A CORS-Based Differential Correction Approach for AIS Mobile Stations

In order to remedy the inadequacy of the sources of differential corrections in current automatic identification system (AIS) and to improve the positioning accuracy of AIS mobile stations using single-point positioning, a differential correction approach for AIS mobile stations based on the continu...

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Main Authors: Qing Hu, Linlin Xu, Xinyu Cheng
Format: Article
Language:English
Published: MDPI AG 2018-10-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/18/11/3626
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author Qing Hu
Linlin Xu
Xinyu Cheng
author_facet Qing Hu
Linlin Xu
Xinyu Cheng
author_sort Qing Hu
collection DOAJ
description In order to remedy the inadequacy of the sources of differential corrections in current automatic identification system (AIS) and to improve the positioning accuracy of AIS mobile stations using single-point positioning, a differential correction approach for AIS mobile stations based on the continuously operating reference station (CORS) network is proposed. In the approach, AIS server derives real-time pseudo-range differential corrections from each reference station in CORS network and generates the corrections for AIS mobile stations. Then AIS base stations transmit these differential corrections to mobile stations using broadcast or addressed binary messages for positioning. Load analysis and testing show that this approach can effectively meet the need for differential corrections for most AIS mobile stations under the condition that the occupancy rate of the AIS channel is less than 1% when using broadcast binary messages. In addition, since this method is based on the existing CORS network, it is straightforward to implement in engineering projects and does not require additional hardware upgrades to the existing differential global positioning system (DGPS) and AIS infrastructure.
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spelling doaj.art-4b20a16c005247d2908b8bf56bed9da92022-12-22T04:10:22ZengMDPI AGSensors1424-82202018-10-011811362610.3390/s18113626s18113626A CORS-Based Differential Correction Approach for AIS Mobile StationsQing Hu0Linlin Xu1Xinyu Cheng2Information Science and Technology College, Dalian Maritime University, Dalian 116026, ChinaInformation Science and Technology College, Dalian Maritime University, Dalian 116026, ChinaInformation Science and Technology College, Dalian Maritime University, Dalian 116026, ChinaIn order to remedy the inadequacy of the sources of differential corrections in current automatic identification system (AIS) and to improve the positioning accuracy of AIS mobile stations using single-point positioning, a differential correction approach for AIS mobile stations based on the continuously operating reference station (CORS) network is proposed. In the approach, AIS server derives real-time pseudo-range differential corrections from each reference station in CORS network and generates the corrections for AIS mobile stations. Then AIS base stations transmit these differential corrections to mobile stations using broadcast or addressed binary messages for positioning. Load analysis and testing show that this approach can effectively meet the need for differential corrections for most AIS mobile stations under the condition that the occupancy rate of the AIS channel is less than 1% when using broadcast binary messages. In addition, since this method is based on the existing CORS network, it is straightforward to implement in engineering projects and does not require additional hardware upgrades to the existing differential global positioning system (DGPS) and AIS infrastructure.https://www.mdpi.com/1424-8220/18/11/3626automatic identification system (AIS)continuously operating reference station (CORS)differential global positioning system (DGPS)AIS mobile stations
spellingShingle Qing Hu
Linlin Xu
Xinyu Cheng
A CORS-Based Differential Correction Approach for AIS Mobile Stations
Sensors
automatic identification system (AIS)
continuously operating reference station (CORS)
differential global positioning system (DGPS)
AIS mobile stations
title A CORS-Based Differential Correction Approach for AIS Mobile Stations
title_full A CORS-Based Differential Correction Approach for AIS Mobile Stations
title_fullStr A CORS-Based Differential Correction Approach for AIS Mobile Stations
title_full_unstemmed A CORS-Based Differential Correction Approach for AIS Mobile Stations
title_short A CORS-Based Differential Correction Approach for AIS Mobile Stations
title_sort cors based differential correction approach for ais mobile stations
topic automatic identification system (AIS)
continuously operating reference station (CORS)
differential global positioning system (DGPS)
AIS mobile stations
url https://www.mdpi.com/1424-8220/18/11/3626
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AT linlinxu acorsbaseddifferentialcorrectionapproachforaismobilestations
AT xinyucheng acorsbaseddifferentialcorrectionapproachforaismobilestations
AT qinghu corsbaseddifferentialcorrectionapproachforaismobilestations
AT linlinxu corsbaseddifferentialcorrectionapproachforaismobilestations
AT xinyucheng corsbaseddifferentialcorrectionapproachforaismobilestations