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GB/T 42640-2023: Specification for underwater topographic survey by multibeam echo sounding system
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Specification for underwater topographic survey by multibeam echo sounding system
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GB/T 42640-2023
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Basic data | Standard ID | GB/T 42640-2023 (GB/T42640-2023) | | Description (Translated English) | Specification for underwater topographic survey by multibeam echo sounding system | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A76 | | Classification of International Standard | 07.040; 07.060 | | Word Count Estimation | 29,275 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42640-2023: Specification for underwater topographic survey by multibeam echo sounding system
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 07:040;07:060
CCSA76
National Standards of People's Republic of China
Technical specification for multi-beam underwater topographic survey
Released on 2023-05-23
2023-12-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 General 2
4:1 Main content 2
4:2 Regional division 2
4:3 Surveying and mapping datum 3
4:4 Measurement accuracy 3
4:5 Resolution and Coverage 3
5 System Configuration and Installation Calibration 4
5:1 Hardware device 4
5:2 Software system 4
5:3 Installation and calibration 5
6 Measurement Requirements 5
6:1 Measurement preparation 5
6:2 Measurement implementation 6
6:3 Measurement report 8
7 Data processing 8
7:1 Inspection before processing 8
7:2 Positioning data processing 8
7:3 Bathymetric data processing 8
7:4 Evaluation of Sounding Accuracy 9
7:5 Backscatter data processing 9
7:6 Outcome data output 9
7:7 Data processing record and processing report 9
8 Data Inspection and Submission 10
8:1 Document inspection and acceptance 10
8:2 Document Submission 10
Appendix A (informative) Commonly used coordinate systems for multi-beam measurement 11
Appendix B (informative) Installation records of sensors of the multi-beam bathymetry system 12
Appendix C (Informative) Principles and Methods of Calibrating Installation Deviation of Each Sensor in Multi-beam Bathymetry System 14
Appendix D (informative) Multi-beam sounding system transducer draft measurement records 20
Appendix E (informative) Multi-beam sounding system sound velocity profile measurement record table 21
Appendix F (informative) Multi-beam measurement report record 22
Appendix G (informative) Multi-beam sounding system measurement data processing records 23
Reference 24
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by the Ministry of Natural Resources of the People's Republic of China:
This document is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283):
This document was drafted by: The First Institute of Oceanography, Ministry of Natural Resources, Shandong University of Science and Technology, Institute of Oceanology, Chinese Academy of Sciences:
The main drafters of this document: Chen Yilan, Tang Qiuhua, Feng Yikai, Wang Shengli, Yang Fanlin, Luan Zhendong, Zhou Xinghua, Ding Jisheng, Liu Yanxiong,
Zhang Kai, Zhang Jianxing, Yang Long:
Technical specification for multi-beam underwater topographic survey
1 Scope
This document specifies the general principles, system configuration, installation and calibration, measurement requirements, data processing, resource
Material inspection and submission requirements:
This document is applicable to the underwater topographic survey of shipborne multi-beam bathymetry systems, and can also be used as a reference for other observation platforms equipped with multi-beam surveys:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB 12327 Hydrographic survey specification
JTS131 Waterway engineering survey specification
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
multibeam echo sounder multibeamechosounder
Using acoustic beamforming technology, one acoustic signal transmission and reception can obtain multiple sounding points at the same time, realizing the echo of strip depth measurement
Sounding device:
3:2
multi-beam
A strip sounding system consisting of a multi-beam sounder, auxiliary equipment, and acquisition and processing software:
Note: Auxiliary equipment includes locator, attitude sensor, heading measuring instrument, surface sound velocity instrument, sound velocity profile instrument, and the computer for system control, data acquisition and processing:
computer etc:
3:3
Amplitude swath
the banner
Bands
The intersection of the transmitting beam and multiple receiving beams forms a series of beam footprints, and the series of beam footprints are arranged to form a vertical track direction,
Bottom strip measurement range with a certain width:
3:4
The percentage of the width of the overlapping portion of the amplitude between adjacent survey lines and the survey line spacing:
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