GB/T 41450-2022Technical specification of multi-sensor consistency testing for unmanned aerial vehicle (UAV) borne low altitude remote sensing monitoring (English PDF)
无人机低空遥感监测的多传感器一致性检测技术规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
April 15, 2022
Implementation date
April 15, 2022
Scope
GB/T 41450-2022 is the English-translated version of 无人机低空遥感监测的多传感器一致性检测技术规范.
GB/T 41450-2022 says how to check that the several sensors carried on a low altitude unmanned aerial vehicle agree with one another when used for remote sensing monitoring.
It applies to fixed-wing and multi-rotor UAVs carrying a lidar together with optical remote sensing sensors.
It fixes the basic requirements - the detection process and content, the test instruments, the space and time reference and the data collection - the indoor and outdoor detection conditions, and the flight itself, with its plan, environment, speed and altitude.
Radiation consistency is then judged on the lidar, on the optical sensors and on the two together, using reflectance correlation and the relative median error of reflectance, and geometric consistency in the same way.
Three informative annexes give example observation and calculation handbooks and a test report. It was issued on 15 April 2022 and has applied since 15 April 2022.
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Document preview — GB/T 41450-2022
National Standard of the People's Republic of China
- ICS
- 07.040
- Classification
- A 75
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Abbreviations
- 5 Basic Requirements
- 5.1 Detection process
- 5.2 Detection content
- 5.3 Testing Instrument
- 5.4 Space-time benchmarks
- 5.5 Data Collection
- 6 Detection condition
- 6.1 General provisions
- 6.2 Outdoor detection conditions
- 6.3 Indoor testing conditions
- 7 Detect flight
- 7.1 Flight Plan
- 7.2 Flight Environment
- 7.3 Flight speed
- 7.4 Flight altitude
- 8 Radiation Consistency Detection
- 8.1 Detection of Lidar Radiation Performance
- 8.2 Optical Remote Sensing Sensor Radiation Performance Detection
- 8.3 Multi-sensor radiation consistency detection
- 9 Geometric Consistency Detection
- 9.1 Lidar Geometric Performance Detection
- 9.2 Geometric performance detection of optical remote sensing sensors
- 9.3 Multi-Sensor Geometric Consistency Detection
- 10 Evaluation and arrangement of test results
- 10.1 Evaluation of test results
- 10.2 Collation of test results
- 10.3 Filing of test materials
- Appendix A (Informative) Example of Observation Handbook
- Appendix B (Informative) Calculation Handbook Example
- Appendix C (Informative) Test Report Example
- Reference
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 of Standardization Documents" drafted.
1 Scope
This document specifies the basic requirements, detection conditions, detection flight, radiation consistency testing, geometric consistency testing, evaluation and sorting of testing results.
This document applies to the radiation and geometric consistency detection of multi-sensor remote sensing monitoring based on fixed-wing and multi-rotor low-altitude UAVs.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.
GB/T 28591-2012 Wind Rating
CH/T 3004-2021 Field Specification for Low Altitude Digital Aerial Photogrammetry
CH/T 3005-2021 Specification for low-altitude digital aerial photography
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Optical remote sensing sensor
Instruments for receiving or recording the spectral information of electromagnetic waves reflected or radiated by objects in the visible, near-infrared, mid-infrared and thermal infrared bands of the electromagnetic spectrum.
3.2 Lidar
A system that emits laser beams and receives echoes to obtain three-dimensional information on objects. [Source: GB/T 14950-2009, 4.150]
3.3 Multi-sensor
It is an integrated system composed of lidar and optical remote sensing sensors, which collects and provides information from the two.
3.4 Radiation consistency
Under the same observation conditions, for the same observation target, the degree of agreement between the multiple results of the radiation measurement values of the multi-sensor integrated system.
Note: The main metrics include reflectance correlation and reflectance relative median error.
3.5 Geometric consistency
Under the same observation conditions, for the same observation target, the degree of agreement between the multiple results of the geometric measurement values of the multi-sensor integrated system.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 23 pages — is available in the English PDF.
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