An Appraisal of Multibeam Echosounder Calibration
One of the most impressive hydrographic technique developed over the past few decade is multibeam sonar systems. Sounding data from these systems is a result of processing information from several data sources. Among them, positional data from Global Positioning System (GPS), vessels heading and at...
| Main Authors: | , , |
|---|---|
| Format: | Conference or Workshop Item |
| Sprog: | English |
| Udgivet: |
2007
|
| Fag: | |
| Online adgang: | http://eprints.utm.my/4676/1/74_Mohd_Razali_Mahmud_AN__APPRAISAL__OF__MULTIBEAM_.pdf |
| _version_ | 1825909601160134656 |
|---|---|
| author | Mahmud, Mohd. Razali M. D. E. K., Gunathilaka Tang, Kelvin Kang Wee |
| author_facet | Mahmud, Mohd. Razali M. D. E. K., Gunathilaka Tang, Kelvin Kang Wee |
| author_sort | Mahmud, Mohd. Razali |
| collection | ePrints |
| description | One of the most impressive hydrographic technique developed over the past few decade is multibeam sonar systems. Sounding data from these systems is a result of
processing information from several data sources. Among them, positional data from Global Positioning System (GPS), vessels heading and attitude data from gyrocompass and motion sensor systems, vertical reference data from tide gauge and sound speed data, in addition to the multibeam data itself. There must be a good coordination between these systems in order to obtain reliable data. To determine this,
a proper and thorough field calibration procedure has to be carried out on the system as a whole. This process begins with measurement of static offsets between each sensor system with reference to a fixed point on the vessel. Preferably, the point of centre of gravity (COG). Then the patch test is carried out to determine the mounting
offsets and GPS latency and lastly a performance test to verify whether the data meet the accuracy requirements for the survey. This is achieved through a comparison of data with a reference surface. This paper discusses the theoretical aspects, steps involved and results of the calibration procedures for multibeam sonars, using
RESON SeaBat 8124 multibeam system. Finally, a summary of multibeam sonar calibration criteria is also presented showing the methodology involve which include when to perform each test and applying corrections. |
| first_indexed | 2024-03-05T18:04:36Z |
| format | Conference or Workshop Item |
| id | utm.eprints-4676 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T18:04:36Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | utm.eprints-46762017-10-31T05:09:44Z http://eprints.utm.my/4676/ An Appraisal of Multibeam Echosounder Calibration Mahmud, Mohd. Razali M. D. E. K., Gunathilaka Tang, Kelvin Kang Wee TA Engineering (General). Civil engineering (General) One of the most impressive hydrographic technique developed over the past few decade is multibeam sonar systems. Sounding data from these systems is a result of processing information from several data sources. Among them, positional data from Global Positioning System (GPS), vessels heading and attitude data from gyrocompass and motion sensor systems, vertical reference data from tide gauge and sound speed data, in addition to the multibeam data itself. There must be a good coordination between these systems in order to obtain reliable data. To determine this, a proper and thorough field calibration procedure has to be carried out on the system as a whole. This process begins with measurement of static offsets between each sensor system with reference to a fixed point on the vessel. Preferably, the point of centre of gravity (COG). Then the patch test is carried out to determine the mounting offsets and GPS latency and lastly a performance test to verify whether the data meet the accuracy requirements for the survey. This is achieved through a comparison of data with a reference surface. This paper discusses the theoretical aspects, steps involved and results of the calibration procedures for multibeam sonars, using RESON SeaBat 8124 multibeam system. Finally, a summary of multibeam sonar calibration criteria is also presented showing the methodology involve which include when to perform each test and applying corrections. 2007-11-07 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/4676/1/74_Mohd_Razali_Mahmud_AN__APPRAISAL__OF__MULTIBEAM_.pdf Mahmud, Mohd. Razali and M. D. E. K., Gunathilaka and Tang, Kelvin Kang Wee (2007) An Appraisal of Multibeam Echosounder Calibration. In: Joint International Symposium and Exhibition on Geoinformation and International Symposium and Exhibition on Gps/Gnss 2007, 5-7 November 2007, Persada Johor International Convention Centre, Johor Bahru, Johor. http://www.insidegnss.com/node/13 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Mahmud, Mohd. Razali M. D. E. K., Gunathilaka Tang, Kelvin Kang Wee An Appraisal of Multibeam Echosounder Calibration |
| title | An Appraisal of Multibeam Echosounder Calibration |
| title_full | An Appraisal of Multibeam Echosounder Calibration |
| title_fullStr | An Appraisal of Multibeam Echosounder Calibration |
| title_full_unstemmed | An Appraisal of Multibeam Echosounder Calibration |
| title_short | An Appraisal of Multibeam Echosounder Calibration |
| title_sort | appraisal of multibeam echosounder calibration |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utm.my/4676/1/74_Mohd_Razali_Mahmud_AN__APPRAISAL__OF__MULTIBEAM_.pdf |
| work_keys_str_mv | AT mahmudmohdrazali anappraisalofmultibeamechosoundercalibration AT mdekgunathilaka anappraisalofmultibeamechosoundercalibration AT tangkelvinkangwee anappraisalofmultibeamechosoundercalibration AT mahmudmohdrazali appraisalofmultibeamechosoundercalibration AT mdekgunathilaka appraisalofmultibeamechosoundercalibration AT tangkelvinkangwee appraisalofmultibeamechosoundercalibration |