Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS Technology

Magnetic data consists of a sequence of collected points with spatial coordinates and magnetic information. The spatial location of these points needs to be as exact as possible in order to develop a precise interpretation of magnetic anomalies. GPS is a valuable tool for accomplishing this objectiv...

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Main Authors: Santiago Belda, Juán Sánchez, Ana Belén Anquela, Angel Martín, Jorge Padín
Format: Article
Language:English
Published: MDPI AG 2009-04-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/9/4/2944/
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author Santiago Belda
Juán Sánchez
Ana Belén Anquela
Angel Martín
Jorge Padín
author_facet Santiago Belda
Juán Sánchez
Ana Belén Anquela
Angel Martín
Jorge Padín
author_sort Santiago Belda
collection DOAJ
description Magnetic data consists of a sequence of collected points with spatial coordinates and magnetic information. The spatial location of these points needs to be as exact as possible in order to develop a precise interpretation of magnetic anomalies. GPS is a valuable tool for accomplishing this objective, especially if the RTK approach is used. In this paper the VRS (Virtual Reference Station) technique is introduced as a new approach for real-time positioning of magnetic sensors. The main advantages of the VRS approach are, firstly, that only a single GPS receiver is needed (no base station is necessary), reducing field work and equipment costs. Secondly, VRS can operate at distances separated 50-70 km from the reference stations without degrading accuracy. A compact integration of a GSM-19 magnetometer sensor with a geodetic GPS antenna is presented; this integration does not diminish the operational flexibility of the original magnetometer and can work with the VRS approach. The coupled devices were tested in marshlands around Gandia, a city located approximately 100 km South of Valencia (Spain), thought to be the site of a Roman cemetery. The results obtained show adequate geometry and high-precision positioning for the structures to be studied (a comparison with the original low precision GPS of the magnetometer is presented). Finally, the results of the magnetic survey are of great interest for archaeological purposes.
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spelling doaj.art-abc7e299f92f4ef3919878b081d9e7aa2022-12-22T03:59:43ZengMDPI AGSensors1424-82202009-04-01942944295010.3390/s90402944Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS TechnologySantiago BeldaJuán SánchezAna Belén AnquelaAngel MartínJorge PadínMagnetic data consists of a sequence of collected points with spatial coordinates and magnetic information. The spatial location of these points needs to be as exact as possible in order to develop a precise interpretation of magnetic anomalies. GPS is a valuable tool for accomplishing this objective, especially if the RTK approach is used. In this paper the VRS (Virtual Reference Station) technique is introduced as a new approach for real-time positioning of magnetic sensors. The main advantages of the VRS approach are, firstly, that only a single GPS receiver is needed (no base station is necessary), reducing field work and equipment costs. Secondly, VRS can operate at distances separated 50-70 km from the reference stations without degrading accuracy. A compact integration of a GSM-19 magnetometer sensor with a geodetic GPS antenna is presented; this integration does not diminish the operational flexibility of the original magnetometer and can work with the VRS approach. The coupled devices were tested in marshlands around Gandia, a city located approximately 100 km South of Valencia (Spain), thought to be the site of a Roman cemetery. The results obtained show adequate geometry and high-precision positioning for the structures to be studied (a comparison with the original low precision GPS of the magnetometer is presented). Finally, the results of the magnetic survey are of great interest for archaeological purposes.http://www.mdpi.com/1424-8220/9/4/2944/Magnetic dataGNSS positioningVRS approachsensor integration
spellingShingle Santiago Belda
Juán Sánchez
Ana Belén Anquela
Angel Martín
Jorge Padín
Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS Technology
Sensors
Magnetic data
GNSS positioning
VRS approach
sensor integration
title Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS Technology
title_full Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS Technology
title_fullStr Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS Technology
title_full_unstemmed Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS Technology
title_short Compact Integration of a GSM-19 Magnetic Sensor with High-Precision Positioning using VRS GNSS Technology
title_sort compact integration of a gsm 19 magnetic sensor with high precision positioning using vrs gnss technology
topic Magnetic data
GNSS positioning
VRS approach
sensor integration
url http://www.mdpi.com/1424-8220/9/4/2944/
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