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DBT97-2024: Specification for quality assessment of seismic observation data - GNSS observation
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Specification for quality assessment of seismic observation data - GNSS observation
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DB/T 97-2024
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Basic data | Standard ID | DB/T 97-2024 (DB/T97-2024) | | Description (Translated English) | Specification for quality assessment of seismic observation data - GNSS observation | | Sector / Industry | Chinese Industry Standard (Recommended) | | Classification of Chinese Standard | P15 | | Classification of International Standard | 91.120.25 | | Word Count Estimation | 36,387 | | Date of Issue | 2024-03-01 | | Date of Implementation | 2024-09-01 | | Issuing agency(ies) | China Earthquake Administration | DBT97-2024: Specification for quality assessment of seismic observation data - GNSS observation
---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 91.120.25
CCSP15
Earthquake Industry Standard of the People's Republic of China
Specification for quality evaluation of earthquake observation data
GNSS observations
GNSS observation
Released on 2024-03-01
2024-09-01 Implementation
China Earthquake Administration released
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Symbols and abbreviations 2
5 Basic Provisions 3
6 Evaluation indicators and methods 4
7 Rating 8
8 Evaluation Records and Reports 10
Appendix A (Informative) Publicly available GNSS satellite signal carrier frequencies 12
Appendix B (normative) Frequency combinations of evaluation units 13
Appendix C (Normative) Cycle slip ratio and multipath error calculation method 14
Appendix D (Informative) Evaluation Record Sheet Example and Evaluation Report Template 18
Reference 25
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 of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Earthquake Administration.
This document is under the jurisdiction of the Technical Committee for Earthquake Monitoring and Forecasting Standardization.
This document was drafted by. China Earthquake Networks Center, Hubei Provincial Earthquake Administration, China Earthquake Administration First Monitoring Center, China Earthquake Administration Second Monitoring Center
Survey Center, Yunnan Provincial Seismological Bureau.
The main drafters of this document are. You Xinzhao, Qiao Xuejun, Li Yu, Wang Yuebing, Wang Wei, Zhang Rui, Shi Hongbo, Shao Desheng, Li Wenyi, Cheng Lin, Zhao Bin,
Nie Zhaosheng, Wang Yan, Wang Tan, Li Wei, Dong Lina, Shao Yinxing.
Introduction
The Global Navigation Satellite System (GNSS) has become a basic observation technology for monitoring crustal movement and deformation.
In order to meet the reliability, high precision and timeliness requirements of GNSS observation data products for earthquake monitoring and prediction, the original
The quality evaluation of observation data is extremely important. This document provides evaluation indicators with clear indicative significance and the calculation method of the indicators, and objectively evaluates the quality of observation data.
Improve the quality of GNSS raw observation data and find problems in the observation data, including the impact of changes in observation equipment and observation environment on the data.
The impact of observation quality provides a reference for GNSS observation data post-processing analysis and station operation and maintenance.
According to the earthquake monitoring network operation quality evaluation business listed in DB/T 61-2015 "Earthquake Monitoring and Forecasting Professional Standard System Table"
Special standards, "Evaluation Specifications for Seismic Observation Data Quality" is a series of standards for quality evaluation of observation data of various networks. This document is the
One of a series of standards.
Specification for quality evaluation of earthquake observation data
GNSS observations
1 Scope
This document specifies the content, evaluation indicators and methods of the crustal deformation network global navigation satellite system (GNSS) observation data quality evaluation.
Requirements for grade assessment and presentation of evaluation results, etc.
This document is applicable to the quality evaluation of GNSS observation data of crustal deformation network. The quality evaluation of other GNSS observation data can refer to this document.
use.
2 Normative references
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
fiducialstation
Conduct long-term continuous observation of satellite navigation signals and transmit the observation data to the data center in real time or at regular intervals through communication facilities.
Fixed ground observation station.
[Source. DB/T 19-2020, 3.1.2]
3.2
Regional station campaignstation
An observation station that conducts GNSS observations regularly or irregularly.
3.3
Station
Generally refers to a base station or regional station.
3.4
observationaldata
3.5
Observation period observationsession
The period of time during which the receiver records GNSS satellite signals.
3.6
Daily Session
The observation period is from 0h to 24h Coordinated Universal Time (UTC).
3.7
observationepoch
The observation time corresponding to the data record in the observation data.
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