Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals

Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals

We investigate characteristics and impacts of the mutual interference to a LiDAR using an analog true-random signal, for autonomous vehicle applications. Various LiDAR signals with a continuous-wave, a pulse light from a directly modulated laser, and a frequency-modulated continuous-wave light, were...

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Bibliographic Details
Main Authors: Il-Pyeong Hwang, Chang-Hee Lee
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Mutual interference
optical sensors
random LiDAR
Online Access:https://ieeexplore.ieee.org/document/9125926/
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spelling doaj-6883e9cc825c4012b339a37aca40c7d42021-03-30T02:22:09ZengIEEEIEEE Access2169-35362020-01-01812412312413310.1109/ACCESS.2020.30048919125926Mutual Interferences of a True-Random LiDAR With Other LiDAR SignalsIl-Pyeong Hwang0https://orcid.org/0000-0001-6458-3119Chang-Hee Lee1https://orcid.org/0000-0003-3458-7543School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South KoreaSchool of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South KoreaWe investigate characteristics and impacts of the mutual interference to a LiDAR using an analog true-random signal, for autonomous vehicle applications. Various LiDAR signals with a continuous-wave, a pulse light from a directly modulated laser, and a frequency-modulated continuous-wave light, were generated as the mutual interference signals. The signal patterns of the interference signal formats at the receiver of the victim LiDAR were characterized by measurement results. There exist two major impacts of the mutual interference, causing a false alarm that induces ghost targets and/or images in 3-D scanning LiDARs, and reducing the SNR that degrades detection probability of an echo signal. For quantitative analysis, we estimate the cross-correlation related to the two influences. From the results, it is confirmed that the proposed LiDAR using the random signal has the mutual interference immunity regardless of the signal formats of the interference.https://ieeexplore.ieee.org/document/9125926/Mutual interferenceoptical sensorsrandom LiDAR
collection DOAJ
language English
format Article
sources DOAJ
author Il-Pyeong Hwang
Chang-Hee Lee
spellingShingle Il-Pyeong Hwang
Chang-Hee Lee
Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals
IEEE Access
Mutual interference
optical sensors
random LiDAR
author_facet Il-Pyeong Hwang
Chang-Hee Lee
author_sort Il-Pyeong Hwang
title Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals
title_short Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals
title_full Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals
title_fullStr Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals
title_full_unstemmed Mutual Interferences of a True-Random LiDAR With Other LiDAR Signals
title_sort mutual interferences of a true-random lidar with other lidar signals
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2020-01-01
description We investigate characteristics and impacts of the mutual interference to a LiDAR using an analog true-random signal, for autonomous vehicle applications. Various LiDAR signals with a continuous-wave, a pulse light from a directly modulated laser, and a frequency-modulated continuous-wave light, were generated as the mutual interference signals. The signal patterns of the interference signal formats at the receiver of the victim LiDAR were characterized by measurement results. There exist two major impacts of the mutual interference, causing a false alarm that induces ghost targets and/or images in 3-D scanning LiDARs, and reducing the SNR that degrades detection probability of an echo signal. For quantitative analysis, we estimate the cross-correlation related to the two influences. From the results, it is confirmed that the proposed LiDAR using the random signal has the mutual interference immunity regardless of the signal formats of the interference.
topic Mutual interference
optical sensors
random LiDAR
url https://ieeexplore.ieee.org/document/9125926/
work_keys_str_mv AT ilpyeonghwang mutualinterferencesofatruerandomlidarwithotherlidarsignals
AT changheelee mutualinterferencesofatruerandomlidarwithotherlidarsignals
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