanced detection
lidar
time-of-flight (TOF)

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10.3390/s23084020

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title = "Improving the Accuracy of TOF LiDAR Based on Balanced Detection Method",

abstract = "The ranging accuracy of pulsed time-of-flight (TOF) lidar is affected by walk error and jitter error. To solve the issue, the balanced detection method (BDM) based on fiber delay optic lines (FDOL) is proposed. The experiments are carried out to prove the performance improvement of BDM over the conventional single photodiode method (SPM). The experimental results show that BDM can suppress common mode noise and simultaneously shift the signal to high frequency, which reduces the jitter error by approximately 52.4% and maintains the walk error at less than 300 ps with a non-distorted waveform. The BDM can be further applied to silicon photomultipliers.",

keywords = "accuracy, balanced detection, lidar, time-of-flight (TOF)",

author = "Jingjing Li and Ying Bi and Kun Li and Lingyi Wu and Jie Cao and Qun Hao",

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T1 - Improving the Accuracy of TOF LiDAR Based on Balanced Detection Method

AU - Li, Jingjing

AU - Bi, Ying

AU - Li, Kun

AU - Wu, Lingyi

AU - Cao, Jie

AU - Hao, Qun

PY - 2023/4

Y1 - 2023/4

N2 - The ranging accuracy of pulsed time-of-flight (TOF) lidar is affected by walk error and jitter error. To solve the issue, the balanced detection method (BDM) based on fiber delay optic lines (FDOL) is proposed. The experiments are carried out to prove the performance improvement of BDM over the conventional single photodiode method (SPM). The experimental results show that BDM can suppress common mode noise and simultaneously shift the signal to high frequency, which reduces the jitter error by approximately 52.4% and maintains the walk error at less than 300 ps with a non-distorted waveform. The BDM can be further applied to silicon photomultipliers.

AB - The ranging accuracy of pulsed time-of-flight (TOF) lidar is affected by walk error and jitter error. To solve the issue, the balanced detection method (BDM) based on fiber delay optic lines (FDOL) is proposed. The experiments are carried out to prove the performance improvement of BDM over the conventional single photodiode method (SPM). The experimental results show that BDM can suppress common mode noise and simultaneously shift the signal to high frequency, which reduces the jitter error by approximately 52.4% and maintains the walk error at less than 300 ps with a non-distorted waveform. The BDM can be further applied to silicon photomultipliers.

KW - accuracy

KW - balanced detection

KW - lidar

KW - time-of-flight (TOF)

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JO - Sensors

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Improving the Accuracy of TOF LiDAR Based on Balanced Detection Method

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Keywords

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