Valid

GB/T 36296-2018Guide for the validation of remote sensing products (English PDF)

遥感产品真实性检验导则

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 7, 2018

Implementation date

January 1, 2019

Scope

GB/T 36296-2018 is the English-translated version of 遥感产品真实性检验导则.

GB/T 36296-2018 is a guide to validating remote sensing products, that is, checking how closely a product agrees with objective reality and analysing its uncertainty by an independent method.

It covers the objects to be validated, the reference objects, the accuracy and uncertainty evaluation indicators, the basic requirements and the validation methods: direct validation, and indirect validation by cross-comparison, forward model simulation and temporal and spatial trend analysis.

It ends with the content of the validation report, and informative annexes give the calculation of the indicators, sample selection and a sample report. Terms such as true value, relative true value and accepted reference value are defined.

It is meant for producers and users of remote sensing data, inversion and application products. It was issued on 7 June 2018 and has applied since 1 January 2019.

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Document preview — GB/T 36296-2018

National Standard of the People's Republic of China

ICS: 35.240.70
Classification: A 77

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Inspection object
5 Reference object
6 Evaluation Index
6.1 Accuracy Evaluation Index
6.2 Uncertainty Analysis Evaluation Index
7 Basic requirements
8 Inspection Method
8.1 Direct Inspection Method
8.2 Indirect test
8.2.1 Cross Test Method
8.2.2 Forward Model Simulation Test
8.2.3 Temporal and Spatial Trend Analysis Test
9 Verification Report
Appendix A (Informative Appendix) Accuracy Evaluation Index and Calculation Method
Appendix B (Informative) Uncertainty Evaluation Indicators and Calculation Methods
Appendix C (Informative) Sample Selection
Appendix D (Informative Appendix) Sample Authenticity Test Report
References

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the inspection objects, reference objects, basic requirements, evaluation indicators, and inspection methods for the authenticity inspection of remote sensing products.

Universality (general) norms and principles for authenticity testing of remote sensing products.

This standard applies to the universal authenticity test of remote sensing products.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest version (including all amendments) applies to this document.

GB/T 3358.1-2009 Statistical vocabulary and symbols - Part 1. General statistical terms and terms used for probability

GB/T 3358.2-2009 Statistical vocabulary and symbols Part 2. Application statistics

JJF1059.1-2012 Evaluation and Expression of Measurement Uncertainty

3 Terms and Definitions

The definitions of GB/T 3358.1-2009, GB/T 3358.2-2009, JJF1059.1-2012, and the following terms and definitions apply to this document.

3.1 Remote sensing products

Products obtained through remote sensing and produced to meet specific needs, including data obtained from remote sensing sensors, model inversion The results of the parameters arrived, and the results of applications that meet industry application requirements after further processing at a higher level.

Note 1. According to the physical meaning of product value, remote sensing products can be divided into numerical remote sensing products and category remote sensing products.

Note 2. According to the production sequence of the products and the user's needs, they can be divided into remote sensing data products, remote sensing inversion products, and remote sensing applications.

3.2 Verification of validity

An independent method is used to evaluate the degree of agreement between the remote sensing product to be inspected and the objective reality and analyze the process of its uncertainty.

3.3 True value

Under certain conditions, the remote sensing product is theoretically objective and does not have any actual error.

Note: This value is an ideal value and usually cannot be obtained exactly. It can only be accurately obtained if all the causes of the error can be eliminated.

3.4 Relative true value

A value close to the true value, the difference between it and the true value is negligible. This can be used instead of the true value for a given purpose.

3.5 Accepted referenced value

Used as a standard value for the agreed-upon comparison. [GB/T 3358.2-2009, definition 3.2.7]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

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