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GB/T 42646-2023 English PDF

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US$279.00 · In stock
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GB/T 42646-2023: Arrangement and measurement of laser footprint detectors for the field calibration of spaceborne laser altimeter
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42646-2023	279	Add to Cart	3 days	Arrangement and measurement of laser footprint detectors for the field calibration of spaceborne laser altimeter	Valid

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Basic data

Standard ID: GB/T 42646-2023 (GB/T42646-2023)
Description (Translated English): Arrangement and measurement of laser footprint detectors for the field calibration of spaceborne laser altimeter
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: V75
Classification of International Standard: 49.020
Word Count Estimation: 13,154
Date of Issue: 2023-05-23
Date of Implementation: 2023-09-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42646-2023: Arrangement and measurement of laser footprint detectors for the field calibration of spaceborne laser altimeter

---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 49:020 CCSV75 National Standards of People's Republic of China Spaceborne Laser Altimeter Site Calibration Detector Layout and measurement method Released on 2023-05-23 2023-09-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General requirements 1 4:1 Measuring instruments 1 4:2 Measuring weather 2 4:3 Setting up the site 2 5 layout requirements 2 5:1 Requirements for layout of laser ground detectors 2 5:2 Layout requirements for laser corner reflectors 2 6 Measurement content 3 7 Measurement procedure 3 8 Measurement data processing method 3 9 Uncertainty analysis 4 9:1 Analysis step 4 9:2 Uncertainty factor 4 9:3 Uncertainty calculation formula 4 Appendix A (Informative) Layout Diagram 5 Appendix B (Informative) Record Form 6

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 content of this document may involve patents, and the issuing organization of this document does not undertake the responsibility for identifying patents: This document is proposed and managed by the National Aerospace Technology and Its Application Standardization Technical Committee (SAC/TC425): This document was drafted by: China Resources Satellite Application Center, China Siwei Surveying and Mapping Technology Co:, Ltd:, Aerospace Information Innovation of Chinese Academy of Sciences Research Institute, Wuhan University, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Chinese Academy of Surveying and Mapping, Beijing Zhongkan Maipuke Technology Co:, Ltd:, the Fourth Topographic Survey Team of the Ministry of Natural Resources, Xi'an Jiaotong University, Taiyuan University of Technology, and China Aerospace Standardization Institute: The main drafters of this document: Han Qijin, Ma Lingling, Long Xiaoxiang, Li Jingmei, Li Song, Min Xiangjun, Xu Zhaopeng, Li Dacheng, Wang Yupeng, Li Qingpeng, Chen Jun, Zeng Jian, Zhao Hang, Di Zhizhong, Ma Yue, Lian Zhipeng, Cui Lin, Zhang Xuewen, Li Xiaojin, Ma Xiuxiu, Du Xiaozheng, Zhao Yongguang, Zhao Yuanchun, Zhang Zexing, Wu Yongliang:

Introduction

Affected by the launch process and external environmental factors on orbit, the laser pointing parameters and ranging parameters of the spaceborne laser altimeter will have certain differences: Variety: In order to ensure the quality of the elevation data products of the subsequent ground processing system, it is necessary to carry out on-orbit calibration of the spaceborne laser altimeter to obtain accurate The laser altimeter pointing angle and ranging parameter error correction coefficient: The purpose of this document is to formulate scientific and feasible ground detector layout and operation rules for field calibration of spaceborne laser altimeter Fan, to ensure that the ground laser detector can accurately capture the ground footprint information of the spaceborne laser altimeter, and provide reliable information for the on-orbit calibration of the spaceborne laser altimeter: Rely on ground control information: Spaceborne Laser Altimeter Site Calibration Detector Layout and measurement method

1 Scope

This document specifies the general requirements, layout requirements, measurement content, and measurement procedures for spaceborne laser altimeter site calibration and ground detector measurement: sequence, measurement data processing methods and uncertainty analysis: This document is applicable to the layout and measurement of spaceborne laser altimeter site calibration ground detectors: Use of other similar ground detectors The formula refers to the execution:

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/T 18314 Global Positioning System (GPS) measurement specification GB 22021 National Geodetic Basic Technical Regulations GB/T 34509:2-2017 On-orbit site radiometric calibration method for optical remote sensors of land observation satellites Part 2: Thermal infrared

3 Terms and Definitions

The following terms and definitions defined in GB 22021 apply to this document: 3:1 Laser ground detector groundlaserdetector The photoelectric detection equipment that captures the laser footprint information emitted by the spaceborne laser altimeter on the ground: 3:2 Mounted on a satellite, it is an active detection lidar system that precisely measures the distance from the satellite to the earth's surface or the fluctuation of the earth's surface: 3:3 Calibration test site for correcting system errors of pointing angle and ranging value of spaceborne laser altimeter:

4 General requirements

4:1 Measuring instruments 4:1:1 Laser ground detectors The laser ground detector is a photoelectric detection device used to capture the ground laser footprint information emitted by the spaceborne laser altimeter: For calibration, the performance requirements are as follows: a) The wavelength response range should cover the working band of the spaceborne laser altimeter; b) The energy response range should cover the energy density within the ground footprint range of the spaceborne laser altimeter; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42646-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42646-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 42646-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42646-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.